List of state highways in Iowa

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alt1=Primary Road 6 route markeralt2=1926 Iowa 16 route markeralt3=1961 Iowa 136 route marker route markeralt4=Iowa 330 route marker
Highway markers from different years
Highway names
Interstates: Interstate nn (I-nn)
US Highways: U.S. Highway nn (US nn)
State: Iowa 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 Missouri state line near Lamoni Minnesota state line near Northwood 01920-01-011920 01926-01-011926 Jefferson Highway through Iowa; became US 65
Iowa 1 119.268 191.943 Iowa 2 south of Keosauqua US 151 south of Anamosa 01926-01-011926 current
Iowa 2 232 373 US 6 near Lewis IL 2 at Muscatine 01920-01-011920 01939-01-011939 Became Iowa 92
Iowa 2 251.376 404.550 N-2 at Nebraska City, Neb. US 61 at Fort Madison 01940-01-011940 current
Iowa 3 264 425 N-2 at Nebraska City, Neb. IL 9 at Fort Madison 01920-01-011920 01939-01-011939 Became Iowa 2
Iowa 3 326.163 524.908 SD 50 near Westfield US 52 / US 61 / US 151 in Dubuque 01945-01-011945 current
Iowa 4 24 39 US 59 / Iowa 141 at Denison Iowa 175 at Odebolt 01920-01-011920 01968-01-011968 Became Iowa 39
Iowa 4 146.343 235.516 Iowa 44 in Panora MN 4 near Estherville 01969-01-011969 current
Iowa 5 74 119 Iowa 3 near Aurelia US 169 at Fort Dodge 01920-01-011920 01968-01-011968 Became Iowa 7
Iowa 5 103.540 166.631 Route 5 south of Cincinnati I-35 near West Des Moines 01969-01-011969 current
No. 6 358 576 Nebraska state line at Council Bluffs Illinois state line at Clinton 01920-01-011920 01926-01-011926 Lincoln Highway through Iowa
Iowa 6 101 163 Missouri state line near Cincinnati US 63 in Des Moines 01926-01-011926 01931-01-011931 Became Iowa 60 due to extension of US 6
Iowa 7 140 225 US 6 at Council Bluffs City US 6 in Des Moines 01920-01-011920 01939-01-011939 Became Iowa 64
Iowa 7 0.5 0.8 Iowa 99 in Oakville Oakville 01955-01-011955 01957-01-011957
Iowa 7 22 35 I-29 / US 77 in Sioux City Iowa 3 near Brunsville 01957-01-011957 01968-01-011968
Iowa 7 73.661 118.546 Iowa 3 near Aurelia US 169 at Fort Dodge 01969-01-011969 current
No. 8 Nebraska state line at Council Bluffs Illinois state line at Burlington 01920-01-011920 01926-01-011926 Became US 34
Iowa 8 13.961 22.468 US 63 in Traer US 218 near Garrison 01926-01-011926 current
Iowa 9 295.088 474.898 SD 42 near Larchwood WIS 82 at Lansing 01920-01-011920 current
Iowa 10 104.512 168.196 SD 46 near Hawarden Iowa 4 at Havelock 01920-01-011920 current
Iowa 11 98 158 US 151 / Iowa 64 in Cedar Rapids US 52 / Iowa 24 in Calmar 01920-01-011920 01941-01-011941 Became Iowa 150
Iowa 12 46.274 74.471 US 20 / US 75 at Sioux City Iowa 10 in Hawarden 01920-01-011920 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 01920-01-011920 current
Iowa 14 187.838 302.296 Iowa 2 at Corydon US 18 / US 218 Bus in Charles City 01920-01-011920 current
Iowa 15 111 179 US 30 in Ames Minnesota state line near Lake Mills 01920-01-011920 01935-01-011935 Became US 69
Iowa 15 14 23 US 63 in Ottumwa Iowa 137 at Eddyville 01937-01-011937 01968-01-011968 Became Iowa 23
Iowa 15 4.655 7.491 Route 15 south of Milton Iowa 2 at Milton 01969-01-011969 02003-01-012003
Iowa 15 63.578 102.319 Iowa 3 near Pocahontas MN 15 near Armstrong 01969-01-011969 current
Iowa 16 Missouri state line near Redding Minnesota state line near Ledyard 01920-01-011920 01930-01-011930
Iowa 16 65.488 105.393 US 34 near Agency US 61 at Wever 01930-01-011930 current
Iowa 17 Iowa 64 in Panora MN 4 near Estherville 01920-01-011920 01968-01-011968
Iowa 17 102.789 165.423 Iowa 141 at Granger US 18 near Wesley 01969-01-011969 current
No. 18 Missouri state line at Braddyville No. 23 at Sac City 01920-01-011920 01926-01-011926 Became part of US 71
No. 19 South Dakota state line near Inwood Wisconsin state line at Lansing 01920-01-011920 01926-01-011926 Became US 18
Iowa 19 Backbone State Park Iowa 3 / Iowa 13 near Strawberry Point 01927-01-011927 01957-01-011957
No. 20 Missouri state line at Keokuk Minnesota state line near Cresco 01920-01-011920 01926-01-011926 Became parts of US 61 and US 55
Iowa 21 Iowa 141 near Denison Minnesota state line near Allendorf 01920-01-011920 01934-01-011934
Iowa 21 97.152 156.351 Iowa 149 near Hedrick US 20 / Iowa 27 at Waterloo 01934-01-011934 current
No. 22 Nebraska state line at Sioux City Minnesota state line near Rock Rapids 01920-01-011920 01926-01-011926 Became part of US 75
Iowa 22 97.905 157.563 Iowa 21 near Thornburg US 61 at Davenport 01926-01-011926 current
No. 23 South Dakota state line at Sioux City No. 5 in Fort Dodge 01920-01-011920 01926-01-011926 Became part of US 20
Iowa 23 Route 15 south of Milton Iowa 2 at Milton 01926-01-011926 01968-01-011968
Iowa 23 14.316 23.039 US 63 in Ottumwa Iowa 137 at Eddyville 01969-01-011969 01997-01-011997 Replaced by US 63 and county roads
Iowa 23 16.022 25.785 Iowa 92 at Oskaloosa Iowa 149 near Fremont 01997-01-011997 current
Iowa 24 27.546 44.331 US 18 / US 63 in New Hampton US 52 / Iowa 150 in Calmar 01928-01-011928 current
Iowa 25 103.419 166.437 Iowa 2 near Benton US 30 near Scranton 01926-01-011926 current
Iowa 26 11.370 18.298 Iowa 9 in Lansing MN 26 at New Albin 01969-01-011969 current

Iowa 27
281.689 453.335 Route 27 near Wayland, Mo. I-35 at the Minnesota state line 02001-01-012001 current Avenue of the Saints
Iowa 28 21.613 34.783 Iowa 92 at Martensdale I-35 / I-80 at Johnston 01926-01-011926 current
Iowa 31 38.504 61.966 US 59 near Quimby Iowa 141 near Smithland 01920-01-011920 current
Iowa 32 5.101 8.209 US 20 at Dubuque US 52 / Iowa 3 at Sageville 01995-01-011995 02017-01-012017
Iowa 36 2.983 4.801 Wall Lake US 71 near Wall Lake 01920-01-011920 02003-01-012003 Spur route
Iowa 37 40.321 64.890 Iowa 175 near Turin US 59 near Earling 01920-01-011920 current
Iowa 38 98.941 159.230 US 61 Bus / Iowa 92 in Muscatine Iowa 3 near Edgewood 01920-01-011920 current
Iowa 39 24.321 39.141 US 59 at Denison Iowa 175 at Odebolt 01969-01-011969 current
Iowa 40 3.524 5.671 Allerton Iowa 2 near Corydon 01926-01-011926 02003-01-012003 Spur route
Iowa 41 1.827 2.940 Malvern US 34 near Malvern 01920-01-011920 02003-01-012003 Spur route
Iowa 44 104.524 168.215 US 30 near Logan Iowa 141 at Grimes 01969-01-011969 current
Iowa 45 1.324 2.131 Manilla Iowa 141 near Manilla 01920-01-011920 02003-01-012003 Spur route
Iowa 48 47.919 77.118 US 59 at Shenandoah US 6 near Lewis 01920-01-011920 current
Iowa 49 27.228 43.819 Iowa 2 in Bedford US 34 in Adams County 01920-01-011920 02003-01-012003  
Iowa 50 7.135 11.483 US 169 near Lehigh Lehigh 01920-01-011920 02003-01-012003 Spur route
Iowa 51 11.007 17.714 US 18 / US 52 at Postville Iowa 9 near Waukon 01920-01-011920 current
Iowa 55 4.506 7.252 Seymour Iowa 2 near Promise City 01934-01-011934 02003-01-012003 Spur route
Iowa 56 24.432 39.319 Iowa 150 at West Union Iowa 13 at Elkader 01920-01-011920 current
Iowa 57 43.765 70.433 US 65 near Iowa Falls US 218 / Iowa 27 / Iowa 58 at Cedar Falls 01986-01-011986 current
Iowa 58 12.030 19.360 US 63 at Hudson US 218 / Iowa 27 / Iowa 57 at Cedar Falls 01920-01-011920 current
Iowa 60 223.8 360.2 Route 5 south of Cincinnati US 18 near Wesley 01920-01-011920 01968-01-011968 Replaced by Iowa 5 and Iowa 17
Iowa 60 58.771 94.583 US 75 at Le Mars MN 60 at Bigelow, Minn. 01969-01-011969 current
Iowa 62 19.633 31.596 Iowa 64 at Maquoketa US 52 in Bellevue 01920-01-011920 current
Iowa 64 64.355 103.569 US 151 at Anamosa US 52 / IL 64 at Savanna, Ill. 01936-01-011936 current
Iowa 66 7.011 11.283 Iowa 2 near Diagonal Diagonal 02003-01-012003 Spur route
Iowa 68 1.933 3.111 Melrose US 34 near Melrose 02003-01-012003 Spur route
Iowa 70 23.954 38.550 Iowa 92 at Columbus Junction US 6 in West Liberty 01969-01-011969 current
Iowa 76 48.911 78.715 US 18 near McGregor MN 76 near Eitzen, Minn. 01969-01-011969 current
Iowa 77 2.685 4.321 Iowa 92 near Keota Keota 02003-01-012003 Spur route
Iowa 78 58.429 94.032 Iowa 149 near Martinsburg US 61 near Morning Sun 01920-01-011920 current
Iowa 79 5.637 9.072 Geode State Park US 34 in Middletown 01980-01-011980 02003-01-012003 Park access road
Iowa 81 2.215 3.565 Route 81 near Farmington Iowa 2 near Farmington 01969-01-011969 current
Iowa 82 3.773 6.072 Blairstown US 30 near Blairstown 02003-01-012003 Spur route
Iowa 83 34.191 55.025 US 59 in Avoca Iowa 148 in Anita 01920-01-011920 current
Iowa 85 8.408 13.531 Montezuma city limits Iowa 21 near Deep River 01920-01-011920 current
Iowa 86 12.519 20.147 US 71 near Milford MN 86 near Spirit Lake 01981-01-011981 current
Iowa 91 4.643 7.472 Iowa 9 in Lyon County MN 91 at the Minnesota state line 01980-01-011980 02003-01-012003  
Iowa 92 274.231 441.332 US 275 / N-92 in Council Bluffs IL 92 at Muscatine 01939-01-011939 current
Iowa 93 29.534 47.530 US 63 near Tripoli Iowa 150 in Fayette 01920-01-011920 current
Iowa 94 11.168 17.973 US 151 Business in Cedar Rapids Palo 01966-01-011966 02003-01-012003 Spur route
Iowa 96 16.635 26.771 Iowa 14 near Gladbrook US 63 near Gladbrook 01920-01-011920 current
Iowa 97 1.532 2.466 Russell Russell 02003-01-012003 Spur route
Iowa 98 1.814 2.919 Leando Iowa 16 near Douds 01944-01-011944 current Spur route
Iowa 99 33.232 53.482 US 34 in Burlington US 61 in Wapello 01931-01-011931 02003-01-012003  
Iowa 100 8.285 13.333 Edgewood Road in Cedar Rapids US 151 / Iowa 13 near Marion 01984-01-011984 current
Iowa 101 15.56 25.04 US 218 in Vinton Iowa 150 north of Urbana 01920-01-011920 01984-01-011984 Replaced by a relocated Iowa 150
Iowa 102 0.501 0.806 New Sharon city limits US 63 / Iowa 146 in New Sharon 01980-01-011980 current Unsigned highway
Iowa 103 15.649 25.185 US 218 near Donnellson US 61 / Iowa 2 in Fort Madison 02003-01-012003  
Iowa 107 27.579 44.384 Iowa 3 near Alexander CR B35 near Clear Lake 01920-01-011920 02011-01-012011 All but parts in Meservey and Thornton removed in 2003
Iowa 109 1.268 2.041 Oxford US 6 near Oxford 02003-01-012003 Spur route
Iowa 110 14.789 23.801 US 20 at Schaller Iowa 7 at Storm Lake 01934-01-011934 current
Iowa 113 1.187 1.910 Iowa 64 near Spragueville Spragueville 01938-01-011938 02003-01-012003 Spur route
Iowa 115 1.237 1.991 US 34 near Stanton Viking Lake State Park 01980-01-011980 02003-01-012003 Park access road
Iowa 116 2.776 4.468 US 218 near Waverly Iowa 3 in Waverly 01998-01-011998 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 01936-01-011936 current
Iowa 122 12.264 19.737 I-35 / US 18 at Clear Lake Mason City city limits 01999-01-011999 current
Iowa 124 2.567 4.131 Iowa 4 in Calhoun County Twin Lakes State Park 01924-01-011924 02003-01-012003 Park access road
Iowa 127 15.985 25.725 I-29 near Mondamin US 30 in Logan 01924-01-011924 current
Iowa 128 6.982 11.236 Iowa 13 near Elkader US 52 near Garnavillo 01924-01-011924 current
Iowa 130 32.023 51.536 Iowa 38 in Tipton I-80 / US 61 at Davenport 01969-01-011969 current
Iowa 131 4.520 7.274 Iowa 21 in Belle Plaine US 30 near Belle Plaine 02003-01-012003 Part of the Lincoln Highway
Iowa 133 0.970 1.561 US 30 in Nevada Nevada 01963-01-011963 02003-01-012003 Spur route
Iowa 136 97.733 157.286 IL 136 at Clinton US 52 / Iowa 3 at Luxemburg 01926-01-011926 current
Iowa 137 14.526 23.377 Iowa 5 at Albia US 63 / Iowa 163 at Eddyville 01934-01-011934 current
Iowa 139 11.431 18.396 Iowa 9 near Cresco MN 139 near Harmony, Minn 01930-01-011930 current
Iowa 140 25.309 40.731 US 20 at Moville Iowa 3 at Remsen 01926-01-011926 current
Iowa 141 155.362 250.031 I-29 near Sloan I-35 / I-80 at Grimes 01926-01-011926 current
Iowa 142 20.901 33.637 Iowa 2 in Plano Iowa 5 near Moravia 02003-01-012003  
Iowa 143 12.049 19.391 Iowa 3 at Marcus Iowa 10 at Granville 01926-01-011926 current
Iowa 144 34.039 54.780 Iowa 141 at Perry Iowa 175 near Harcourt 01926-01-011926 current
Iowa 145 7.408 11.922 I-29 near Thurman US 275 near Sidney 02003-01-012003  
Iowa 146 42.735 68.775 US 63 / Iowa 102 in New Sharon US 30 in Le Grand 01926-01-011926 current
Iowa 147 6.706 10.792 Rockford Iowa 14 in Floyd County 02003-01-012003 Spur route
Iowa 148 66.828 107.549 Route 148 near Bedford I-80 / US 6 near Anita 01926-01-011926 current
Iowa 149 65.897 106.051 US 34 in Ottumwa I-80 near Williamsburg 01926-01-011926 current
Iowa 150 85.093 136.944 US 218 at Vinton US 52 / Iowa 24 at Calmar 01941-01-011941 current
Iowa 152 1.402 2.256 I-35 near Osceola US 69 at Osceola 01980-01-011980 02014-01-012014
Iowa 156 4.748 7.641 Iowa 5 near Marysville Bussey 02003-01-012003 Spur route
Iowa 157 1.032 1.661 US 63 near Lime Springs Lime Springs 02003-01-012003 Spur route
Iowa 160 2.446 3.936 Iowa 415 at Ankeny I-35 at Ankeny 01947-01-011947 current
Iowa 161 1.224 1.970 Iowa 141 at Dedham Iowa 141 near Dedham 02003-01-012003  
Iowa 163 166.270 267.586 US 69 in Des Moines US 34 at Burlington 01937-01-011937 current
Iowa 165 0.410 0.660 Abbott Drive at Omaha, Neb. Abbott Drive at Omaha, Neb. 01957-01-011957 current Only state highway west of the Missouri River
Iowa 173 14.680 23.625 Iowa 83 near Atlantic Iowa 44 at Kimballton 01930-01-011930 current
Iowa 175 221.367 356.256 N-51 at Decatur, Neb US 63 near Hudson 01930-01-011930 current
Iowa 181 9.596 15.443 Iowa 5 / Iowa 92 near Pleasantville Melcher-Dallas 02003-01-012003 Spur route
Iowa 182 9.051 14.566 US 18 in Inwood Iowa 9 near Larchwood 01969-01-011969 current
Iowa 183 29.952 48.203 Iowa 127 near Mondamin Iowa 141 in Ute 01930-01-011930 current
Iowa 187 28.385 45.681 US 20 near Masonville Iowa 150 near Fayette 01931-01-011931 current
Iowa 188 24.231 38.996 Iowa 3 near Clarksville US 63 near Tripoli 01945-01-011945 current
Iowa 191 22.790 36.677 I-680 near Neola Iowa 37 at Earling 01930-01-011930 current
Iowa 192 2.426 3.904 I-29 / I-80 at Council Bluffs Kanesville Boulevard in Council Bluffs 01980-01-011980 current Truncated in 2016
Iowa 193 10.852 17.465 US 18 in Fayette County Iowa 24 in Jackson Junction 02003-01-012003  
Iowa 195 2.896 4.661 Iowa 4 near Plover Plover 02003-01-012003 Spur route
Iowa 196 10.136 16.312 US 71 / Iowa 175 near Lake View US 20 near Sac City 01935-01-011935 02015-01-012015
Iowa 197 2.567 4.131 Iowa 3 near Albert City Albert City 02003-01-012003 Spur route
Iowa 198 2.231 3.590 Garrison US 218 near Garrison 02003-01-012003 Spur route
Iowa 199 2.666 4.291 Van Horne US 218 near Van Horne 02003-01-012003 Spur route
Iowa 200 2.163 3.481 US 30 near Keystone Keystone 02003-01-012003 Spur route
Iowa 201 4.755 7.652 Norway US 30 / US 218 near Atkins 02003-01-012003 Spur route
Iowa 202 10.461 16.835 Route 202 at Coatsville, Mo Iowa 2 near Moulton 01969-01-011969 current
Iowa 204 5.407 8.702 Iowa 2 near Garden Grove Garden Grove 02003-01-012003 Spur route
Iowa 205 2.927 4.711 US 65 near Milo Milo 02003-01-012003 Spur route
Iowa 206 6.221 10.012 US 65 near Liberty Center Liberty Center 02003-01-012003 Spur route
Iowa 207 3.058 4.921 I-35 near New Virginia New Virginia 02003-01-012003 Spur route
Iowa 209 0.5 0.8 Iowa 149 near Conroy Conroy 01931-01-011931 01975-01-011975 Spur route
Iowa 210 34.781 55.975 Iowa 141 near Woodward US 65 near Collins 01938-01-011938 current
Iowa 212 12.157 19.565 Iowa 21 near Belle Plaine US 6 at Marengo 01934-01-011934 current
Iowa 214 5.736 9.231 Iowa 175 near Ivester Wellsburg 02003-01-012003 Spur route
Iowa 215 8.738 14.062 Union Iowa 175 in Eldora 02003-01-012003 Spur route
Iowa 220 7.233 11.640 US 6 at South Amana US 151 at Amana 01930-01-011930 current
Iowa 221 3.909 6.291 I-35 near Story City Roland 02003-01-012003 Spur route
Iowa 224 10.587 17.038 US 6 near Kellogg Iowa 14 near Laurel 01930-01-011930 current
Iowa 225 7.688 12.373 Sully Iowa 146 in Searsboro 02003-01-012003 Spur route
Iowa 229 5.233 8.422 Garwin US 63 in Tama County 02003-01-012003 Spur route
Iowa 231 4.068 6.547 US 34 west of New London US 34 east of New London 02003-01-012003 Former section of US 34
Iowa 238 1.063 1.711 Iowa 9 near Harris Harris 02003-01-012003 Spur route
Iowa 239 0.510 0.821 Waubonsie State Park Iowa 2 in Fremont County 01931-01-011931 02003-01-012003 Park access road
Iowa 240 6.389 10.282 Royal US 71 in Clay County 02003-01-012003 Spur route
Iowa 242 5.855 9.423 US 34 in Mills County Silver City 02003-01-012003 Spur route
Iowa 243 0.559 0.900 Black Hawk Lake State Park US 71 / Iowa 175 near Wall Lake 01980-01-011980 02003-01-012003 Park access road
Iowa 244 0.771 1.241 I-80 near Neola Iowa 191 in Neola 02003-01-012003  
Iowa 249 0.665 1.070 Iowa 78 near Winfield Winfield 02003-01-012003 Spur route
Iowa 252 0.584 0.940 US 61 / Iowa 92 near Grandview Grandview 02003-01-012003 Spur route
Iowa 253 0.932 1.500 Iowa 14 near Williamson Williamson 02003-01-012003 Spur route
Iowa 258 1.989 3.201 I-35 near Van Wert US 69 near Van Wert 02003-01-012003  
Iowa 259 1.001 1.611 US 169 near Tingley Tingley 02003-01-012003 Spur route
Iowa 263 12.511 20.135 Iowa 14 in Grundy County US 20 near Cedar Falls 02003-01-012003 Former section of US 20
Iowa 266 1.709 2.750 US 69 near Weldon Weldon 02003-01-012003 Spur route
Iowa 273 10.025 16.134 Lake Wapello State Park US 63 near Drakesville 02003-01-012003 Park access road
Iowa 276 4.711 7.582 Spirit Lake city limits Minnesota state line 02003-01-012003 Park access road
Iowa 279 1.983 3.191 US 30 / US 218 near Atkins Atkins 02003-01-012003 Spur route
Iowa 281 28.166 45.329 Waterloo city limits Iowa 150 at Oelwein 01936-01-011936 current
Iowa 282 5.283 8.502 Quasqueton Iowa 939 near Winthrop 02003-01-012003 Spur route
Iowa 285 0.796 1.281 US 30 in Arcadia Arcadia 02003-01-012003 Spur route
Iowa 286 9.932 15.984 US 30 in Glidden Lanesboro 02003-01-012003 Spur route
Iowa 287 1.833 2.950 US 30 / US 218 near Newhall Newhall 02003-01-012003 Spur route
Iowa 294 6.147 9.893 Iowa 2 in Decatur County Grand River 02003-01-012003 Spur route
Iowa 297 3.543 5.702 Gilbertville Raymond 02003-01-012003 Double spur with I-380
Iowa 299 5.556 8.942 New Providence Iowa 175 near Eldora 02003-01-012003 Spur route
Iowa 300 1.411 2.271 Modale I-29 near Modale 02003-01-012003 Spur route
Iowa 301 2.045 3.291 I-29 near Little Sioux Little Sioux 02003-01-012003 Spur route
Iowa 305 2.554 4.110 Letts US 61 / Iowa 92 near Letts 02003-01-012003 Spur route
Iowa 306 0.783 1.260 US 65 near Derby Derby 02003-01-012003 Spur route
Iowa 314 6.277 10.102 Ayrshire US 18 near Ruthven 02003-01-012003 Spur route
Iowa 315 4.158 6.692 Iowa 4 near Palmer Palmer 02003-01-012003 Spur route
Iowa 316 5.183 8.341 Iowa 5 near Swan Runnells city limits 01935-01-011935 current Spur route
Iowa 322 2.660 4.281 Pammel State Park Iowa 92 in Madison County 02003-01-012003 Park access road
Iowa 324 0.510 0.821 Iowa 175 near Onawa Lewis and Clark State Park 02003-01-012003 Park access road
Iowa 325 3.617 5.821 Spillville US 52 near Calmar 02003-01-012003 Spur route
Iowa 327 2.070 3.331 Iowa 276 in Spirit Lake near Orleans 02003-01-012003 Spur route
Iowa 330 47.748 76.843 I-80 / US 6 / US 65 at Altoona Iowa 14 near Albion 01969-01-011969 current
Iowa 331 1.5 2.4 Eldridge US 61 near Eldridge 01935-01-011935 01967-01-011967 Spur route
Iowa 333 1.558 2.507 I-29 at Hamburg US 275 in Hamburg 01935-01-011935 current
Iowa 340 2.231 3.590 Pikes Peak State Park Iowa 76 in McGregor 01936-01-011936 02003-01-012003 Park access road
Iowa 346 12.470 20.069 US 218 / Iowa 27 at Nashua US 18 / US 63 near New Hampton 01937-01-011937 current
Iowa 347 0.8 1.3 Locust Street at Omaha, Neb. Locust Street at Omaha, Neb. 01937-01-011937 01986-01-011986
Iowa 349 1.032 1.661 Lake Ahquabi State Park US 65 / US 69 near Indianola 02003-01-012003 Park access road
Iowa 356 0.949 1.527 Milford West Okoboji 02003-01-012003 Former section of US 71
Iowa 359 7.383 11.882 Buckeye Iowa 941 in Alden 02003-01-012003 Spur route
Iowa 362 5.469 8.802 DeSoto National Wildlife Refuge I-29 at Loveland 02003-01-012003 Park access road
Iowa 363 1.616 2.601 Iowa 150 near Urbana I-380 / Iowa 27 in Urbana 02003-01-012003  
Iowa 364 6.140 9.881 Iowa 76 near Waukon Junction Harpers Ferry 02003-01-012003 Spur route
Iowa 370 3.265 5.255 N-370 at Bellevue, Neb. I-29 / US 275 near Council Bluffs 01953-01-011953 02014-01-012014
Iowa 371 0.715 1.151 Lake Keomah State Park Iowa 92 near Keomah Village 02003-01-012003 Park access road
Iowa 376 10.334 16.631 I-129 / US 20 / US 75 at Sioux City US 75 at Sioux City 02001-01-012001 current US 75 Business in Sioux City
Iowa 382 4.792 7.712 Lake MacBride State Park Iowa 1 in Solon 02003-01-012003 Park access road
Iowa 383 1.311 2.110 US 69 near Randall Randall 02003-01-012003 Spur route
Iowa 384 1.231 1.981 Iowa 25 in Guthrie County Springbrook State Park 01944-01-011944 02003-01-012003 Park access road
Iowa 385 3.151 5.071 Pacific Junction US 34 / US 275 in Glenwood 02003-01-012003 Spur route
Iowa 386 2.685 4.321 US 52 / Iowa 3 near Sageville US 52 / Iowa 3 / Iowa 32 near Dubuque 02003-01-012003  
Iowa 387 1 2 Davenport Municipal Airport US 61 3 miles north of Davenport 01953-01-011953 01978-01-011978 Spur route
Iowa 390 2.113 3.401 South of Plainfield North of Plainfield 02003-01-012003 Former section of US 218
Iowa 403 0.477 0.768 SD 48 near Akron Iowa 12 in Akron 01980-01-011980 02003-01-012003  
Iowa 404 1.629 2.622 Iowa 3 in Le Mars US 75 at Le Mars 02006-01-012006 current Section of US 75 Business in Le Mars
Iowa 405 0.249 0.401 Lone Tree Iowa 22 near Lone Tree 02003-01-012003 Spur route
Iowa 406 2.275 3.661 US 34 near West Burlington Burlington 02003-01-012003 Spur route
Iowa 410 2.157 3.471 Backbone State Park Iowa 3 / Iowa 13 near Strawberry Point 02003-01-012003 Park access road
Iowa 411 1.5 2.4 US 6 at Marengo CR F15 north of Marengo 01957-01-011957 01966-01-011966 Spur route
Iowa 415 16.857 27.129 US 6 in Des Moines Iowa 141 near Granger 01959-01-011959 current
Iowa 417 9 14 US 67 near Riverdale US 67 near LeClaire 01960-01-011960 01969-01-011969 Former section of US 67
Iowa 419 1.038 1.670 Victor US 6 / Iowa 21 near Victor 02003-01-012003 Spur route
Iowa 424 2.802 4.509 South of Swedesburg US 218 near Olds 02003-01-012003 Former section of US 218
Iowa 428 6.140 9.881 Maquoketa Caves State Park US 61 near Maquoketa 02003-01-012003 Park access road
Iowa 438 1.052 1.693 US 34 / Iowa 163 at Mount Pleasant US 218 / Iowa 27 at Mount Pleasant 02003-01-012003 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 02010-01-012010 current US 61 Business in Davenport
Iowa 471 11.160 17.960 Iowa 175 near Lake View US 20 / US 71 near Early 02015-01-012015 current Former US 71 in Sac County
Iowa 478 0.755 1.215 Iowa 24 in New Hampton North of New Hampton 02003-01-012003 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 02008-01-012008 02011-01-012011 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 02016-01-012016 current Former US 6 through Council Bluffs
Iowa 916 1.293 2.081 Iowa 281 in Oelwein Oelwein 02003-01-012003 Former section of Iowa 150
Iowa 920 12.560 20.213 Center Point Iowa 150 near Urbana 01984-01-011984 02003-01-012003 Former section of Iowa 150
Iowa 922 8.862 14.262 US 151 at Cedar Rapids Iowa 100 in Cedar Rapids 01985-01-011985 current US 151 Business in Cedar Rapids
Iowa 925 26.259 42.260 I-80 / US 6 in Adair US 6 near Dexter 01981-01-011981 02003-01-012003 Former section of US 6
Iowa 926 3.147 5.065 US 169 / US 20 Bus at Fort Dodge US 169 at Fort Dodge 01990-01-011990 02014-01-012014
Iowa 927 19.017 30.605 US 6 / Iowa 38 in Wilton I-280 / US 6 near Davenport 01981-01-011981 02003-01-012003 Former section of US 6
Iowa 928 20.168 32.457 Iowa 17 near Webster City CR D20 near Williams 02003-01-012003 Former section of US 20
Iowa 929 0.789 1.270 Murray city limits Maple Street in Murray 01980-01-011980 02003-01-012003 Former section of Iowa 152
Iowa 930 1.738 2.797 US 30 near Ames BooneStory county line 01972-01-011972 current Unsigned highway
Iowa 931 8.962 14.423 I-35 in Ankeny US 65 in Polk County 02003-01-012003  
Iowa 934 2.829 4.553 Cedar FallsWaterloo city limits US 63 in Waterloo 01998-01-011998 current Unsigned highway
Iowa 939 18.931 30.466 Iowa 187 near Masonville Black HawkBuchanan county line 02003-01-012003 Former section of US 20
Iowa 941 12.953 20.846 I-35 near Williams Iowa Falls city limits 02003-01-012003 Former section of US 20
Iowa 942 0.466 0.750 Vine Street in Woodburn Woodburn city limits 02003-01-012003 Former section of Iowa 104
Iowa 945 4.599 7.401 I-80 near Altoona Iowa 931 in Polk County 02003-01-012003  
Iowa 946 0.927 1.492 US 52 / US 61 / US 151 in Dubuque US 52 / US 61 / US 151 in Dubuque 01991-01-011991 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 02003-02-182003 Former US 34 Business
Iowa 952 0.112 0.180 US 151 near Cascade Reiter Road near Cascade 02003-01-012003 Former section of US 151
Iowa 954 0.773 1.244 US 61 near Maquoketa Maquoketa city limits 01967-01-011967 02003-01-012003 Former section of US 61
Iowa 955 0.727 1.170 US 61 near Key West Military Road in Key West 02003-01-012003 Former section of US 61
Iowa 956 16.776 26.998 CR F55 at Davenport US 61 north of DeWitt 02003-01-012003 Former section of US 61
Iowa 961 3.613 5.815 Iowa 2 in Fort Madison US 61 at Fort Madison 02011-01-012011 02013-01-012013 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 02003-01-012003 Former section of US 151 and US 61
Iowa 965 0.519 0.835 US 6 in Coralville I-80 in Coralville 01985-01-011985 current
Iowa 967 0.037 0.060 US 20 near Farley Farley city limits 02003-01-012003 Former section of US 20
Iowa 977 2.007 3.230 US 59 in Cherokee Iowa 3 near Cherokee 01964-01-011964 02003-01-012003  
Iowa 978 2.772 4.461 I-29 / US 34 near Glenwood Iowa 385 near Pacific Junction 01974-01-011974 02003-02-182003 Former section of US 34
Iowa 982 27.787 44.719 Smithland city limits Sioux City city limits 01961-01-011961 02003-01-012003 Former section of Iowa 141
Iowa 985 1.927 3.101 US 52 near Bellevue State Park US 52 near Bellevue 01980-01-011980 02003-01-012003 Park access road
Iowa 988 2.312 3.721 I-29 / I-680 near Crescent Iowa 183 in Crescent 01975-01-011975 02003-01-012003  
  •       Former

References[edit]