1. Alton County, Iowa, U.S.A. 
2. Benton County, Iowa, U.S.A. (2)
3. Black Hawk County, Iowa, U.S.A. (2)
4. Boone County, Iowa, U.S.A. (1)
5. Buena Vista County, Iowa, U.S.A. (3)
6. Burlington, Iowa, U.S.A.
7. Calhoun County, Iowa, U.S.A. (2)
8. Cass County, Iowa, U.S.A. (1)
9. Cerro Gordo County, Iowa, U.S.A. (1)
10. Cherokee county, Iowa, U.S.A.
11. Chickasaw County, Iowa, U.S.A. (3)
12. Clay County, Iowa, U.S.A. (1)
13. Clinton County, Iowa, U.S.A. (2)
14. Coggon, Iowa, U.S.A.
15. Crawford County, Iowa, U.S.A. (2)
16. Davis County, Iowa, U.S.A. (1)
17. Delaware county, Iowa, U.S.A. (2)
18. Des Moines County, Iowa, U.S.A. (1)
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19. Dubuque County, Iowa, U.S.A. (2)
20. Fayette County, Iowa, U.S.A. (2)
21. Franklin County, Iowa, U.S.A. (3)
22. Frimont, Iowa, U.S.A. (1)
23. Gerro Gordo County, Iowa, U.S.A. (4)
24. Grundy County, Iowa, U.S.A.
25. Harrison County, Iowa, U.S.A. (2)
26. Harrison, Iowa, U.S.A. (1)
27. Humboldt County, Iowa, U.S.A.
28. Iowa, U.S.A.
29. Jackson County, Iowa, U.S.A. (2)
30. Jefferson County, Iowa, U.S.A. (2)
31. Keokuk, Iowa, U.S.A.
32. Linn County, Iowa, U.S.A. (2)
33. Linn, Iowa, U.S.A.
34. Mitchell County, Iowa, U.S.A. (2)
35. Montgomery County, Iowa, U.S.A. (1)
36. O'Brien County, Iowa, U.S.A. (1)
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37. Page County, Iowa, U.S.A. (1)
38. Palo Alto County, Iowa, U.S.A. (1)
39. Plymouth County, Iowa, U.S.A. (2)
40. Polk County, Iowa, U.S.A. (2)
41. Pottawattamie County, Iowa, U.S.A. (2)
42. Pottawattamie, Iowa, U.S.A. (1)
43. Poweshiek County, Iowa, U.S.A. (1)
44. Story County, Iowa, U.S.A. (1)
45. Tama County, Iowa, U.S.A. (1)
46. Wapello County, Iowa, U.S.A. (2)
47. Washington County, Iowa, U.S.A. (1)
48. Wayne County, Iowa, U.S.A. (1)
49. Webster County, Iowa, U.S.A. (3)
50. Webster, Iowa, U.S.A. (1)
51. Winneshiek County, Iowa, U.S.A. (1)
52. Woodbury County, Iowa, U.S.A. (4)
53. Worth County, Iowa, U.S.A.
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