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Volume of Traffic on the Primary Road System

2015 Routes by county

Search for a route number for statewide results:   
County
Number
County
Name
Routes
1ADAIR 25 80 92
2ADAMS 34 148
3ALLAMAKEE 9 18 26 51 52 76
4APPANOOSE 2 5 202
5AUDUBON 44 71 173
6BENTON 8 21 30 150 151 218 380
7BLACK HAWK 20 21 27 57 58 63 175 218 281 380 934
8BOONE 17 30 144 169 210 930
9BREMER 3 63 93 116 188 218
10BUCHANAN 20 150 187 281 380
11BUENA VISTA 3 7 10 71 110
12BUTLER 3 14 57 188
13CALHOUN 4 7 20 175
14CARROLL 30 71 141
15CASS 6 48 71 80 83 92 148 173
16CEDAR 6 30 38 80 130
17CERRO GORDO 18 35 65 122
18CHEROKEE 3 7 31 59 143
19CHICKASAW 18 24 63 218 346
20CLARKE 34 35 69 152
21CLAY 10 18 71
22CLAYTON 3 13 18 52 56 76 128
23CLINTON 30 61 67 136
24CRAWFORD 30 37 39 59 141
25DALLAS 6 17 44 80 141 144 169 210
26DAVIS 2 16 63 202
27DECATUR 2 35 69
28DELAWARE 3 13 20 38
29DES MOINES 34 61
30DICKINSON 9 71 86
31DUBUQUE 3 20 32 52 61 136 151 946
32EMMET 4 9 15
33FAYETTE 3 18 56 93 150 187
34FLOYD 14 18 218
35FRANKLIN 3 35 65
36FREMONT 2 29 59 275 333
37GREENE 4 25 30 144
38GRUNDY 14 20 57 175
39GUTHRIE 4 25 44 141
40HAMILTON 17 20 35 69 175
41HANCOCK 17 18 69
42HARDIN 20 57 65 175
43HARRISON 29 30 37 44 127 183 191
44HENRY 34 78 218 438
45HOWARD 9 63
46HUMBOLDT 3 15 169
47IDA 20 31 59 175
48IOWA 6 21 80 149 151 212 220
49JACKSON 52 61 62 64 67
50JASPER 6 14 65 80 117 163 224 330
51JEFFERSON 1 34 78
52JOHNSON 1 6 22 80 218 380 965
53JONES 1 38 64 136 151
54KEOKUK 1 21 22 23 78 92 149
55KOSSUTH 9 15 18 169
56LEE 2 16 27 61 136 218
57LINN 1 13 30 100 151 380 922
58LOUISA 61 70 78 92
59LUCAS 14 34 65
60LYON 9 18 75 182
61MADISON 80 92 169
62MAHASKA 23 63 92 102 146 163 903
63MARION 5 14 92 163 316
64MARSHALL 14 30 96 146 330
65MILLS 29 34 59 275
66MITCHELL 9 218
67MONONA 29 37 141 175 183
68MONROE 5 34 137
69MONTGOMERY 34 48 71
70MUSCATINE 6 22 38 61 70 92
71O'BRIEN 10 18 59 60 143
72OSCEOLA 9 59 60
73PAGE 2 48 59 71
74PALO ALTO 4 18
75PLYMOUTH 3 12 60 75 140 404 470
76POCAHONTAS 3 4 7 10 15
77POLK 5 6 17 28 35 44 65 69 80 141 160 163 235 316 415
78POTTAWATTAMIE 6 29 59 80 83 92 165 191 192 275 480 680
79POWESHIEK 6 21 63 80 85 146
80RINGGOLD 2 25 169
81SAC 20 39 71 110 175 196
82SCOTT 6 22 61 67 74 80 130 280 461
83SHELBY 37 44 59 173 191
84SIOUX 10 12 18 60 75 450
85STORY 30 35 65 69 210 330
86TAMA 8 21 30 63 96 146
87TAYLOR 2 148
88UNION 25 34 169
89VAN BUREN 1 2 16 81 98
90WAPELLO 16 34 63 137 149
91WARREN 5 28 35 65 69 92 316 368
92WASHINGTON 1 22 78 92 218
93WAYNE 2 14 65
94WEBSTER 7 20 144 169 175
95WINNEBAGO 9 69
96WINNESHIEK 9 24 52 139 150
97WOODBURY 12 20 29 31 75 77 129 140 141 175 376
98WORTH 9 35 65 69
99WRIGHT 3 17 35 69