1. Adair County, Iowa (1)
2. Allamakee County, Iowa (2)
3. Black Hawk County, Iowa (3)
4. Calhoun County, Iowa (6)
5. Cedar County, Iowa (2)
6. Chickasaw County, Iowa (1)
7. Clay County, Iowa
8. Clayton County, Iowa (2)
9. Clinton County, Iowa (1)
10. Crawford County, Iowa (4)
11. Dallas County, Iowa (2)
12. Davis County, Iowa
13. Des Moines County, Iowa (3)
14. Dubuque County, Iowa (1)
15. Floyd County, Iowa (5)
16. Fort Des Moines, Iowa
17. Fremont County, Iowa (3)
18. Guthrie County, Iowa (1)
19. Hamilton County, Iowa (3)
20. Hancock County, Iowa (1)
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21. Hardin County, Iowa (3)
22. Henry County, Iowa (4)
23. Howard County, Iowa (1)
24. Ida County, Iowa (2)
25. Iowa (2)
26. Iowa County, Iowa (1)
27. Jasper County, Iowa (1)
28. Jefferson County, Iowa (4)
29. Johnson County, Iowa (6)
30. Jones County, Iowa (1)
31. Keokuk County, Iowa (3)
32. Lee County, Iowa (3)
33. Linn County, Iowa (3)
34. Louisa County, Iowa (4)
35. Lucas County, Iowa (4)
36. Lyon County, Iowa
37. Madison County, Iowa (5)
38. Mahaska County, Iowa (1)
39. Marion County, Iowa (2)
40. Marshall County, Iowa (2)
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41. Mills County, Iowa (1)
42. Monroe County, Iowa (2)
43. Osceola County, Iowa (2)
44. Ottumwa Regional Airport, Iowa
45. Palo Alto County, Iowa (2)
46. Polk County, Iowa (3)
47. Pottawattamie County, Iowa (3)
48. Scott County, Iowa (3)
49. Sioux City, Iowa
50. Thompson County, Iowa (2)
51. Union County, Iowa (2)
52. Van Buren County, Iowa (2)
53. Warren County, Iowa (4)
54. Washington County, Iowa (1)
55. Wayne County, Iowa (4)
56. Webster County, Iowa (3)
57. Winnebago County, Iowa (2)
58. Wright County, Iowa (6)
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