List of state highways in Iowa
Highway names | |
---|---|
Interstates | Interstate nn (I-nn) |
US Highways | U.S. Highway nn (US nn) |
System links | |
State highways in the U.S. state of Iowa are owned and maintained by the Iowa Department of Transportation.
Number | Length (mi)[1] | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
---|---|---|---|---|---|---|---|---|
No. 1 | 236[2] | 380 | Missouri state line near Lamoni | Minnesota state line near Northwood | 1920 | 1926 | Jefferson Highway through Iowa; became US 65 | |
Iowa 1 | 119.268 | 191.943 | Iowa 2 south of Keosauqua | US 151 south of Anamosa | 1926 | current | ||
Iowa 2 | 232 | 373 | US 6 near Lewis | IL 2 at Muscatine | 1920 | 1939 | Renumbered Iowa 92 | |
Iowa 2 | 251.376 | 404.550 | N-2 at Nebraska City, Neb. | US 61 at Fort Madison | 1941 | current | ||
Iowa 3 | 264 | 425 | N-2 at Nebraska City, Neb. | IL 9 at Fort Madison | 1920 | 1941 | Renumbered Iowa 2 | |
Iowa 3 | 326.163 | 524.908 | SD 50 near Westfield | US 52 / US 61 / US 151 in Dubuque | 1945 | current | ||
Iowa 4 | 24.3 | 39.1 | US 59 / Iowa 141 at Denison | Iowa 175 at Odebolt | 1920 | 1968 | Renumbered Iowa 39 | |
Iowa 4 | 146.343 | 235.516 | Iowa 44 in Panora | MN 4 near Estherville | 1969 | current | Former Iowa 17 | |
Iowa 5 | 76.4 | 123.0 | Iowa 3 near Aurelia | US 169 at Fort Dodge | 1920 | 1968 | Renumbered Iowa 7 | |
Iowa 5 | 103.540 | 166.631 | Route 5 south of Cincinnati | I-35 near West Des Moines | 1969 | current | Former portion of Iowa 60 | |
No. 6 | 369[2] | 594 | Nebraska state line at Council Bluffs | Illinois state line at Clinton | 1920 | 1926 | Lincoln Highway through Iowa; became US 30 | |
Iowa 6 | 104 | 167 | Route 5 near Cincinnati | US 32 in Des Moines | 1926 | 1931 | Formerly No. 17 and No. 59 | |
Iowa 7 | 140 | 230 | US 6 at Council Bluffs | City US 6 in Des Moines | 1920 | 1939 | Replaced by Iowa 64 | |
Iowa 7 | 0.5 | 0.80 | Iowa 99 in Oakville | Oakville | 1955 | 1957 | Renumbered Iowa 407; spur route | |
Iowa 7 | 22 | 35 | I-29 / US 77 in Sioux City | Iowa 3 near Brunsville | 1957 | 1968 | Former Iowa 29; portions given to Woodbury county and the rest was renumbered as unsigned Iowa 985 | |
Iowa 7 | 73.661 | 118.546 | Iowa 3 near Aurelia | US 169 at Fort Dodge | 1969 | current | Former Iowa 5 | |
No. 8 | 283[2] | 455 | No. 6 in Council Bluffs | Illinois state line at Burlington | 1920 | 1926 | Became US 34 | |
Iowa 8 | 13.961 | 22.468 | US 63 in Traer | US 218 near Garrison | 1926 | current | ||
Iowa 9 | 295.088 | 474.898 | SD 42 near Larchwood | WIS 82 at Lansing | 1920 | current | ||
Iowa 10 | 104.512 | 168.196 | SD 46 near Hawarden | Iowa 4 at Havelock | 1920 | current | ||
Iowa 11 | 98 | 158 | US 151 / Iowa 64 in Cedar Rapids | US 52 / Iowa 24 in Calmar | 1920 | 1941 | Renumbered as part of Iowa 150 | |
Iowa 12 | 46.274 | 74.471 | US 20 / US 75 at Sioux City | Iowa 10 in Hawarden | 1920 | current | Signed as US 20 Bus through Sioux City | |
Iowa 13 | 85.235 | 137.172 | US 30 / US 151 near Bertram | US 52 near Froelich | 1920 | current | ||
Iowa 14 | 187.838 | 302.296 | Iowa 2 at Corydon | US 18 / US 218 Bus in Charles City | 1920 | current | ||
Iowa 15 | 111 | 179 | US 30 in Ames | Minnesota state line near Lake Mills | 1920 | 1935 | Replaced by US 69 | |
Iowa 15 | 14.3 | 23.0 | Iowa 137 at Eddyville | US 63 in Ottumwa | 1937 | 1968 | Renumbered Iowa 23 | |
Iowa 15 | 4.655 | 7.491 | Route 15 south of Milton | Iowa 2 at Milton | 1969 | 2003 | Former Iowa 23 | |
Iowa 15 | 63.578 | 102.319 | Iowa 3 near Pocahontas | MN 15 near Armstrong | 1969 | current | Former Iowa 44 | |
Iowa 16 | — | — | Missouri state line near Redding | Minnesota state line near Ledyard | 1920 | 1930 | Became US 169 | |
Iowa 16 | 65.488 | 105.393 | US 34 near Agency | US 61 at Wever | 1930 | current | ||
Iowa 17 | 146.3 | 235.4 | Iowa 64 in Panora | MN 4 near Estherville | 1920 | 1968 | Renumbered Iowa 4 | |
Iowa 17 | 102.789 | 165.423 | Iowa 141 at Granger | US 18 near Wesley | 1969 | current | Former portion of Iowa 60 | |
No. 18 | 148 | 238 | Missouri state line at Braddyville | No. 23 at Sac City | 1920 | 1926 | Became US 71 | |
No. 19 | — | — | South Dakota state line near Inwood | Wisconsin state line at Lansing | 1920 | 1926 | Replaced by US 18 | |
Iowa 19 | — | — | Backbone State Park | Iowa 3 / Iowa 13 near Strawberry Point | 1927 | 1957 | Renumbered Iowa 410 | |
No. 20 | 324[2] | 521 | Illinois state line at Keokuk | Minnesota state line near Burr Oak | 1920 | 1926 | Became US 61 and US 55 | |
Iowa 21 | — | — | Iowa 141 near Denison | Minnesota state line near Allendorf | 1920 | 1934 | Replaced by Iowa 73 | |
Iowa 21 | 97.152 | 156.351 | Iowa 149 near Hedrick | US 20 / Iowa 27 at Waterloo | 1934 | current | ||
No. 22 | 34[2] | 55 | No. 5 at Le Mars | Minnesota state line north of Rock Rapids | 1920 | 1926 | Became US 75 | |
Iowa 22 | 97.905 | 157.563 | Iowa 21 near Thornburg | US 61 at Davenport | 1926 | current | ||
No. 23 | 130[2] | 210 | South Dakota state line at Sioux City | No. 16 at Fort Dodge | 1920 | 1926 | Became US 20 | |
Iowa 23 | 4.7 | 7.6 | Route 15 south of Milton | Iowa 2 at Milton | 1926 | 1968 | Renumbered Iowa 15 | |
Iowa 23 | 14.316 | 23.039 | US 63 in Ottumwa | Iowa 137 at Eddyville | 1969 | 1997 | Former Iowa 15; replaced by US 63 and county roads | |
Iowa 23 | 16.022 | 25.785 | Iowa 92 at Oskaloosa | Iowa 149 near Fremont | 1997 | current | Former US 63 | |
Iowa 24 | 27.546 | 44.331 | US 18 / US 63 in New Hampton | US 52 / Iowa 150 in Calmar | 1928 | current | ||
No. 25 | 20 | 32 | No. 15 / No. 24 at Winterset | No. 2 / No. 17 at Adel | 1920 | 1926 | Renumbered Iowa 16 | |
Iowa 25 | 103.419 | 166.437 | Iowa 2 near Benton | US 30 near Scranton | 1926 | current | ||
Iowa 26 | 9.1 | 14.6 | US 18 in Inwood | Iowa 9 near Larchwood | 1930 | 1968 | Renumbered Iowa 182 | |
Iowa 26 | 11.370 | 18.298 | Iowa 9 in Lansing | MN 26 at New Albin | 1969 | current | Former Iowa 182 | |
Iowa 27 | 6.8 | 10.9 | Alvord | US 75 near Rock Rapids | 1930 | 1980 | Spur route | |
Iowa 27 |
281.689 | 453.335 | Route 27 near Wayland, Mo. | I-35 at the Minnesota state line | 2001 | current | Avenue of the Saints | |
No. 28 | 72[2] | 116 | No. 6 / No. 11 in Cedar Rapids | No. 5 / No. 20 in Dubuque | 1920 | 1926 | Became US 161 | |
Iowa 28 | 21.613 | 34.783 | Iowa 92 at Martensdale | I-35 / I-80 at Johnston | 1926 | current | ||
Iowa 29 | 22 | 35 | I-29 / US 77 in Sioux City | Iowa 3 near Brunsville | 1920 | 1957 | Renumbered Iowa 7 | |
No. 30 | 25 | 40 | No. 23 at Moville | No. 5 at Remsen | 1920 | 1926 | Renumbered Iowa 140 | |
Iowa 31 | 38.504 | 61.966 | US 59 near Quimby | Iowa 141 near Smithland | 1920 | current | ||
No. 32 | 5 | 8.0 | No. 5 near Cleghorn | Cleghorn | 1920 | 1926 | Renumbered Iowa 145 | |
Iowa 32 | 5.101 | 8.209 | US 20 at Dubuque | US 52 / Iowa 3 at Sageville | 1995 | 2017 | ||
Iowa 33 | 55.8 | 89.8 | US 75 at Le Mars | MN 60 at Bigelow, Minn. | 1930 | 1968 | Renumbered Iowa 60 | |
No. 34 | 68 | 109 | No. 4 at Denison | No. 12 at Sioux City | 1920 | 1926 | Renumbered Iowa 141 | |
Iowa 36 | 2.983 | 4.801 | Wall Lake | US 71 near Wall Lake | 1920 | 2003 | Spur route | |
Iowa 37 | 40.321 | 64.890 | Iowa 175 near Turin | US 59 near Earling | 1920 | current | ||
Iowa 38 | 98.941 | 159.230 | US 61 Bus / Iowa 92 in Muscatine | Iowa 3 near Edgewood | 1920 | current | ||
Iowa 39 | 11.5 | 18.5 | US 30 near Logan | Iowa 64/Iowa 191 at Portsmouth | 1920 | 1968 | Renumbered Iowa 44 | |
Iowa 39 | 24.321 | 39.141 | US 59 at Denison | Iowa 175 at Odebolt | 1969 | current | Former Iowa 4 | |
No. 40 | 262[2] | 422 | No. 20 in Keokuk | Minnesota state line near Mona | 1920 | 1926 | Renumbered US 161, US 30, and US 218 | |
Iowa 40 | 3.524 | 5.671 | Allerton | Iowa 2 near Corydon | 1926 | 2003 | Spur route | |
Iowa 41 | 1.827 | 2.940 | Malvern | US 34 near Malvern | 1920 | 2003 | Spur route | |
Iowa 42 | 4.2 | 6.8 | US 275 / Iowa 2 near Riverton | Riverton | 1920 | 1981 | Spur route | |
Iowa 43 | 1.5 | 2.4 | Ringsted | Iowa 15 near Ringsted | 1920 | 1980 | Spur route | |
Iowa 44 | 63.6 | 102.4 | Iowa 3 near Pocahontas | MN 15 near Armstrong | 1920 | 1968 | Renumbered Iowa 15 | |
Iowa 44 | 104.524 | 168.215 | US 30 near Logan | Iowa 141 at Grimes | 1969 | current | Former Iowa 39 and Iowa 64 | |
Iowa 45 | 1.324 | 2.131 | Manilla | Iowa 141 near Manilla | 1920 | 2003 | Spur route | |
Iowa 46 | 6.568 | 10.570 | Iowa 5 near Avon | Iowa 163 in Des Moines | 1953 | 1998 | ||
Iowa 47 | 0.8 | 1.3 | Iowa 14 near Allison | Allison | 1941 | 1980 | Spur route | |
Iowa 48 | 47.919 | 77.118 | US 59 at Shenandoah | US 6 near Lewis | 1920 | current | ||
Iowa 49 | 27.228 | 43.819 | Iowa 2 in Bedford | US 34 in Adams County | 1920 | 2003 | Was originally a spur route from US 34 to Lenox | |
Iowa 50 | 7.135 | 11.483 | US 169 near Lehigh | Lehigh | 1920 | 2003 | Spur route | |
Iowa 51 | 11.007 | 17.714 | US 18 / US 52 at Postville | Iowa 9 near Waukon | 1920 | current | ||
No. 53 | 13 | 21 | No. 14 near Rockford | No. 19 near Nora Springs | 1920 | 1926 | Renumbered Iowa 147 | |
Iowa 53 | 3 | 4.8 | Iowa 10 near Clarksville | Clarksville | 1926 | 1949 | Formerly No. 55 | |
Iowa 54 | 2.9 | 4.7 | Marble Rock | Iowa 14 in Floyd County | 1920 | 1980 | Spur route | |
No. 55 | 3 | 4.8 | No. 10 near Clarksville | Clarksville | 1920 | 1926 | Became Iowa 53 | |
Iowa 55 | 4.506 | 7.252 | Seymour | Iowa 2 near Promise City | 1934 | 2003 | Spur route | |
Iowa 56 | 24.432 | 39.319 | Iowa 150 at West Union | Iowa 13 at Elkader | 1920 | current | ||
Iowa 57 | 43.765 | 70.433 | US 65 near Iowa Falls | US 218 / Iowa 27 / Iowa 58 at Cedar Falls | 1986 | current | ||
Iowa 58 | 12.030 | 19.360 | US 63 at Hudson | US 218 / Iowa 27 / Iowa 57 at Cedar Falls | 1920 | current | ||
Iowa 60 | 223.8 | 360.2 | Route 5 south of Cincinnati | US 18 near Wesley | 1920 | 1968 | Renumbered Iowa 5 and Iowa 17 | |
Iowa 60 | 58.771 | 94.583 | US 75 at Le Mars | MN 60 at Bigelow, Minn. | 1969 | current | Former Iowa 33 | |
No. 61 | 73 | 117 | No. 28 at Anamosa | No. 6 in Lyons | 1920 | 1926 | Renumbered Iowa 117 and Iowa 136 | |
Iowa 62 | 19.633 | 31.596 | Iowa 64 at Maquoketa | US 52 in Bellevue | 1920 | current | ||
No. 63 | 24 | 39 | No. 59 in New Sharon | No. 7 in Grinnell | 1920 | 1926 | Renumbered Iowa 146 | |
Iowa 64 | 64.355 | 103.569 | US 151 at Anamosa | US 52 / IL 64 at Savanna, Ill. | 1936 | current | ||
No. 65 | 21 | 34 | No. 8 at Lucas | No. 1 south of Indianola | 1920 | 1926 | Renumbered Iowa 137 | |
Iowa 66 | 7.011 | 11.283 | Iowa 2 near Diagonal | Diagonal | 1930 | 2003 | Spur route | |
Iowa 68 | 1.933 | 3.111 | Melrose | US 34 near Melrose | 1920 | 2003 | Spur route | |
No. 69 | 3 | 4.8 | No. 3 near Mystic | Mystic | 1920 | 1926 | Renumbered Iowa 138 | |
Iowa 70 | 23.954 | 38.550 | Iowa 92 at Columbus Junction | US 6 in West Liberty | 1969 | current | Former Iowa 76 | |
No. 71 | 3 | 4.8 | Moulton | No. 3 near Moulton | 1920 | 1926 | Renumbered Iowa 142 | |
Iowa 73 | 225 | 362 | Missouri state line south of Shenandoah | Minnesota state line near Allendorf | 1934 | 1935 | Replaced by US 59 | |
No. 75 | 2 | 3.2 | No. 5 near Marcus | Marcus | 1920 | 1926 | Renumbered Iowa 143 | |
Iowa 76 | 22.9 | 36.9 | Columbus City | US 6 in West Liberty | 1920 | 1968 | Renumbered Iowa 70 | |
Iowa 76 | 48.911 | 78.715 | US 18 near McGregor | MN 76 near Eitzen, Minn. | 1969 | current | Former portion of Iowa 13 | |
Iowa 77 | 2.685 | 4.321 | Iowa 92 near Keota | Keota | 1920 | 2003 | Spur route | |
Iowa 78 | 58.429 | 94.032 | Iowa 149 near Martinsburg | US 61 near Morning Sun | 1920 | current | ||
Iowa 79 | 1.7 | 2.7 | Iowa 2 near Bonaparte | Bonaparte | 1920 | 1980 | Spur route | |
Iowa 79 | 5.637 | 9.072 | Geode State Park | US 34 in Middletown | 1980 | 2003 | Park access road | |
Iowa 81 | 9.2 | 14.8 | Iowa 92 near West Chester | Iowa 22 at Wellman | 1920 | 1968 | Renumbered Iowa 114 | |
Iowa 81 | 2.215 | 3.565 | Route 81 near Farmington | Iowa 2 near Farmington | 1969 | current | Former Iowa 114 | |
Iowa 82 | 3.773 | 6.072 | Blairstown | US 30 near Blairstown | 1920 | 2003 | Spur route | |
Iowa 83 | 34.191 | 55.025 | US 59 in Avoca | Iowa 148 in Anita | 1920 | current | ||
Iowa 84 | 2.0 | 3.2 | The Eastern Iowa Airport | I-380 near Cedar Rapids | 1943 | 1980 | Airport access road | |
Iowa 85 | 8.408 | 13.531 | Montezuma city limits | Iowa 21 near Deep River | 1920 | current | ||
Iowa 86 | 0.4 | 0.64 | Fertile | Iowa 9 at Fertile | 1945 | 1980 | Spur route | |
Iowa 86 | 12.519 | 20.147 | US 71 near Milford | MN 86 near Spirit Lake | 1981 | current | ||
Iowa 88 | 8.0 | 12.9 | US 61 / Iowa 2 in Fort Madison | Iowa 16 in Denmark | 1940 | 1980 | Originally a spur route | |
Iowa 89 | 7.7 | 12.4 | Iowa 141 near Woodward | Iowa 17 in Madrid | 1946 | 1980 | Replaced by Iowa 210 | |
No. 90 | 40 | 64 | No. 17 near Bouton | No. 16 at Harcourt | 1920 | 1926 | Became Iowa 16 | |
Iowa 90 | 16 | 26 | Iowa 14 at Grundy Center | Iowa 59 near Voorhies | 1926 | 1932 | Formerly No. 58 | |
Iowa 90 | 16.2 | 26.1 | I-80 in Dallas County | I-35 in Des Moines | 1932 | 1981 | ||
Iowa 91 | 4.1 | 6.6 | Ledyard | US 169 near Ledyard | 1940 | 1980 | Spur route | |
Iowa 91 | 4.643 | 7.472 | Iowa 9 in Lyon County | MN 91 at the Minnesota state line | 1980 | 2003 | ||
Iowa 92 | 274.231 | 441.332 | US 275 / N-92 in Council Bluffs | IL 92 at Muscatine | 1939 | current | ||
Iowa 93 | 29.534 | 47.530 | US 63 near Tripoli | Iowa 150 in Fayette | 1920 | current | ||
Iowa 94 | 11.168 | 17.973 | US 151 Business in Cedar Rapids | Palo | 1966 | 2003 | Spur route | |
Iowa 95 | 3.6 | 5.8 | Carbon | Iowa 148 north of Corning | 1932 | 1980 | Spur route | |
Iowa 96 | 16.635 | 26.771 | Iowa 14 near Gladbrook | US 63 near Gladbrook | 1920 | current | ||
Iowa 97 | 1.532 | 2.466 | Russell | US 34 near Russell | 1920 | 2003 | Spur route | |
Iowa 98 | 1.814 | 2.919 | Leando | Iowa 16 near Douds | 1944 | 2017 | Spur route | |
Iowa 99 | 33.232 | 53.482 | US 34 in Burlington | US 61 in Wapello | 1931 | 2003 | ||
Iowa 100 | 8.285 | 13.333 | Edgewood Road in Cedar Rapids | US 151 / Iowa 13 near Marion | 1984 | current | ||
Iowa 101 | 15.56 | 25.04 | US 218 in Vinton | Iowa 150 north of Urbana | 1920 | 1984 | Replaced by a relocated Iowa 150 | |
Iowa 102 | 1.9 | 3.1 | Hawkeye | US 18 near Hawkeye | 1920 | 1980 | ||
Iowa 102 | 0.501 | 0.806 | New Sharon city limits | US 63 / Iowa 146 in New Sharon | 1980 | current | Unsigned highway | |
Iowa 103 | 15.649 | 25.185 | US 218 near Donnellson | US 61 / Iowa 2 in Fort Madison | 1920 | 2003 | ||
Iowa 104 | 1.5 | 2.4 | Woodburn | US 34 near Woodburn | 1927 | 1980 | Spur route | |
Iowa 106 | 9.0 | 14.5 | Iowa 107 in Clear Lake | US 65 in Mason City | 1920 | 1980 | ||
Iowa 107 | 27.579 | 44.384 | Iowa 3 near Alexander | CR B35 near Clear Lake | 1920 | 2011 | All but parts in Meservey and Thornton removed in 2003 | |
Iowa 108 | 1.2 | 1.9 | Delta | Iowa 92 near Delta | 1923 | 1980 | Spur route | |
Iowa 109 | 1.268 | 2.041 | Oxford | US 6 near Oxford | 1923 | 2003 | Spur route | |
Iowa 110 | 14.789 | 23.801 | US 20 at Schaller | Iowa 7 at Storm Lake | 1934 | current | ||
Iowa 111 | 26.5 | 42.6 | Woden | Kanawha | 1923 | 1990 | Double spur route | |
Iowa 112 | 5.2 | 8.4 | Volga | Iowa 13 near Osborne | 1931 | 1980 | Spur route | |
Iowa 113 | 1.187 | 1.910 | Iowa 64 near Spragueville | Spragueville | 1938 | 2003 | Spur route | |
Iowa 114 | 2.2 | 3.5 | Route 81 near Farmington | Iowa 2 near Farmington | 1923 | 1968 | Renumbered Iowa 81 | |
Iowa 114 | 9.2 | 14.8 | Iowa 92 near West Chester | Iowa 22 at Wellman | 1969 | 1980 | Former Iowa 81 | |
Iowa 115 | 1.237 | 1.991 | US 34 near Stanton | Viking Lake State Park | 1980 | 2003 | Park access road | |
Iowa 116 | 2.776 | 4.468 | US 218 near Waverly | Iowa 3 in Waverly | 1998 | current | Section of US 218 Business in Waverly | |
Iowa 117 | 18.562 | 29.873 | Iowa 163 at Prairie City | US 65 / Iowa 330 near Mingo | 1936 | current | ||
Iowa 119 | 1.0 | 1.6 | Dorchester | Iowa 76 near Dorchester | 1923 | 1980 | Spur route | |
Iowa 120 | 0.8 | 1.3 | Stanton | US 34 near Stanton | 1924 | 1980 | Spur route | |
Iowa 122 | 12.264 | 19.737 | I-35 / US 18 at Clear Lake | Mason City city limits | 1999 | current | ||
Iowa 123 | — | — | US 34 near Rome | Rome | 1970 | 1980 | Spur route | |
Iowa 124 | 2.567 | 4.131 | Iowa 4 in Calhoun County | Twin Lakes State Park | 1924 | 2003 | Park access road | |
Iowa 126 | 0.7 | 1.1 | US 6 near Mitchellville | Mitchellville | 1924 | 1980 | Spur route | |
Iowa 127 | 15.985 | 25.725 | I-29 near Mondamin | US 30 in Logan | 1924 | current | ||
Iowa 128 | 6.982 | 11.236 | Iowa 13 near Elkader | US 52 near Garnavillo | 1924 | current | ||
Iowa 130 | 32.023 | 51.536 | Iowa 38 in Tipton | I-80 / US 61 at Davenport | 1969 | current | ||
Iowa 131 | 4.520 | 7.274 | Iowa 21 in Belle Plaine | US 30 near Belle Plaine | 1937 | 2003 | Part of the Lincoln Highway | |
Iowa 133 | 0.970 | 1.561 | US 30 in Nevada | Nevada | 1963 | 2003 | Spur route | |
Iowa 134 | 4.0 | 6.4 | US 65 near Hampton | Geneva | 1935 | 1980 | Spur route | |
Iowa 135 | 1.9 | 3.1 | Montour | US 30 near Montour | 1954 | 1980 | Spur route | |
Iowa 136 | 97.733 | 157.286 | IL 136 at Clinton | US 52 / Iowa 3 at Luxemburg | 1926 | current | ||
Iowa 137 | 21 | 34 | US 34 at Lucas | US 65 near Indianola | 1926 | 1934 | Formerly No. 65 | |
Iowa 137 | 14.526 | 23.377 | Iowa 5 at Albia | US 63 / Iowa 163 at Eddyville | 1934 | current | ||
Iowa 138 | 3 | 4.8 | Iowa 2 near Mystic | Mystic | 1926 | 1973 | Formerly No. 69 | |
Iowa 139 | 21 | 34 | US 161 in Iowa City | Iowa 38 near Rochester | 1926 | 1929 | Formerly No. 74 | |
Iowa 139 | 11.431 | 18.396 | Iowa 9 near Cresco | MN 139 near Harmony, Minn | 1930 | current | ||
Iowa 140 | 25.309 | 40.731 | US 20 at Moville | Iowa 3 at Remsen | 1926 | current | ||
Iowa 141 | 155.362 | 250.031 | I-29 near Sloan | I-35 / I-80 at Grimes | 1926 | current | ||
Iowa 142 | 10.5 | 16.9 | Route 202 at Coatsville, Mo | Iowa 2 near Moulton | 1926 | 1968 | Renumbered Iowa 202 | |
Iowa 142 | 20.901 | 33.637 | Iowa 2 in Plano | Iowa 5 near Moravia | 1980 | 2003 | ||
Iowa 143 | 12.049 | 19.391 | Iowa 3 at Marcus | Iowa 10 at Granville | 1926 | current | ||
Iowa 144 | 34.039 | 54.780 | Iowa 141 at Perry | Iowa 175 near Harcourt | 1926 | current | ||
Iowa 145 | 5 | 8.0 | Iowa 5 near Cleghorn | Cleghorn | 1926 | 1931 | Formerly No. 32 | |
Iowa 145 | 7.408 | 11.922 | I-29 near Thurman | US 275 near Sidney | 1931 | 2003 | ||
Iowa 146 | 42.735 | 68.775 | US 63 / Iowa 102 in New Sharon | US 30 in Le Grand | 1926 | current | ||
Iowa 147 | 6.706 | 10.792 | Rockford | Iowa 14 in Floyd County | 1926 | 2003 | Spur route | |
Iowa 148 | 66.828 | 107.549 | Route 148 near Bedford | I-80 / US 6 near Anita | 1926 | current | ||
Iowa 149 | 65.897 | 106.051 | US 34 in Ottumwa | I-80 near Williamsburg | 1926 | current | ||
Iowa 150 | 19 | 31 | US 32 at Homestead | US 30 near Cedar Rapids | 1926 | 1930 | Formerly No. 13 | |
Iowa 150 | 85.093 | 136.944 | US 218 at Vinton | US 52 / Iowa 24 at Calmar | 1941 | current | ||
Iowa 151 | 13 | 21 | US 71 at Auburn | Iowa 17 near Lake City | 1926 | 1938 | Formerly No. 35 | |
Iowa 152 | 2 | 3.2 | US 34 near Murray | Murray | 1926 | 1980 | Formerly No. 8 | |
Iowa 152 | 1.402 | 2.256 | I-35 near Osceola | US 69 at Osceola | 1980 | 2014 | ||
Iowa 155 | 3.0 | 4.8 | Nodaway | US 34 near Nodaway | 1933 | 1980 | Spur route | |
Iowa 156 | 4.748 | 7.641 | Iowa 5 near Marysville | Bussey | 1928 | 2003 | Spur route | |
Iowa 157 | 1.032 | 1.661 | US 63 near Lime Springs | Lime Springs | 1931 | 2003 | Spur route | |
Iowa 159 | 1.8 | 2.9 | Iowa 92 near Harper | Harper | 1929 | 1980 | Spur route | |
Iowa 160 | 2.446 | 3.936 | Iowa 415 at Ankeny | I-35 at Ankeny | 1947 | current | ||
Iowa 161 | 1.224 | 1.970 | Iowa 141 at Dedham | Iowa 141 near Dedham | 1951 | 2003 | Former route of Iowa 141 | |
Iowa 162 | 2.660 | 4.281 | Pammel State Park | Iowa 92 in Madison County | 1930 | 1982 | Park access road; renumbered Iowa 322 because it was too close to US 169 | |
Iowa 163 | 166.270 | 267.586 | US 69 in Des Moines | US 34 at Burlington | 1937 | current | ||
Iowa 165 | 0.410 | 0.660 | Abbott Drive at Omaha, Neb. | Abbott Drive at Omaha, Neb. | 1957 | current | Only state highway west of the Missouri River | |
Iowa 166 | 0.6 | 0.97 | Hastings | US 34 near Hastings | 1930 | 1980 | Spur route | |
Iowa 167 | 3.1 | 5.0 | Doon | US 75 near Doon | 1930 | 1980 | Spur route | |
Iowa 168 | 2.8 | 4.5 | Iowa 83 near Minden | Shelby | 1930 | 1980 | Spur route | |
Iowa 171 | 1.1 | 1.8 | Elberon | Iowa 21 near Elberon | 1935 | 1980 | Spur route | |
Iowa 172 | 4.2 | 6.8 | Elgin | US 18 in Clermont | 1930 | 1980 | Spur route | |
Iowa 173 | 14.680 | 23.625 | Iowa 83 near Atlantic | Iowa 44 at Kimballton | 1930 | current | ||
Iowa 175 | 221.367 | 356.256 | N-51 at Decatur, Neb | US 63 near Hudson | 1930 | current | ||
Iowa 177 | 3.2 | 5.1 | Iowa 9 near Osage | Elgin | 1937 | 1980 | Spur route | |
Iowa 178 | 0.9 | 1.4 | Iowa 9 near Little Rock | Little Rock | 1930 | 1980 | Spur route | |
Iowa 179 | 0.7 | 1.1 | US 69 near Klemme | Klemme | 1930 | 1980 | Spur route | |
Iowa 180 | 2.4 | 3.9 | Hayesville | Iowa 149 near Hayesville | 1930 | 1980 | Spur route | |
Iowa 181 | 9.596 | 15.443 | Iowa 5 / Iowa 92 near Pleasantville | Melcher-Dallas | 1931 | 2003 | Spur route | |
Iowa 182 | 11.4 | 18.3 | Iowa 9 in Lansing | MN 26 at New Albin | 1930 | 1968 | Renumbered Iowa 26 | |
Iowa 182 | 9.051 | 14.566 | US 18 in Inwood | Iowa 9 near Larchwood | 1969 | current | ||
Iowa 183 | 29.952 | 48.203 | Iowa 127 near Mondamin | Iowa 141 in Ute | 1930 | current | ||
Iowa 184 | 9.596 | 15.443 | US 275 near Randolph | Randolph | 1934 | 2003 | Spur route | |
Iowa 186 | 3.3 | 5.3 | US 34 near Prescott | Prescott | 1930 | 1980 | Spur route | |
Iowa 187 | 28.385 | 45.681 | US 20 near Masonville | Iowa 150 near Fayette | 1931 | current | ||
Iowa 188 | 24.231 | 38.996 | Iowa 3 near Clarksville | US 63 near Tripoli | 1945 | current | ||
Iowa 189 | 1.0 | 1.6 | Bridgewater | Iowa 92 north or Bridgwater | 1930 | 1980 | Spur route | |
Iowa 190 | 7.1 | 11.4 | Fairbank | Iowa 150 near Oelwein | 1931 | 1980 | Replaced by Iowa 281 | |
Iowa 191 | 22.790 | 36.677 | I-680 near Neola | Iowa 37 at Earling | 1930 | current | ||
Iowa 192 | 2.426 | 3.904 | I-29 / I-80 at Council Bluffs | Kanesville Boulevard in Council Bluffs | 1931 | current | Renumbered from Iowa 241; truncated in 2016 | |
Iowa 193 | 10.852 | 17.465 | US 18 in Fayette County | Iowa 24 in Jackson Junction | 1930 | 2003 | ||
Iowa 195 | 2.896 | 4.661 | Iowa 4 near Plover | Plover | 1935 | 2003 | Spur route | |
Iowa 196 | 10.136 | 16.312 | US 71 / Iowa 175 near Lake View | US 20 near Sac City | 1935 | 2015 | ||
Iowa 197 | 2.567 | 4.131 | Iowa 3 near Albert City | Albert City | 1937 | 2003 | Spur route | |
Iowa 198 | 2.231 | 3.590 | Garrison | US 218 near Garrison | 1930 | 2003 | Spur route | |
Iowa 199 | 2.666 | 4.291 | Van Horne | US 218 near Van Horne | 1930 | 2003 | Spur route | |
Iowa 200 | 2.163 | 3.481 | US 30 near Keystone | Keystone | 1930 | 2003 | Spur route | |
Iowa 201 | 4.755 | 7.652 | Norway | US 30 / US 218 near Atkins | 1930 | 2003 | Spur route | |
Iowa 202 | 10.461 | 16.835 | Route 202 at Coatsville, Mo | Iowa 2 near Moulton | 1969 | current | Former Iowa 142 | |
Iowa 203 | 8.8 | 14.2 | Iowa 9 | Terril | 1930 | 1981 | Spur route | |
Iowa 204 | 5.407 | 8.702 | Iowa 2 near Garden Grove | Garden Grove | 1930 | 2003 | Spur route | |
Iowa 205 | 2.927 | 4.711 | US 65 near Milo | Milo | 1930 | 2003 | Spur route | |
Iowa 206 | 6.221 | 10.012 | US 65 near Liberty Center | Liberty Center | 1930 | 2003 | Spur route | |
Iowa 207 | 3.058 | 4.921 | I-35 near New Virginia | New Virginia | 1930 | 2003 | Spur route | |
Iowa 209 | 0.5 | 0.80 | Iowa 149 near Conroy | Conroy | 1931 | 1975 | Spur route | |
Iowa 210 | 34.781 | 55.975 | Iowa 141 near Woodward | US 65 near Collins | 1938 | current | ||
Iowa 212 | 12.157 | 19.565 | Iowa 21 near Belle Plaine | US 6 at Marengo | 1934 | current | ||
Iowa 213 | 3.9 | 6.3 | Blakesburg | US 34 north of Blakesburg | 1931 | 1980 | Spur route | |
Iowa 214 | 5.736 | 9.231 | Iowa 175 near Ivester | Wellsburg | 1931 | 2003 | Spur route | |
Iowa 215 | 8.738 | 14.062 | Union | Iowa 175 in Eldora | 1931 | 2003 | Spur route | |
Iowa 219 | 1.8 | 2.9 | Iowa 9 near Lake Park | Lake Park | 1931 | 1980 | Spur route | |
Iowa 220 | 7.233 | 11.640 | US 6 at South Amana | US 151 at Amana | 1930 | current | ||
Iowa 221 | 3.909 | 6.291 | I-35 near Story City | Roland | 1947 | 2003 | Spur route | |
Iowa 222 | 14.8 | 23.8 | Iowa 15 near Ottosen | Livermore | 1931 | 1980 | Spur route | |
Iowa 224 | 10.587 | 17.038 | US 6 near Kellogg | Iowa 14 near Laurel | 1930 | current | ||
Iowa 225 | 7.688 | 12.373 | Sully | Iowa 146 in Searsboro | 1931 | 2003 | Spur route | |
Iowa 226 | 10.8 | 17.4 | US 18 | Titonka | 1931 | 1980 | Spur route | |
Iowa 229 | 5.233 | 8.422 | Garwin | US 63 in Tama County | 1931 | 2003 | Spur route | |
Iowa 231 | 4.068 | 6.547 | US 34 west of New London | US 34 east of New London | 2000 | 2003 | Former section of US 34 | |
Iowa 232 | — | — | Earlham | I-80 near Earlham | 1931 | 1980 | Spur route | |
Iowa 238 | 1.063 | 1.711 | Iowa 9 near Harris | Harris | 1931 | 2003 | Spur route | |
Iowa 239 | 0.510 | 0.821 | Waubonsie State Park | Iowa 2 in Fremont County | 1931 | 2003 | Park access road | |
Iowa 240 | 6.389 | 10.282 | Royal | US 71 in Clay County | 1931 | 2003 | Spur route | |
Iowa 241 | 1.1 | 1.8 | Readlyn | Iowa 3 near Readlyn | 1931 | 1980 | Spur route | |
Iowa 242 | 5.855 | 9.423 | US 34 in Mills County | Silver City | 1931 | 2003 | Spur route | |
Iowa 243 | 8.0 | 12.9 | Iowa 140 near Kingsley | Pierson | 1931 | 1980 | Spur route | |
Iowa 243 | 0.559 | 0.900 | Black Hawk Lake State Park | US 71 / Iowa 175 near Wall Lake | 1980 | 2003 | Park access road | |
Iowa 244 | 2.0 | 3.2 | Henderson | US 59 | 1931 | 1980 | Spur route | |
Iowa 244 | 0.771 | 1.241 | I-80 near Neola | Iowa 191 in Neola | 1980 | 2003 | ||
Iowa 246 | 3.2 | 5.1 | US 61 in Zwingle | La Motte | 1931 | 1980 | Spur route | |
Iowa 248 | 1.0 | 1.6 | Independence State Hospital | US 20 in Independence | 1931 | 1980 | Hospital access road | |
Iowa 249 | 0.665 | 1.070 | Iowa 78 near Winfield | Winfield | 1931 | 2003 | Spur route | |
Iowa 250 | 0.6 | 0.97 | Lakota | US 169 / Iowa 9 near Lakota | 1932 | 1980 | Spur route | |
Iowa 251 | 1.7 | 2.7 | St. Charles | I-35 near St. Charles | 1932 | 1980 | Spur route | |
Iowa 252 | 0.584 | 0.940 | US 61 / Iowa 92 near Grandview | Grandview | 1932 | 2003 | Spur route | |
Iowa 253 | 0.932 | 1.500 | Iowa 14 near Williamson | Williamson | 1932 | 2003 | Spur route | |
Iowa 254 | 0.5 | 0.80 | Iowa 92 at Massena | Massena | 1932 | 1968 | Spur route; became Iowa 322 | |
Iowa 254 | 7.9 | 12.7 | Iowa 9 near Buffalo Center | MN 254 near Rake | 1969 | 1980 | Spur route; formerly Iowa 322 | |
Iowa 255 | 2.1 | 3.4 | Orchard | US 218 near Orchard | 1932 | 1980 | Spur route | |
Iowa 256 | 0.8 | 1.3 | Iowa 17 near Corwith | Corwith | 1932 | 1980 | Spur route | |
Iowa 258 | 1.989 | 3.201 | I-35 near Van Wert | US 69 near Van Wert | 1933 | 2003 | ||
Iowa 259 | 1.001 | 1.611 | US 169 near Tingley | Tingley | 1953 | 2003 | Spur route | |
Iowa 262 | 1.7 | 2.7 | US 69 near Galt | Galt | 1933 | 1980 | Spur route | |
Iowa 263 | 2.0 | 3.2 | Coulter | Latimer | 1933 | 1980 | Double spur route with Iowa 3 | |
Iowa 263 | 12.511 | 20.135 | Iowa 14 in Grundy County | US 20 near Cedar Falls | 2000 | 2003 | Former section of US 20 | |
Iowa 264 | 2.4 | 3.9 | Linn Grove | Iowa 10 near Linn Grove | 1933 | 1980 | Spur route | |
Iowa 266 | 1.709 | 2.750 | US 69 near Weldon | Weldon | 1934 | 2003 | Spur route | |
Iowa 267 | 1.1 | 1.8 | Iowa 93 near Randalia | Randalia | 1934 | 1980 | Spur route | |
Iowa 269 | 3.0 | 4.8 | Iowa 16 near Stockport | Stockport | 1934 | 1980 | Spur route | |
Iowa 270 | 1.8 | 2.9 | Iowa 16 near Hillsboro | Hillsboro | 1934 | 1980 | Spur route | |
Iowa 271 | 0.8 | 1.3 | Iowa 4 near Yale | Yale | 1935 | 1980 | Spur route | |
Iowa 273 | 10.025 | 16.134 | Lake Wapello State Park | US 63 near Drakesville | 1935 | 2003 | Park access road | |
Iowa 276 | 4.711 | 7.582 | Spirit Lake city limits | Minnesota state line | 1934 | 2003 | Park access road | |
Iowa 277 | 6.3 | 10.1 | Numa | Iowa 5 near Centerville | 1935 | 1980 | Spur route | |
Iowa 278 | 2.1 | 3.4 | Rathbun | Iowa 5 near Rathbun | 1935 | 1980 | Spur route | |
Iowa 279 | 1.983 | 3.191 | US 30 / US 218 near Atkins | Atkins | 1935 | 2003 | Spur route | |
Iowa 281 | 28.166 | 45.329 | Waterloo city limits | Iowa 150 at Oelwein | 1935 | current | ||
Iowa 282 | 5.283 | 8.502 | Quasqueton | Iowa 939 near Winthrop | 1935 | 2003 | Spur route | |
Iowa 284 | 5.5 | 8.9 | Aurora | Iowa 187 at Lamont | 1935 | 1980 | Spur route | |
Iowa 285 | 0.796 | 1.281 | US 30 in Arcadia | Arcadia | 1935 | 2003 | Spur route | |
Iowa 286 | 9.932 | 15.984 | US 30 in Glidden | Lanesboro | 1935 | 2003 | Spur route | |
Iowa 287 | 1.833 | 2.950 | US 30 / US 218 near Newhall | Newhall | 1965 | 2003 | Spur route | |
Iowa 288 | 4.6 | 7.4 | US 65 near Manly | Plymouth | 1935 | 1980 | Spur route | |
Iowa 289 | 6.0 | 9.7 | Alta Vista | US 63 near Lourdes | 1935 | 1980 | Spur route | |
Iowa 290 | 2.0 | 3.2 | Farmersburg | Iowa 13 near Farmersburg | 1935 | 1980 | Spur route | |
Iowa 292 | 3.2 | 5.1 | Linden | Iowa 44 | 1935 | 1980 | Spur route | |
Iowa 293 | 1.4 | 2.3 | Iowa 90 near Van Meter | Van Meter | 1935 | 1980 | Spur route | |
Iowa 294 | 6.147 | 9.893 | Iowa 2 in Decatur County | Grand River | 1935 | 2003 | Spur route | |
Iowa 295 | 5.0 | 8.0 | Westgate | Iowa 150 near Maynard | 1935 | 1980 | Spur route | |
Iowa 296 | 5.0 | 8.0 | CR C24 near Wadena | Iowa 56 near Wadena | 1935 | 1980 | Spur route | |
Iowa 297 | 3.543 | 5.702 | Gilbertville | Raymond | 1940 | 2003 | Double spur with I-380 | |
Iowa 299 | 5.556 | 8.942 | New Providence | Iowa 175 near Eldora | — | 2003 | Spur route | |
Iowa 300 | 1.411 | 2.271 | Modale | I-29 near Modale | 1935 | 2003 | Spur route | |
Iowa 301 | 2.045 | 3.291 | I-29 near Little Sioux | Little Sioux | 1935 | 2003 | Spur route | |
Iowa 302 | 3.0 | 4.8 | Thor | Iowa 3 near Thor | 1935 | 1980 | Spur route | |
Iowa 304 | 1.6 | 2.6 | Iowa 78 near Ollie | Ollie | 1935 | 1980 | Spur route | |
Iowa 305 | 2.554 | 4.110 | Letts | US 61 / Iowa 92 near Letts | 1935 | 2003 | Spur route | |
Iowa 306 | 0.783 | 1.260 | US 65 near Derby | Derby | 1935 | 2003 | Spur route | |
Iowa 309 | 2.3 | 3.7 | Beacon | Iowa 137 in Oskaloosa | 1935 | 1980 | Spur route | |
Iowa 312 | 5.5 | 8.9 | Iowa 9 near Riceville | McIntire | 1935 | 1980 | Spur route | |
Iowa 314 | 6.277 | 10.102 | Ayrshire | US 18 near Ruthven | 1935 | 2003 | Spur route | |
Iowa 315 | 4.158 | 6.692 | Iowa 4 near Palmer | Palmer | 1935 | 2003 | Spur route | |
Iowa 316 | 5.183 | 8.341 | Iowa 5 near Swan | Runnells city limits | 1935 | current | Spur route | |
Iowa 317 | 0.7 | 1.1 | US 65 near Zearing | Zearing | 1935 | 1980 | Spur route | |
Iowa 318 | 5.5 | 8.9 | Clutier | Iowa 21 near Clutier | 1935 | 1980 | Spur route | |
Iowa 319 | 0.4 | 0.64 | Gravity | Iowa 148 at Gravity | 1935 | 1980 | Spur route | |
Iowa 322 | 7.9 | 12.7 | Iowa 9 near Buffalo Center | MN 254 near Rake | 1935 | 1968 | Spur route; became Iowa 254 | |
Iowa 322 | 0.5 | 0.80 | Iowa 92 at Massena | Massena | 1969 | 1972 | Spur route; formerly Iowa 254 | |
Iowa 322 | 2.660 | 4.281 | Pammel State Park | Iowa 92 in Madison County | 1982 | 2003 | Park access road; formerly Iowa 162 | |
Iowa 323 | 3.8 | 6.1 | Iowa 17 near Woolstock | Woolstock | 1935 | 1980 | Spur route | |
Iowa 324 | 0.510 | 0.821 | Iowa 175 near Onawa | Lewis and Clark State Park | 1956 | 2003 | Park access road | |
Iowa 325 | 3.617 | 5.821 | Spillville | US 52 near Calmar | 1935 | 2003 | Spur route | |
Iowa 327 | 2.070 | 3.331 | Iowa 276 in Spirit Lake | near Orleans | 1935 | 2003 | Spur route | |
Iowa 328 | 2.3 | 3.7 | US 20 near Galva | Galva | 1935 | 1980 | Spur route | |
Iowa 329 | 4.8 | 7.7 | US 169 at Boxholm | Pilot Mound | 1935 | 1980 | Spur route | |
Iowa 330 | 47.748 | 76.843 | I-80 / US 6 / US 65 at Altoona | Iowa 14 near Albion | 1969 | current | ||
Iowa 331 | 1.5 | 2.4 | Eldridge | US 61 near Eldridge | 1935 | 1967 | Spur route | |
Iowa 332 | 1.0 | 1.6 | Pilot Knob State Park | Iowa 9 near Forest City | 1935 | 1980 | Park access road | |
Iowa 333 | 1.558 | 2.507 | I-29 at Hamburg | US 275 in Hamburg | 1935 | current | ||
Iowa 334 | 1.8 | 2.9 | US 63 near Frederika | Frederika | 1935 | 1980 | Spur route | |
Iowa 335 | 0.6 | 0.97 | Iowa 141 near Dawson | Dawson | 1935 | 1980 | Spur route | |
Iowa 336 | 2.4 | 3.9 | Iowa 150 near Rowley | Rowley | 1936 | 1980 | Spur route | |
Iowa 337 | 3.4 | 5.5 | Iowa 9 near Grafton | Grafton | 1936 | 1980 | Spur route | |
Iowa 340 | 2.231 | 3.590 | Pikes Peak State Park | Iowa 76 in McGregor | 1936 | 2003 | Park access road | |
Iowa 342 | 0.9 | 1.4 | Iowa 141 near Jamaica | Jamaica | 1936 | 1980 | Spur route | |
Iowa 343 | 1.0 | 1.6 | Iowa 333 near Northboro | Northboro | 1937 | 1980 | Spur route | |
Iowa 346 | 12.470 | 20.069 | US 218 / Iowa 27 at Nashua | US 18 / US 63 near New Hampton | 1937 | current | ||
Iowa 347 | 0.8 | 1.3 | Locust Street at Omaha, Neb. | Locust Street at Omaha, Neb. | 1937 | 1986 | ||
Iowa 349 | 1.032 | 1.661 | Lake Ahquabi State Park | US 65 / US 69 near Indianola | 1938 | 2003 | Park access road | |
Iowa 353 | 0.4 | 0.64 | Rowan | Iowa 3 at Rowan | 1938 | 1980 | Spur route | |
Iowa 356 | 0.949 | 1.527 | Milford | West Okoboji | 2000 | 2003 | Former section of US 71 | |
Iowa 358 | 1.5 | 2.4 | Whittemore | US 18 / Iowa 15 near Whittemore | 1938 | 1980 | Spur route | |
Iowa 359 | 7.383 | 11.882 | Buckeye | Iowa 941 in Alden | 1938 | 2003 | Spur route | |
Iowa 362 | 1.1 | 1.8 | Macedonia | US 59 near Macedonia | 1938 | 1980 | Spur route | |
Iowa 362 | 5.469 | 8.802 | DeSoto National Wildlife Refuge | I-29 at Loveland | 1980 | 2003 | Park access road | |
Iowa 363 | 1.616 | 2.601 | Iowa 150 near Urbana | I-380 / Iowa 27 in Urbana | 1939 | 2003 | Spur route; number approved 1938 | |
Iowa 364 | 6.140 | 9.881 | Iowa 76 near Waukon Junction | Harpers Ferry | 1938 | 2003 | Spur route | |
Iowa 365 | 1.1 | 1.8 | Tracy | Iowa 92 near Tracy | 1939 | 1980 | Spur route | |
Iowa 367 | 3.4 | 5.5 | Rutland | US 169 near Humboldt | 1942 | 1980 | Spur route | |
Iowa 369 | 5.6 | 9.0 | Iowa 2 near Moulton | Unionville | 1942 | 1980 | Spur route | |
Iowa 370 | 3.265 | 5.255 | N-370 at Bellevue, Neb. | I-29 / US 275 near Council Bluffs | 1953 | 2014 | ||
Iowa 371 | 0.715 | 1.151 | Lake Keomah State Park | Iowa 92 near Keomah Village | 1939 | 2003 | Park access road | |
Iowa 374 | 8.0 | 12.9 | US 71 near Sioux Rapids | Webb | 1942 | 1980 | Spur route | |
Iowa 376 | 10.334 | 16.631 | I-129 / US 20 / US 75 at Sioux City | US 75 at Sioux City | 2001 | current | US 75 Business in Sioux City | |
Iowa 377 | 0.5 | 0.80 | Harbor Drive in Sioux City | US 75 in Sergeant Bluff | 1942 | 1980 | Airport access road; one unsigned section was maintained until 2003 | |
Iowa 379 | 4.6 | 7.4 | Joice | Iowa 105 near Lake Mills | 1942 | 1980 | Spur route | |
Iowa 381 | 0.7 | 1.1 | Iowa 254 near Rake | Rake | 1954 | 1980 | Spur route | |
Iowa 382 | 4.792 | 7.712 | Lake MacBride State Park | Iowa 1 in Solon | 1943 | 2003 | Park access road | |
Iowa 383 | 1.311 | 2.110 | US 69 near Randall | Randall | 1944 | 2003 | Spur route | |
Iowa 384 | 1.231 | 1.981 | Iowa 25 in Guthrie County | Springbrook State Park | 1944 | 2003 | Park access road | |
Iowa 385 | 3.151 | 5.071 | Pacific Junction | US 34 / US 275 in Glenwood | 1945 | 2003 | Spur route | |
Iowa 386 | 2.685 | 4.321 | US 52 / Iowa 3 near Sageville | US 52 / Iowa 3 / Iowa 32 near Dubuque | 1946 | 2003 | ||
Iowa 387 | 1 | 1.6 | Davenport Municipal Airport | US 61 3 miles north of Davenport | 1951 | 1979 | Spur route | |
Iowa 388 | 0.3 | 0.48 | Calumet | US 59 at Calumet | 1946 | 1980 | Spur route | |
Iowa 390 | 2.113 | 3.401 | South of Plainfield | North of Plainfield | — | 2003 | Former section of US 218 | |
Iowa 393 | 2.3 | 3.7 | Ionia | US 18 near Ionia | 1948 | 1980 | Spur route | |
Iowa 394 | 1.9 | 3.1 | Iowa 2 near Denmark | Iowa Army Ammunition Plant southern entrance | 1948 | 1980 | Spur route | |
Iowa 394 | 10.454 | 16.824 | Route B at St. Francisville, Mo. | US 218 near Donnellson | 1980 | 2005 | Replaced by Iowa 27 | |
Iowa 396 | 0.7 | 1.1 | Iowa 175 near Farnhamville | Farnhamville | 1954 | 1980 | Spur route | |
Iowa 398 | 1.1 | 1.8 | Brooklyn | US 6 near Brooklyn | 1956 | 1980 | Spur route | |
Iowa 400 | 4.5 | 7.2 | Truro | I-35 near Truro | 1957 | 1980 | Spur route; not completed until 1958 | |
Iowa 402 | 20.9 | 33.6 | Iowa 8 near Dysart | Iowa 412 in Waterloo | 1957 | 1968 | Replaced by Iowa 21 | |
Iowa 403 | 0.7 | 1.1 | Cushing | US 20 near Cushing | 1958 | 1980 | Spur route | |
Iowa 403 | 0.477 | 0.768 | SD 48 near Akron | Iowa 12 in Akron | 1980 | 2003 | ||
Iowa 404 | 1.4 | 2.3 | Montrose | US 61 near Montrose | 1980 | 2003 | Spur route | |
Iowa 404 | 1.629 | 2.622 | Iowa 3 in Le Mars | US 75 at Le Mars | 2006 | current | Section of US 75 Business in Le Mars | |
Iowa 405 | 0.249 | 0.401 | Lone Tree | Iowa 22 near Lone Tree | 1958 | 2003 | Spur route | |
Iowa 406 | 2.275 | 3.661 | US 34 near West Burlington | Burlington | 1957 | 2003 | Spur route | |
Iowa 407 | 0.5 | 0.80 | Iowa 99 in Oakville | Oakville | 1957 | 1967 | Former Iowa 7; spur route | |
Iowa 408 | 7.3 | 11.7 | US 169 near Lu Verne | Lu Verne | 1957 | 1980 | Spur route | |
Iowa 410 | 2.157 | 3.471 | Backbone State Park | Iowa 3 / Iowa 13 near Strawberry Point | 1958 | 2003 | Park access road | |
Iowa 411 | 1.5 | 2.4 | US 6 at Marengo | CR F15 north of Marengo | 1957 | 1966 | Spur route | |
Iowa 412 | 4.6 | 7.4 | US 63 in Waterloo | US 218 in Waterloo | 1960 | 1983 | Former US 20 | |
Iowa 413 | 7.9 | 12.7 | US 20 in Fort Dodge | Iowa 320 near Badger | 1960 | 1980 | Spur route | |
Iowa 415 | 16.857 | 27.129 | US 6 in Des Moines | Iowa 141 near Granger | 1959 | current | ||
Iowa 417 | 9 | 14 | US 67 near Riverdale | US 67 near LeClaire | 1960 | 1969 | Former section of US 67 | |
Iowa 419 | 1.038 | 1.670 | Victor | US 6 / Iowa 21 near Victor | 1962 | 2003 | Spur route | |
Iowa 424 | 0.8 | 1.3 | Iowa 111 in Britt | US 18 near Britt | 1961 | 1980 | Spur route | |
Iowa 424 | 2.802 | 4.509 | South of Swedesburg | US 218 near Olds | 1999 | 2003 | Former section of US 218 | |
Iowa 428 | — | — | Anamosa | US 151 near Anamosa | 1965 | 1980 | Spur route | |
Iowa 428 | 6.140 | 9.881 | Maquoketa Caves State Park | US 61 near Maquoketa | 1980 | 2003 | Park access road | |
Iowa 438 | 1.052 | 1.693 | US 34 / Iowa 163 at Mount Pleasant | US 218 / Iowa 27 at Mount Pleasant | 2003 | current | Section of US 218 Business in Mount Pleasant | |
Iowa 461 | 10.750 | 17.300 | I-280 / US 61 at Davenport | I-80 / US 61 at Davenport | 2010 | current | US 61 Business in Davenport | |
Iowa 471 | 11.160 | 17.960 | Iowa 175 near Lake View | US 20 / US 71 near Early | 2015 | current | Former US 71 in Sac County | |
Iowa 478 | 0.755 | 1.215 | Iowa 24 in New Hampton | North of New Hampton | 2002 | 2003 | Former section of US 63 | |
Iowa 904 | 4.737 | 7.623 | US 34 / Iowa 163 west of Fairfield | US 34 / Iowa 163 east of Fairfield | 2008 | 2011 | US 34 Business at Fairfield, did not count mileage within Fairfield city limits | |
Iowa 906 | 4.009 | 6.452 | Iowa 192 in Council Bluffs | I-80 / US 6 near Council Bluffs | 2016 | current | Former US 6 through Council Bluffs | |
Iowa 916 | 1.293 | 2.081 | Iowa 281 in Oelwein | Oelwein | 1986 | 2003 | Former section of Iowa 150 | |
Iowa 920 | 12.560 | 20.213 | Center Point | Iowa 150 near Urbana | 1984 | 2003 | Former section of Iowa 150 | |
Iowa 922 | 8.862 | 14.262 | US 151 at Cedar Rapids | Iowa 100 in Cedar Rapids | 1985 | current | US 151 Business in Cedar Rapids | |
Iowa 925 | 26.259 | 42.260 | I-80 / US 6 in Adair | US 6 near Dexter | 1981 | 2003 | Former section of US 6 | |
Iowa 926 | 3.147 | 5.065 | US 169 / US 20 Bus at Fort Dodge | US 169 at Fort Dodge | 1990 | 2014 | ||
Iowa 927 | 19.017 | 30.605 | US 6 / Iowa 38 in Wilton | I-280 / US 6 near Davenport | 1981 | 2003 | Former section of US 6 | |
Iowa 928 | 20.168 | 32.457 | Iowa 17 near Webster City | CR D20 near Williams | 1980 | 2003 | Former section of US 20 | |
Iowa 929 | 0.789 | 1.270 | Murray city limits | Maple Street in Murray | 1980 | 2003 | Former section of Iowa 152 | |
Iowa 930 | 1.738 | 2.797 | US 30 near Ames | Boone–Story county line | 1972 | current | Unsigned highway | |
Iowa 931 | 8.962 | 14.423 | I-35 in Ankeny | US 65 in Polk County | 1980 | 2003 | ||
Iowa 934 | 4.881 | 7.855 | Iowa 58 in Cedar Falls | US 63 in Waterloo | 1998 | 2016 | Was an unsigned highway | |
Iowa 939 | 18.931 | 30.466 | Iowa 187 near Masonville | Black Hawk–Buchanan county line | 1980 | 2003 | Former section of US 20 | |
Iowa 940 | 0.081 | 0.130 | Tama–Benton county line near Belle Plaine | Iowa 21 near Belle Plaine | 1981 | 2003 | ||
Iowa 941 | 12.953 | 20.846 | I-35 near Williams | Iowa Falls city limits | 1991 | 2003 | Former section of US 20 | |
Iowa 942 | 0.466 | 0.750 | Vine Street in Woodburn | Woodburn city limits | 1980 | 2003 | Former section of Iowa 104 | |
Iowa 944 | 0.553 | 0.890 | US 61 / Iowa 2 in Fort Madison | Fort Madison city limits | 1980 | 2003 | Former section of Iowa 88 | |
Iowa 945 | 4.599 | 7.401 | I-80 near Altoona | Iowa 931 in Polk County | 1980 | 2003 | ||
Iowa 946 | 0.927 | 1.492 | US 52 / US 61 / US 151 in Dubuque | US 52 / US 61 / US 151 in Dubuque | 1991 | current | Provides direct access between US 20 and US 52 / US 61 / US 151 | |
Iowa 949 | 2.275 | 3.661 | Glenwood city limits | US 34 / US 275 near Glenwood | 1974 | 2003 | Former US 34 Business | |
Iowa 952 | 0.112 | 0.180 | US 151 near Cascade | Reiter Road near Cascade | 1992 | 2003 | Former section of US 151 | |
Iowa 954 | 0.773 | 1.244 | US 61 near Maquoketa | Maquoketa city limits | 1967 | 2003 | Former section of US 61 | |
Iowa 955 | 0.727 | 1.170 | US 61 near Key West | Military Road in Key West | 1976 | 2003 | Former section of US 61 | |
Iowa 956 | 16.776 | 26.998 | CR F55 at Davenport | US 61 north of DeWitt | 1976 | 2003 | Former section of US 61 | |
Iowa 961 | 3.613 | 5.815 | Iowa 2 in Fort Madison | US 61 at Fort Madison | 2011 | 2013 | Section of US 61 Business in Fort Madison | |
Iowa 963 | 4.139 | 6.661 | US 151 near Key West | US 61 / US 151 in Dubuque | 1971 | 2003 | Former section of US 151 and US 61 | |
Iowa 965 | 0.519 | 0.835 | US 6 in Coralville | I-80 in Coralville | 1985 | current | ||
Iowa 967 | 0.037 | 0.060 | US 20 near Farley | Farley city limits | 1976 | 2003 | Former section of US 20 | |
Iowa 977 | 2.007 | 3.230 | US 59 in Cherokee | Iowa 3 near Cherokee | 1964 | 2003 | ||
Iowa 978 | 2.772 | 4.461 | I-29 / US 34 near Glenwood | Iowa 385 near Pacific Junction | 1974 | 2003 | Former section of US 34 | |
Iowa 982 | 27.787 | 44.719 | Smithland city limits | Sioux City city limits | 1961 | 2003 | Former section of Iowa 141 | |
Iowa 985 | 1.927 | 3.101 | US 52 near Bellevue State Park | US 52 near Bellevue | 1980 | 2003 | Park access road | |
Iowa 988 | 2.312 | 3.721 | I-29 / I-680 near Crescent | Iowa 183 in Crescent | 1975 | 2003 | ||
|
References
- ^ 2012 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2012. Retrieved November 6, 2013.
- ^ a b c d e f g h "U.S. Road Markers Soon to Replace Familiar Primary Road Signs on U.S. System in Iowa". Service Bulletin Oct–Nov–Dec 1925. XIII (10–11–12). Iowa State Highway Commission: 3. 1925.