The figures cited might be okay if emissions "by the power sector" are all that's considered; but a report a few months ago showed total per capita CO₂ emissions at 20 metric ton/person for the US average. The figures were from 2003, but I haven't seen much evidence of improvement.

The link I have for the article isn't working, but:

By The Associated Press

Here are the states ranked by carbon dioxide emissions per capita with No. 1 being the highest pollution per person. In parentheses are per-capita carbon dioxide emissions in metric tons. One metric ton is 2,204.6 pounds. The national average is 20 metric tons.

1. Wyoming (125)
2. North Dakota (80)
3. Alaska (69)
4. West Virginia (63)
5. Louisiana (40)
6. Indiana (38)
7. Montana (36)
8. Kentucky (35)
9. New Mexico (31)
10. Texas (30)
11. Alabama (30)
12. Oklahoma (29)
13. Kansas (29)
14. Iowa (27)
15. Utah (26)
16. Nebraska (25)
17. Missouri (24)
18. Ohio (23)
19. Arkansas (23)
20. Pennsylvania (22)
21. Mississippi (22)
22. Delaware (21)
23. Tennessee (21)
24. Minnesota (20)
25. Colorado (20)
26. Nevada (19)
27. Georgia (19)
28. Wisconsin (19)
29. South Carolina (19)
30. Michigan (18)
31. Illinois (18)
32. South Dakota (18)
33. Maine (18)
34. North Carolina (17)
35. Hawaii (17)
36. Virginia (17)
37. New Hampshire (16)
38. Arizona (16)
39. Florida (14)
40. New Jersey (14)
41. Maryland (14)
42. Massachusetts (14)
43. Washington (13)
44. Connecticut (12)
45. Oregon (11)
46. New York (11)
47. California (11)
48. Rhode Island (11)
49. Vermont (11)
50. Idaho (10)

Source: U.S. Department of Energy, 2003 figures.

It has to be noted that some of the states with the lowest ratings get most of their generated power from other states - some a long distance away. Dividing by the number of people receiving power, rather than just the number living nearby, would make the figures much more even - perhaps - - - - and perhaps not.

John