More than you might think. The Bureau of Economic Analysis did a study to figure out the real value of $100 in each state and Montana didn't do too bad.

If you want to get the most for your money, spend it in Mississippi, where $100 will buy you items that would cost $115.34 in a state that is closer to the national average.

I would avoid the District of Columbia, Hawaii, New York, New Jersey and California if at all possible though. You'll get much less for your money in those places.

What $100 is worth in each state from greatest purchasing power to least:

  1. Mississippi: $115.34
  2. Arkansas: $114.29
  3. Alabama: $113.90
  4. South Dakota: $113.64
  5. Kentucky: $112.74
  6. West Virginia: $112.49
  7. Ohio: $111.98
  8. Missouri: $111.86
  9. Oklahoma: $110.99
  10. Tennessee: $110.86
  11. Iowa: $110.74
  12. South Carolina: $110.50
  13. Nebraska: $110.38
  14. Kansas: $110.25
  15. Louisiana and Indiana (tie): $109.41
  16. North Dakota: $109.29
  17. North Carolina: $109.05
  18. Georgia: $108.70
  19. Idaho and Wisconsin (tie): $107.07
  20. Michigan: $106.27
  21. Montana: $106.16
  22. New Mexico: $105.26
  23. Wyoming: $103.95
  24. Arizona: $103.73
  25. Texas: $103.52
  26. Utah: $103.09
  27. Maine: $102.99
  28. Minnesota: $102.46
  29. Nevada: $102.35
  30. Pennsylvania: $101.83
  31. Rhode Island: $101.32
  32. Oregon: $101.01
  33. Florida: $100.91
  34. Illinois: $99.30
  35. Vermont: $98.81
  36. Delaware: $98.14
  37. Colorado: $98.04
  38. Virginia: $97.47
  39. Washington: $96.34
  40. New Hampshire: $95.06
  41. Alaska: $94.61
  42. Massachusetts: $93.37
  43. Connecticut: $91.91
  44. Maryland: $90.66
  45. California: $88.87
  46. New Jersey: $87.34
  47. New York: $86.43
  48. Hawaii: $85.62
  49. District of Columbia: $84.67