1. Adair, Iowa, United States 
2. Audubon, Iowa, United States (2) 
3. Black Hawk, Iowa, United States (1)
4. Boone, Iowa, United States (1)
5. Butler, Iowa, United States (1)
6. Calhoun, Iowa, United States (5) 
7. Carroll, Iowa, United States (9) 
8. Cass, Iowa, United States (1)
9. Cerro Gordo, Iowa, United States (2)
10. Cherokee, Iowa, United States (1)
11. Chickasaw, Iowa, United States (1)
12. Clinton, Iowa, United States (1)
13. Crawford, Iowa, United States (3)
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14. Dallas, Iowa, United States (2)
15. Des Moines, Iowa, United States 
16. Dubuque, Iowa, United States 
17. Greene, Iowa, United States 
18. Hardin, Iowa, United States (1)
19. Iowa City, Iowa, United States 
20. Iowa, United States 
21. Jasper, Iowa, United States (2)
22. Johnson, Iowa, United States (1)
23. Linn, Iowa, United States (1)
24. Lyon, Iowa, United States (1)
25. Marion, Iowa, United States 
26. Marshall, Iowa, United States (1)
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27. Mills, Iowa, United States (1)
28. O'Brien, Iowa, United States (1)
29. Palo Alto, Iowa, United States (1)
30. Pierce, Iowa, United States 
31. Pocahontas, Iowa, United States 
32. Polk, Iowa, United States (3) 
33. Pottawattamie, Iowa, United States (1)
34. Scott, Iowa, United States (1)
35. Tama, Iowa, United States (1)
36. Warren, Iowa, United States (1)
37. Woodbury, Iowa, United States (1)
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