Iowa's Best Contractors

Registry data · 2026-07-14

Every Iowa county, counted: where the state's 18,879 contractors are

All 99 counties with published listings, from Polk County down — the complete geographic picture of Iowa's contractor registry.

Registrations issued or renewed per month · trailing 9 months

Every county with published listings, ranked by active registrations

01Polk County2,062 active
02Linn County985 active
03Johnson County534 active
04Scott County447 active
05Dubuque County385 active
06Dallas County363 active
07Black Hawk County353 active
08Woodbury County333 active
09Warren County324 active
10Story County320 active
11Iowa County308 active
12Pottawattamie County296 active
13Marshall County151 active
14Sioux County149 active
15Muscatine County145 active
16Webster County141 active
17Buchanan County135 active
18Cerro Gordo County134 active
19Boone County129 active
20Clinton County128 active
21Jasper County122 active
22Benton County121 active
23Washington County121 active
24Delaware County120 active
25Dickinson County113 active
26Marion County108 active
27Madison County107 active
28Lee County106 active
29Plymouth County105 active
30Des Moines County103 active
31Jones County103 active
32Jackson County102 active
33Wapello County100 active
34Carroll County99 active
35Cedar County96 active
36Hardin County95 active
37Bremer County89 active
38Clay County88 active
39Fayette County86 active
40Clayton County85 active
41Mahaska County84 active
42Poweshiek County81 active
43Winneshiek County77 active
44Guthrie County75 active
45Crawford County74 active
46Kossuth County74 active
47Hamilton County67 active
48Allamakee County64 active
49Harrison County63 active
50Tama County62 active
51Wayne County62 active
52Cass County61 active
53Henry County59 active
54Buena Vista County58 active
55Mills County58 active
56Butler County57 active
57Page County56 active
58Emmet County52 active
59Jefferson County52 active
60Davis County50 active
61Shelby County50 active
62Union County50 active
63Montgomery County48 active
64Howard County47 active
65Lyon County47 active
66Appanoose County45 active
67Obrien County44 active
68Greene County43 active
69Humboldt County43 active
70Cherokee County42 active
71Winnebago County42 active
72Palo Alto County41 active
73Adair County40 active
74Grundy County40 active
75Sac County40 active
76Chickasaw County39 active
77Lucas County38 active
78Mitchell County38 active
79Wright County37 active
80Calhoun County36 active
81Monona County35 active
82Decatur County33 active
83Louisa County32 active
84Fremont County31 active
85Keokuk County31 active
86Hancock County30 active
87Worth County30 active
88Clarke County28 active
89Floyd County28 active
90Franklin County27 active
91Monroe County26 active
92Ringgold County22 active
93Van Buren County22 active
94Audubon County21 active
95Adams County19 active
96Ida County19 active
97Osceola County19 active
98Taylor County18 active
99Pocahontas County15 active

Reporting on Iowa construction? These numbers are free to cite with a link to this page or the directory. As of July 2026, this is the complete public picture of Iowa’s registered contractor population.