List of Iowa state highways

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Iowa 1 1926.svgIowa 136.svg
Highway markers from different years for Iowa 1 (1926) and Iowa 136 (current)
Highway names
Interstates: Interstate nn (I-nn)
US Routes: 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
Iowa 1 119.268 191.943 Iowa 2 south of Keosauqua US 151 south of Anamosa 1926 current
Iowa 2 251.376 404.550 N-2 at Nebraska City, Neb. US 61 at Fort Madison 1940 current
Iowa 2 232 373 US 6 near Lewis IL 2 at Muscatine 1920 1939 Became Iowa 92
Iowa 3 326.163 524.908 SD 50 near Westfield US 52 / US 61 / US 151 in Dubuque 1945 current
Iowa 3 264 425 N-2 at Nebraska City, Neb. IL 9 at Fort Madison 1920 1941 Became Iowa 2
Iowa 4 146.343 235.516 Iowa 44 in Panora MN 4 near Estherville 1969 current
Iowa 4 24 39 US 59 / Iowa 141 at Denison Iowa 175 at Odebolt 1920 1968 Became Iowa 39
Iowa 5 103.540 166.631 Route 5 south of 43 I-35 near West Des Moines 1969 current
Iowa 5 74 119 Iowa 3 near Aurelia US 169 at Fort Dodge 1920 1968 Became Iowa 7
Iowa 6 101 163 Missouri state line near Cincinnati US 63 in Des Moines 1926 1931 Became Iowa 60
Iowa 7 73.661 118.546 Iowa 3 near Aurelia US 169 at Fort Dodge 1969 current
Iowa 7 140 230 US 6 at Council Bluffs City US 6 in Des Moines 1920 1939 Became Iowa 64
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 Became 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 63.578 102.319 Iowa 3 near Pocahontas MN 15 near Armstrong 1969 current
Iowa 15 111 179 US 30 in Ames Minnesota state line near Lake Mills 1920 1935 Became US 69
Iowa 15 14 23 US 63 in Ottumwa Iowa 137 at Eddyville 1937 1968 Became Iowa 23
Iowa 15 4.655 7.491 Route 15 south of Milton Iowa 2 at Milton 1969 2003
Iowa 16 65.488 105.393 US 34 near Agency US 61 at Wever 1930 current
Iowa 17 102.789 165.423 Iowa 141 at Granger US 18 near Wesley 1969 current
Iowa 21 97.152 156.351 Iowa 149 near Hedrick US 20 / Iowa 27 at Waterloo 1934 current
Iowa 22 97.905 157.563 Iowa 21 near Thornburg US 61 at Davenport 1926 current
Iowa 23 14.316 23.039 US 63 in Ottumwa Iowa 137 at Eddyville 1969 1997 Replaced by US 63 and county roads
Iowa 23 16.022 25.785 Iowa 92 at Oskaloosa Iowa 149 near Fremont 1997 current
Iowa 24 27.546 44.331 US 18 / US 63 in New Hampton US 52 / Iowa 150 in Calmar 1928 current
Iowa 25 103.419 166.437 Iowa 2 near Benton US 30 near Scranton 1926 current
Iowa 26 11.370 18.298 Iowa 9 in Lansing MN 26 at New Albin 1969 current
Iowa 27 281.689 453.335 Route 27 near Wayland, Mo. I-35 at the Minnesota state line 2001 current Avenue of the Saints
Iowa 28 21.613 34.783 Iowa 92 at Martensdale I-35 / I-80 at Johnston 1926 current
Iowa 31 38.504 61.966 US 59 near Quimby Iowa 141 near Smithland 1920 current
Iowa 32 5.101 8.209 US 20 at Dubuque US 52 / Iowa 3 at Sageville 1995 current
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 24.321 39.141 US 59 at Denison Iowa 175 at Odebolt 1969 current
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 44 104.524 168.215 US 30 near Logan Iowa 141 at Grimes 1969 current
Iowa 45 1.324 2.131 Manilla Iowa 141 near Manilla 2003 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 2003  
Iowa 50 7.135 11.483 US 169 near Lehigh Lehigh 2003 Spur route
Iowa 51 11.007 17.714 US 18 / US 52 at Postville Iowa 9 near Waukon 1920 current
Iowa 55 4.506 7.252 Seymour Iowa 2 near Promise City 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 58.771 94.583 US 75 at Le Mars MN 60 at Bigelow, Minn. 1969 current
Iowa 62 19.633 31.596 Iowa 64 at Maquoketa US 52 in Bellevue 1920 current
Iowa 64 64.355 103.569 US 151 at Anamosa US 52 / IL 64 at Savanna, Ill. 1936 current
Iowa 66 7.011 11.283 Iowa 2 near Diagonal Diagonal 2003 Spur route
Iowa 68 1.933 3.111 Melrose US 34 near Melrose 2003 Spur route
Iowa 70 23.954 38.550 Iowa 92 at Columbus Junction US 6 in West Liberty 1969 current
Iowa 76 48.911 78.715 US 18 near McGregor MN 76 near Eitzen, Minn. 1969 current
Iowa 77 2.685 4.321 Iowa 92 near Keota Keota 2003 Spur route
Iowa 78 58.429 94.032 Iowa 149 near Martinsburg US 61 near Morning Sun 1920 current
Iowa 79 5.637 9.072 Geode State Park US 34 in Middletown 2003 Park access road
Iowa 81 2.215 3.565 Route 81 near Farmington Iowa 2 near Farmington 1969 current
Iowa 82 3.773 6.072 Blairstown US 30 near Blairstown 2003 Spur route
Iowa 83 34.191 55.025 US 59 in Avoca Iowa 148 in Anita 1920 current
Iowa 85 8.408 13.531 Montezuma city limits Iowa 21 near Deep River 1920 current
Iowa 86 12.519 20.147 US 71 near Milford MN 86 near Spirit Lake 1981 current
Iowa 91 4.643 7.472 Iowa 9 in Lyon County MN 91 at the Minnesota state line 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 2003 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 Russell 2003 Spur route
Iowa 98 1.814 2.919 Leando Iowa 16 near Douds 1944 current Spur route
Iowa 99 33.232 53.482 US 34 in Burlington US 61 in Wapello 2003  
Iowa 100 8.285 13.333 Edgewood Road in Cedar Rapids US 151 / Iowa 13 near Marion 1984 current
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 2003  
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
Iowa 109 1.268 2.041 Oxford US 6 near Oxford 2003 Spur route
Iowa 110 14.789 23.801 US 20 at Schaller Iowa 7 at Storm Lake 1934 current
Iowa 113 1.187 1.910 Iowa 64 near Spragueville Spragueville 2003 Spur route
Iowa 115 1.237 1.991 US 34 near Stanton Viking Lake State Park 2003 Park access road
Iowa 116 2.776 4.468 US 218 near Waverly Iowa 3 in Waverly 1998 current Section of US 218 Bus in Waverly
Iowa 117 18.562 29.873 Iowa 163 at Prairie City US 65 / Iowa 330 near Mingo 1936 current
Iowa 122 12.264 19.737 I-35 / US 18 at Clear Lake Mason City city limits 1999 current
Iowa 124 2.567 4.131 Iowa 4 in Calhoun County Twin Lakes State Park 2003 Park access road
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 2003 Part of the Lincoln Highway
Iowa 133 0.970 1.561 US 30 in Nevada Nevada 2003 Spur route
Iowa 136 97.733 157.286 IL 136 at Clinton US 52 / Iowa 3 at Luxemburg 1926 current
Iowa 137 14.526 23.377 Iowa 5 at Albia US 63 / Iowa 163 at Eddyville 1934 current
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 20.901 33.637 Iowa 2 in Plano Iowa 5 near Moravia 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 7.408 11.922 I-29 near Thurman US 275 near Sidney 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 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 85.093 136.944 US 218 at Vinton US 52 / Iowa 24 at Calmar 1941 current
Iowa 152 1.402 2.256 I-35 near Osceola US 69 at Osceola 1980 2014
Iowa 156 4.748 7.641 Iowa 5 near Marysville Bussey 2003 Spur route
Iowa 157 1.032 1.661 US 63 near Lime Springs Lime Springs 2003 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 2003  
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 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 181 9.596 15.443 Iowa 5 / Iowa 92 near Pleasantville Melcher-Dallas 2003 Spur route
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 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 191 22.790 36.677 I-680 near Neola Iowa 37 at Earling 1930 current
Iowa 192 6.647 10.697 I-29 / I-80 at Council Bluffs I-29 at Council Bluffs 1980 current
Iowa 193 10.852 17.465 US 18 in Fayette County Iowa 24 in Jackson Junction 2003  
Iowa 195 2.896 4.661 Iowa 4 near Plover Plover 2003 Spur route
Iowa 196 10.136 16.312 US 71 / Iowa 175 near Lake View US 20 near Sac City 1935 current
Iowa 197 2.567 4.131 Iowa 3 near Albert City Albert City 2003 Spur route
Iowa 198 2.231 3.590 Garrison US 218 near Garrison 2003 Spur route
Iowa 199 2.666 4.291 Van Horne US 218 near Van Horne 2003 Spur route
Iowa 200 2.163 3.481 US 30 near Keystone Keystone 2003 Spur route
Iowa 201 4.755 7.652 Norway US 30 / US 218 near Atkins 2003 Spur route
Iowa 202 10.461 16.835 Route 202 at Coatsville, Mo Iowa 2 near Moulton 1969 current
Iowa 204 5.407 8.702 Iowa 2 near Garden Grove Garden Grove 2003 Spur route
Iowa 205 2.927 4.711 US 65 near Milo Milo 2003 Spur route
Iowa 206 6.221 10.012 US 65 near Liberty Center Liberty Center 2003 Spur route
Iowa 207 3.058 4.921 I-35 near New Virginia New Virginia 2003 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 214 5.736 9.231 Iowa 175 near Ivester Wellsburg 2003 Spur route
Iowa 215 8.738 14.062 Union Iowa 175 in Eldora 2003 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 2003 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 2003 Spur route
Iowa 229 5.233 8.422 Garwin US 63 in Tama County 2003 Spur route
Iowa 231 4.068 6.547 US 34 west of New London US 34 east of New London 2003 Former section of US 34
Iowa 238 1.063 1.711 Iowa 9 near Harris Harris 2003 Spur route
Iowa 239 0.510 0.821 Waubonsie State Park Iowa 2 in Fremont County 2003 Park access road
Iowa 240 6.389 10.282 Royal US 71 in Clay County 2003 Spur route
Iowa 242 5.855 9.423 US 34 in Mills County Silver City 2003 Spur route
Iowa 243 0.559 0.900 Black Hawk Lake State Park US 71 / Iowa 175 near Wall Lake, Iowa 2003 Park access road
Iowa 244 0.771 1.241 I-80 near Neola Iowa 191 in Neola 2003  
Iowa 249 0.665 1.070 Iowa 78 near Winfield Winfield 2003 Spur route
Iowa 252 0.584 0.940 US 61 / Iowa 92 near Grandview Grandview 2003 Spur route
Iowa 253 0.932 1.500 Iowa 14 near Williamson Williamson 2003 Spur route
Iowa 258 1.989 3.201 I-35 near Van Wert US 69 near Van Wert 2003  
Iowa 259 1.001 1.611 US 169 near Tingley Tingley 2003 Spur route
Iowa 263 12.511 20.135 Iowa 14 in Grundy County US 20 near Cedar Falls 2003 Former section of US 20
Iowa 266 1.709 2.750 US 69 near Weldon Weldon 2003 Spur route
Iowa 273 10.025 16.134 Lake Wapello State Park US 63 near Draksevill 2003 Park access road
Iowa 276 4.711 7.582 Spirit Lake city limits Minnesota state line 2003 Park access road
Iowa 279 1.983 3.191 US 30 / US 218 near Atkins Atkins 2003 Spur route
Iowa 281 28.166 45.329 Waterloo city limits Iowa 150 at Oelwein 1936 current
Iowa 282 5.283 8.502 Quasqueton Iowa 939 near Winthrop 2003 Spur route
Iowa 285 0.796 1.281 US 30 in Arcadia Arcadia 2003 Spur route
Iowa 286 9.932 15.984 US 30 in Glidden Lanesboro 2003 Spur route
Iowa 287 1.833 2.950 US 30 / US 218 near Newhall Newhall 2003 Spur route
Iowa 294 6.147 9.893 Iowa 2 in Decatur County Grand River 2003 Spur route
Iowa 297 3.543 5.702 Gilbertville Raymond 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 2003 Spur route
Iowa 301 2.045 3.291 I-29 near Little Sioux Little Sioux 2003 Spur route
Iowa 305 2.554 4.110 Letts US 61 / Iowa 92 near Letts 2003 Spur route
Iowa 306 0.783 1.260 US 65 near Derby Derby 2003 Spur route
Iowa 314 6.277 10.102 Ayrshire US 18 near Ruthven 2003 Spur route
Iowa 315 4.158 6.692 Iowa 4 near Palmer Palmer 2003 Spur route
Iowa 316 5.183 8.341 Iowa 5 near Swan Runnells city limits 1935 current Spur route
Iowa 322 2.660 4.281 Pammel State Park Iowa 92 in Madison County 2003 Park access road
Iowa 324 0.510 0.821 Iowa 175 near Onawa Lewis and Clark State Park 2003 Park access road
Iowa 325 3.617 5.821 Spillville US 52 near Calmar 2003 Spur route
Iowa 327 2.070 3.331 Iowa 276 in Spirit Lake Near Orleans 2003 Spur route
Iowa 330 47.748 76.843 I-80 / US 6 / US 65 at Altoona Iowa 14 near Albion 1969 current
Iowa 333 1.558 2.507 I-29 at Hamburg US 275 in Hamburg 1935 current
Iowa 340 2.231 3.590 Pikes Peak State Park Iowa 76 in McGregor 2003 Park access road
Iowa 346 12.470 20.069 US 218 / Iowa 27 at Nashua US 18 / US 63 near New Hampton 1937 current
Iowa 349 1.032 1.661 Lake Ahquabi State Park US 65 / US 69 near Indianola 2003 Park access road
Iowa 356 0.949 1.527 Milford West Okoboji 2003 Former section of US 71
Iowa 359 7.383 11.882 Buckeye Iowa 941 in Alden 2003 Spur route
Iowa 362 5.469 8.802 DeSoto National Wildlife Refuge I-29 at Loveland 2003 Park access road
Iowa 363 1.616 2.601 Iowa 150 near Urbana I-380 / Iowa 27 in Urbana 2003  
Iowa 364 6.140 9.881 Iowa 76 near Waukon Junction Harpers Ferry 2003 Spur route
Iowa 370 3.265 5.255 N-370 at Bellevue, Neb I-29 / US 275 near Council Bluffs 1953 current
Iowa 371 0.715 1.151 Lake Keomah State Park Iowa 92 near Keomah Village 2003 Park access road
Iowa 376 10.334 16.631 I-129 / US 20 / US 75 at Sioux City US 75 at Sioux City 2001 current US 75 Bus in Sioux City
Iowa 382 4.792 7.712 Lake MacBride State Park Iowa 1 in Solon 2003 Park access road
Iowa 383 1.311 2.110 US 69 near Randall Randall 2003 Spur route
Iowa 384 1.231 1.981 Iowa 25 in Guthrie County Springbrook State Park 2003 Park access road
Iowa 385 3.151 5.071 Pacific Junction US 34 / US 275 in Glenwood 2003 Spur route
Iowa 386 2.685 4.321 US 52 / Iowa 3 near Sageville US 52 / Iowa 3 / Iowa 32 near Dubuque 2003  
Iowa 390 2.113 3.401 South of Plainfield North of Plainfield 2003 Former section of US 218
Iowa 403 0.477 0.768 SD 48 near Akron Iowa 12 in Akron 2003  
Iowa 404 1.629 2.622 Iowa 3 in Le Mars US 75 at Le Mars 2006 current Section of US 75 Bus in Le Mars
Iowa 405 0.249 0.401 Lone Tree Iowa 22 near Lone Tree 2003 Spur route
Iowa 406 2.275 3.661 US 34 near West Burlington Burlington 2003 Spur route
Iowa 410 2.157 3.471 Backbone State Park Iowa 3 / Iowa 13 near Strawberry Point 2003 Park access road
Iowa 415 16.857 27.129 US 6 in Des Moines Iowa 141 near Granger 1959 current
Iowa 419 1.038 1.670 Victor US 6 / Iowa 21 near Victor 2003 Spur route
Iowa 424 2.802 4.509 South of Swedesburg US 218 near Olds 2003 Former section of US 218
Iowa 428 6.140 9.881 Maquoketa Caves State Park US 61 near Maquoketa 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 Bus 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 Bus in Davenport
Iowa 478 0.755 1.215 Iowa 24 in New Hampton North of New Hampton 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 Bus at Fairfield, did not count mileage within Fairfield city limits
Iowa 916 1.293 2.081 Iowa 281 in Oelwein Oelwein 2003 Former section of Iowa 150
Iowa 920 12.560 20.213 Center Point Iowa 150 near Urbana 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 Bus in Cedar Rapids
Iowa 925 24.345 39.179 I-80 / US 6 in Adair US 6 near Dexter 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 current
Iowa 927 19.017 30.605 US 6 / Iowa 38 in Wilton I-280 / US 6 near Davenport 2003 Former section of US 6
Iowa 928 20.168 32.457 Iowa 17 near Webster City CR D20 near Williams 2003 Former section of US 20
Iowa 929 0.789 1.270 Murray city limits Maple Street in Murray 2003 Former section of Iowa 152
Iowa 930 1.738 2.797 US 30 near Ames BooneStory county line 1972 current Unsigned highway
Iowa 931 8.962 14.423 I-35 in Ankeny US 65 in Polk County 2003  
Iowa 934 4.881 7.855 Iowa 27 / Iowa 58 in Cedar Falls US 63 in Waterloo 1998 current Unsigned highway
Iowa 939 18.931 30.466 Iowa 187 near Masonville Black HawkBuchanan county line 2003 Former section of US 20
Iowa 941 12.953 20.846 I-35 near Williams Iowa Falls city limits 2003 Former section of US 20
Iowa 942 0.466 0.750 Vine Street in Woodburn Woodburn city limits 2003 Former section of Iowa 104
Iowa 945 4.599 7.401 I-80 near Altoona Iowa 931 in Polk County 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 2003 Former US 34 Business
Iowa 952 0.112 0.180 US 151 near Cascade Reiter Road near Cascade 2003 Former section of US 151
Iowa 954 0.773 1.244 US 61 near Maquoketa Maquoketa city limits 2003 Former section of US 61
Iowa 955 0.727 1.170 US 61 near Key West Military Road in Key West 2003 Former section of US 61
Iowa 956 16.776 26.998 CR F55 at Davenport US 61 north of DeWitt 2003 Former section of US 61
Iowa 961 3.613 5.815 Iowa 2 in Fort Madison US 61 at Fort Madison 2011 current Section of US 61 Bus in Fort Madison
Iowa 963 4.139 6.661 US 151 near Key West US 61 / US 151 in Dubuque 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 2003 Former section of US 20
Iowa 977 2.007 3.230 US 59 in Cherokee Iowa 3 near Cherokee 2003  
Iowa 978 2.772 4.461 I-29 / US 34 near Glenwood Iowa 385 near Pacific Junction 2003 Former section of US 34
Iowa 982 27.787 44.719 Smithland city limits Sioux City city limits 2003 Former section of Iowa 141
Iowa 985 1.927 3.101 US 52 near Bellevue State Park US 52 near Bellevue 2003 Park access road
Iowa 988 2.312 3.721 I-29 / I-680 near Crescent Iowa 183 in Crescent 2003  


References[edit]