The Cook Partisan Voting Index (PVI), is a measurement of how strongly a State or a Congressional District with a State leans Democrat or Republican, compared to the nation as a whole using the last two Presidential elections as the baseline.

The Index is updated after each Presidential election.  For PVI by Congressional District, see the US House Partisan Voting Index page.

States Across the US by PVI (Credit: SpeedMcCool – Wikipedia)
State > PVI as of 2016 Vote > Party of Governor > Party in Senate > House Seat Distribution
  1. Alabama > R+14 > Republican > Both > 6R, 1D
  2. Alaska > R+9 > Republican > Republican > 1R
  3. Arizona > R+5 > Republican > Both > 5D, 4R
  4. Arkansas > R+15 > Republican > Republican > 4R
  5. California > D+12 > Democratic > Democratic > 46D, 7R
  6. Colorado > D+1 > Democratic > Both > 4D, 3R
  7. Connecticut > D+6 > Democratic > Democratic > 5D
  8. Delaware > D+6 > Democratic > Democratic > 1D
  9. District of Columbia1 > D+43 > N/A > N/A > N/A
  10. Florida > R+2 > Republican > Republican > 14R, 13D
  11. Georgia > R+5 > Republican > Republican > 9R, 5D
  12. Hawaii > D+18 > Democratic > Democratic > 2D
  13. Idaho > R+19 > Republican > Republican > 2R
  14. Illinois > D+7 > Democratic > Democratic > 13D, 5R
  15. Indiana > R+9 > Republican > Republican > 7R, 2D
  16. Iowa > R+3 > Republican > Republican > 3D, 1R
  17. Kansas > R+13 > Democratic > Republican > 3R, 1D
  18. Kentucky > R+15 > Republican > Republican > 5R, 1D
  19. Louisiana > R+11 > Democratic > Republican > 5R, 1D
  20. Maine > D+3 > Democratic > Both* > 2D
  21. Maryland > D+12 > Republican > Democratic > 7D, 1R
  22. Massachusetts > D+12 > Republican > Democratic > 9D
  23. Michigan > D+1 > Democratic > Democratic > 7D, 6R, 1I
  24. Minnesota > D+1 > Democratic > Democratic > 5D, 3R
  25. Mississippi > R+9 > Republican > Republican > 3R, 1D
  26. Missouri > R+9 > Republican > Republican > 6R, 2D
  27. Montana > R+11 > Democratic > Both > 1R
  28. Nebraska > R+14 > Republican > Republican > 3R
  29. Nevada > D+1 > Democratic > Democratic > 3D, 1R
  30. New Hampshire > EVEN > Republican > Democratic > 2D
  31. New Jersey > D+7 > Democratic > Democratic > 11D, 1R
  32. New Mexico > D+3 > Democratic > Democratic > 3D
  33. New York > D+12 > Democratic > Democratic > 21D, 6R
  34. North Carolina > R+3 > Democratic > Republican > 10R, 3D
  35. North Dakota > R+17 > Republican > Republican > 1R
  36. Ohio > R+3 > Republican > Both > 12R, 4D
  37. Oklahoma > R+20 > Republican > Republican > 4R, 1D
  38. Oregon > D+5 > Democratic > Democratic > 4D, 1R
  39. Pennsylvania > EVEN > Democratic > Both > 9D, 9R
  40. Rhode Island > D+10 > Democratic > Democratic > 2D
  41. South Carolina > R+8 > Republican > Republican > 5R, 2D
  42. South Dakota > R+14 > Republican > Republican > 1R
  43. Tennessee > R+14 > Republican > Republican > 7R, 2D
  44. Texas > R+8 > Republican > Republican > 23R, 13D
  45. Utah > R+20 > Republican > Republican > 3R, 1D
  46. Vermont > D+15 > Republican > Democratic2 > 1D
  47. Virginia > D+1 > Democratic > Democratic > 7D, 4R
  48. Washington > D+7 > Democratic > Democratic > 7D, 3R
  49. West Virginia > R+19 > Republican > Both > 3R
  50. Wisconsin > EVEN > Democratic > Both > 5R, 3D
  51. Wyoming > R+25 > Republican > Republican > 1R

1 Per the 23rd Amendment, the District of Columbia is entitled to 3 Electoral Votes

2Vermont has an Independent Senator (Bernie Sanders) caucusing with the Democratic Party

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