Regions in United States
Please click on a region name for more information on this region.
You can sort the regions in United States alphabeticallyby population by capitals of the regionsby capitals population
Primary administrative regions in United States
There are 51 regions in United States in the primary administrative level.| Region | No | Population | Capital | Capital population |
| California California | 1. | 39,512,223 | Sacramento Sacramento | 490,712 |
| Texas Texas | 2. | 22,875,689 | Austin Austin | 931,830 |
| New York New York | 3. | 19,274,244 | Albany Albany | 98,469 |
| Florida Florida | 4. | 17,671,452 | Tallahassee Tallahassee | 189,907 |
| Illinois Illinois | 5. | 12,772,888 | Springfield Springfield | 116,565 |
| Pennsylvania Pennsylvania | 6. | 12,440,621 | Harrisburg Harrisburg | 49,081 |
| Ohio Ohio | 7. | 11,467,123 | Columbus Columbus | 905,748 |
| North Carolina North Carolina | 8. | 10,488,084 | Raleigh Raleigh | 451,066 |
| Michigan Michigan | 9. | 9,883,360 | Lansing Lansing | 115,056 |
| Georgia Georgia | 10. | 8,975,842 | Atlanta Atlanta | 463,878 |
| New Jersey New Jersey | 11. | 8,751,436 | Trenton Trenton | 84,225 |
| Virginia Virginia | 12. | 7,642,884 | Richmond Richmond | 226,610 |
| Massachusetts Massachusetts | 13. | 6,433,422 | Boston Boston | 675,647 |
| Washington Washington | 14. | 6,271,775 | Olympia Olympia | 50,302 |
| Indiana Indiana | 15. | 6,265,933 | Indianapolis Indianapolis | 887,642 |
| Tennessee Tennessee | 16. | 5,935,099 | Nashville Nashville | 689,447 |
| Arizona Arizona | 17. | 5,863,809 | Phoenix Phoenix | 1,608,139 |
| Missouri Missouri | 18. | 5,768,151 | Jefferson City Jefferson City | 43,169 |
| Maryland Maryland | 19. | 5,624,246 | Annapolis Annapolis | 39,474 |
| Wisconsin Wisconsin | 20. | 5,535,168 | Madison Madison | 248,951 |
| Minnesota Minnesota | 21. | 5,141,953 | Saint Paul Saint Paul | 285,068 |
| Colorado Colorado | 22. | 4,678,630 | Denver Denver | 715,522 |
| Alabama Alabama | 23. | 4,530,315 | Montgomery Montgomery | 200,603 |
| Louisiana Louisiana | 24. | 4,515,939 | Baton Rouge Baton Rouge | 228,590 |
| South Carolina South Carolina | 25. | 4,229,842 | Columbia Columbia | 133,803 |
| Kentucky Kentucky | 26. | 4,206,074 | Frankfort Frankfort | 27,830 |
| Oregon Oregon | 27. | 3,642,919 | Salem Salem | 164,549 |
| Oklahoma Oklahoma | 28. | 3,547,049 | Oklahoma City Oklahoma City | 681,054 |
| Connecticut Connecticut | 29. | 3,527,249 | Hartford Hartford | 121,054 |
| Iowa Iowa | 30. | 2,955,010 | Des Moines Des Moines | 210,330 |
| Mississippi Mississippi | 31. | 2,901,371 | Jackson Jackson | 170,674 |
| Arkansas Arkansas | 32. | 2,757,631 | Little Rock Little Rock | 197,992 |
| Kansas Kansas | 33. | 2,740,759 | Topeka Topeka | 127,265 |
| Utah Utah | 34. | 2,427,340 | Salt Lake City Salt Lake City | 192,672 |
| Nevada Nevada | 35. | 2,399,532 | Carson City Carson City | 54,521 |
| New Mexico New Mexico | 36. | 1,912,684 | Santa Fe Santa Fe | 84,099 |
| West Virginia West Virginia | 37. | 1,817,871 | Charleston Charleston | 49,736 |
| Nebraska Nebraska | 38. | 1,757,399 | Lincoln Lincoln | 277,348 |
| Idaho Idaho | 39. | 1,416,564 | Boise Boise | 145,987 |
| Maine Maine | 40. | 1,325,518 | Augusta Augusta | 18,471 |
| New Hampshire New Hampshire | 41. | 1,316,216 | Concord Concord | 42,620 |
| Hawaii Hawaii | 42. | 1,284,220 | Honolulu Honolulu | 371,657 |
| Rhode Island Rhode Island | 43. | 1,050,292 | Providence Providence | 190,934 |
| Montana Montana | 44. | 930,698 | Helena Helena | 30,581 |
| Delaware Delaware | 45. | 838,549 | Dover Dover | 37,522 |
| South Dakota South Dakota | 46. | 770,184 | Pierre Pierre | 14,002 |
| Alaska Alaska | 47. | 660,633 | Juneau Juneau | 32,756 |
| North Dakota North Dakota | 48. | 630,529 | Bismarck Bismarck | 71,167 |
| Vermont Vermont | 49. | 624,501 | Montpelier Montpelier | 7,592 |
| Washington, D.C. District of Columbia | 50. | 552,433 | Washington Washington | 689,545 |
| Wyoming Wyoming | 51. | 505,907 | Cheyenne Cheyenne | 63,335 |