1. , , Iowa, USA 
2. Adair, Iowa, USA (5)
3. Adams, Iowa, USA (1)
4. Appanoose, Iowa, USA (5)
5. Benton, Iowa, USA (2)
6. Black Hawk, Iowa, USA (3)
7. Boone, Iowa, USA (2)
8. Bremer, Iowa, USA (1)
9. Buena Vista, Iowa, USA (2)
10. Butler, Iowa, USA (1)
11. Cass, Iowa, USA (7)
12. Cedar, Iowa, USA (2)
13. Cerro Gordo, Iowa, USA (1)
14. Dallas, Iowa, USA (2)
15. , Davis, Iowa, USA
16. Decatur, Iowa, USA (2)
17. Delaware, Iowa, USA (1)
18. Des Moines, Iowa, USA (2)
19. Dubuque, Iowa, USA (9)
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20. Fayette, Iowa, USA (1)
21. , Guthrie, Iowa, USA
22. Hardin, Iowa, USA (2)
23. Henry, Iowa, USA (2)
24. Ida, Iowa, usa (1)
25. Jasper, Iowa, USA (2)
26. Jefferson, Iowa, USA (7)
27. Johnson, Iowa, USA (2)
28. , Jones, Iowa, USA
29. Keokuk, Iowa, USA (6)
30. Linn, Iowa, USA (3)
31. Louisa, Iowa, USA (9)
32. Madison, Iowa, USA (1)
33. Mahaska, Iowa, USA (5)
34. Marion, Iowa, USA (3)
35. Marshall, Iowa, USA (5)
36. , Mascatine, Iowa, USA
37. Monroe, Iowa, USA (3)
38. Muscatine, Iowa, USA (2)
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39. Palo Alto, Iowa, USA (2)
40. Plymouth, Iowa, USA (3)
41. Pocahontas, Iowa, USA (2)
42. Polk, Iowa, USA (5)
43. Pottawattamie, Iowa, USA (2)
44. Poweshiek, Iowa, USA (3)
45. Scott, Iowa, USA (1)
46. Shelby, Iowa, USA (5)
47. Sioux, Iowa, USA (2)
48. Story, Iowa, USA (4)
49. Tama, Iowa, USA (11)
50. Taylor, Iowa, USA (1)
51. Union, Iowa, USA (1)
52. Wapello, Iowa, USA (9)
53. Warren, Iowa, USA (1)
54. Washington, Iowa, USA (4)
55. Webster, Iowa, USA (5)
56. Worth, Iowa, USA (3)
57. Wright, Iowa, USA (1)
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