1. Jackson County, Missouri 
2. Jackson County, Ohio 
3. Jackson Township, Monroe County, Iowa (1)
4. Jackson Twp, Kosciusko County, Indiana 
5. Jacksonville, Morgan County, Illinois (2) 
6. Jamaica, Queen's County, New York 
7. Jasper County, Indiana 
8. Jasper County, Missouri 
9. Jefferson County, Indiana 
10. Jefferson County, Iowa 
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11. Jefferson County, Kentucky 
12. Jefferson County, Missouri 
13. Jefferson County, Ohio 
14. Jefferson County, Virginia 
15. Jefferson, County, Alabama 
16. Jenkins Township, Barry County, Missouri (2) 
17. Jennings County, Indiana 
18. Jessamine County, Kentucky 
19. Johnson County, Indiana 
20. Johnson County, Iowa 
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21. Johnson County, Missouri 
22. Johnson Township, Champaign County, Ohio 
23. Jolly, Newton County, Missouri 
24. Joplin, Jasper County, Missouri (2) 
25. Jordan H. Walker Farm Cemetery, Anderson County, Kentucky 
26. Judge 
27. Judge & Lawyer 
28. Judge County Court 
29. Junction City, Geary County, Kansas 
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