1. , Iowa, United States (3) 
2. Adams, Iowa, United States (1)
3. , Appanoose, Iowa, United States 
4. Buchanan, Iowa, United States (1)
5. Clay, Iowa, United States (1)
6. Clayton, Iowa, United States (2) 
7. Davis, Iowa, United States (4) 
8. Delaware County, Iowa, United States (1)
9. Delaware, Iowa, United States (2)
10. Dubuque County, Iowa, United States (1)
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11. Dubuque, Iowa, United States (2)
12. Fayette County, Iowa, United States (1)
13. Fayette, Iowa, United States (1)
14. Franklin, Iowa, United States (1)
15. Greene, Iowa, United States (1)
16. Hamilton, Iowa, United States (1)
17. Howard, Iowa, United States (1)
18. Jasper, Iowa, United States (1)
19. , Jefferson , Iowa, United States 
20. Jefferson County, Iowa, United States (3)
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21. Jefferson, Iowa, United States (1)
22. Johnson County, Iowa, United States (1)
23. Lucas, Iowa, United States (2) 
24. , Montgomery, Iowa, United States 
25. , Page, Iowa, United States 
26. Story, Iowa, United States (1)
27. Wapello County, Iowa, United States (4)
28. Wapello, Iowa, United States (2) 
29. Wright, Iowa, United States (1)
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