So off the top of my head, and using the criteria of having done something in the state other than simply drive through or layover at an airport, I’ve been to:
1. Kansas
2. Illinois
3. Wisconsin
4. California
5. New Jersey
6. New York
7. Pennsylvania
8. Massachusetts
9. Delaware
10. Maryland
11. Virginia
12. Alabama
13. Florida
14. Lousiana
15. Texas
16. Arizona
17. Nevada
18. Washington
19. Colorado
20. Utah
21. Alaska
22. South Dakota
23. Wyoming
24. Iowa
25. Missouri
26. Michigan
27. Indiana
28. Tennessee
29. Kentucky
That leaves the following still to visit:
1. Hawaii
2. Maine
3. Vermont
4. New Hampshire
5. Rhode Island
6. Connecticut (drove through it)
7. North Carolina
8. South Carolina
9. Georgia (drove through it)
10. Oklahoma
11. New Mexico
12. Idaho
13. Montana
14. North Dakota
15. Nebraska (driven across it several times)
16. Minnesota
17. Arkansas
18. Mississippi
19. West Virginia (drove through a piece of it)
20. Ohio (driven across it many times)
21. Oregon
