Oklahoma Counties by Population (2025)
Top 5 Most Populous Counties
820,392
694,482
304,611
188,979
120,272
77 counties
| County | 2025 Pop. ↓ | Area (mi²) | Density | Change (2020) |
|---|---|---|---|---|
| Oklahoma County | 820,392 | 709 | 1,157 | 2.77% |
| Tulsa County | 694,482 | 570 | 1,218 | 3.55% |
| Cleveland County | 304,611 | 539 | 565 | 2.83% |
| Canadian County | 188,979 | 897 | 211 | 21.58% |
| Comanche County | 120,272 | 1,069 | 113 | -0.7% |
| Rogers County | 102,624 | 676 | 152 | 7.59% |
| Wagoner County | 94,446 | 562 | 168 | 16.05% |
| Payne County | 84,654 | 685 | 124 | 3.68% |
| Pottawatomie County | 74,671 | 788 | 95 | 2.91% |
| Creek County | 74,624 | 950 | 79 | 3.87% |
| Muskogee County | 67,417 | 811 | 83 | 1.77% |
| Garfield County | 62,167 | 1,059 | 59 | -0.84% |
| Grady County | 58,829 | 1,101 | 53 | 7.19% |
| Logan County | 55,239 | 744 | 74 | 11.06% |
| Washington County | 54,642 | 416 | 131 | 3.85% |
| Bryan County | 50,825 | 904 | 56 | 9.7% |
| Le Flore County | 50,784 | 1,589 | 32 | 5.37% |
| McClain County | 50,396 | 571 | 88 | 20.24% |
| Carter County | 49,116 | 822 | 60 | 2.24% |
| Cherokee County | 48,407 | 749 | 65 | 2.78% |
| Osage County | 46,686 | 2,247 | 21 | 1.96% |
| Stephens County | 44,810 | 870 | 52 | 4.64% |
| Pittsburg County | 43,485 | 1,306 | 33 | -0.69% |
| Kay County | 43,447 | 920 | 47 | -0.35% |
| Delaware County | 42,149 | 738 | 57 | 4.35% |
| Sequoyah County | 41,271 | 674 | 61 | 5.13% |
| Mayes County | 40,527 | 655 | 62 | 3.76% |
| Pontotoc County | 39,124 | 720 | 54 | 2.7% |
| Okmulgee County | 37,083 | 697 | 53 | 1.06% |
| Lincoln County | 35,418 | 952 | 37 | 5.73% |
| McCurtain County | 30,434 | 1,851 | 16 | -1.35% |
| Ottawa County | 30,203 | 471 | 64 | -0.06% |
| Custer County | 28,720 | 989 | 29 | 0.95% |
| Caddo County | 26,168 | 1,278 | 20 | -2.75% |
| Garvin County | 26,053 | 802 | 32 | 1.58% |
| Jackson County | 24,689 | 803 | 31 | -0.23% |
| Seminole County | 23,767 | 633 | 38 | 1.06% |
| Beckham County | 22,174 | 902 | 25 | -0.72% |
| Texas County | 20,103 | 2,041 | 10 | -5.57% |
| McIntosh County | 20,003 | 618 | 32 | 5.56% |
| Adair County | 19,849 | 574 | 35 | 2.02% |
| Woodward County | 19,811 | 1,243 | 16 | -2.94% |
| Pawnee County | 16,230 | 568 | 29 | 4.33% |
| Marshall County | 16,068 | 371 | 43 | 4.75% |
| Kingfisher County | 15,987 | 898 | 18 | 5.33% |
| Craig County | 15,130 | 761 | 20 | 6.99% |
| Atoka County | 14,921 | 975 | 15 | 5.34% |
| Choctaw County | 14,014 | 770 | 18 | -1.34% |
| Murray County | 13,900 | 416 | 33 | 0.17% |
| Hughes County | 13,440 | 804 | 17 | 0.7% |
| Haskell County | 12,162 | 577 | 21 | 5.3% |
| Okfuskee County | 11,446 | 618 | 19 | 1.58% |
| Pushmataha County | 10,982 | 1,396 | 8 | 1.76% |
| Noble County | 10,806 | 732 | 15 | -1.11% |
| Washita County | 10,736 | 1,003 | 11 | -1.53% |
| Love County | 10,540 | 514 | 21 | 3.76% |
| Johnston County | 9,956 | 643 | 15 | -2.86% |
| Nowata County | 9,488 | 566 | 17 | 1.8% |
| Latimer County | 9,466 | 722 | 13 | -0.14% |
| Blaine County | 8,727 | 928 | 9 | 0.3% |
| Woods County | 8,488 | 1,286 | 7 | -1.28% |
| Kiowa County | 8,234 | 1,015 | 8 | -3.14% |
| Major County | 7,671 | 955 | 8 | -0.97% |
| Tillman County | 6,665 | 871 | 8 | -4.06% |
| Alfalfa County | 5,641 | 867 | 7 | -1.23% |
| Cotton County | 5,383 | 633 | 9 | -2.75% |
| Greer County | 5,306 | 639 | 8 | -3.39% |
| Jefferson County | 5,225 | 759 | 7 | -1.82% |
| Coal County | 5,216 | 517 | 10 | -1.19% |
| Beaver County | 5,016 | 1,815 | 3 | -0.28% |
| Dewey County | 4,050 | 1,000 | 4 | -9.5% |
| Grant County | 4,005 | 1,001 | 4 | -4.19% |
| Ellis County | 3,578 | 1,231 | 3 | -4.31% |
| Harper County | 3,240 | 1,039 | 3 | -0.37% |
| Roger Mills County | 3,211 | 1,141 | 3 | -6.36% |
| Harmon County | 2,344 | 537 | 4 | -5.33% |
| Cimarron County | 2,107 | 1,835 | 1 | -7.95% |
Overview of Oklahoma Counties
There are 77 counties in Oklahoma.
The most populated county in Oklahoma is Oklahoma County, home to Oklahoma City. With a population of 792,582 residents, Oklahoma County has experienced a 9.96% rate of growth since the last census in 2010.
Coming up after Oklahoma City in terms of size are:
- Tulsa County (648,360) home to Tulsa
- Cleveland County (281,669)
- Canadian County (114,447)
- Comanche County (120,422)
These are the only Oklahoma counties with more than 100,000 residents. All experienced population growth since 2010 except Comanche County which declined 3.97%. The most significant growth was in Canadian County with an impressive growth rate of 24.16%.
Counties with Fewest Residents
The least populated county in Oklahoma is Cimarron County. Cimarron County has a population of 2,153, having declined 12.80% since the 2010 census.
Other small counties in Oklahoma with a population of fewer than 5,000 residents include:
- Harmon County (2,664)
- Roger Mills County (3,656)
- Harper County (3,797)
- Ellis County (3,952)
- Grant County (4,326)
- Dewey County (4,894)
Of these counties, Cimarron County experienced the most dramatic population decline and Harper County experienced the largest growth rate of 2.70%.
Counties with Rapid Growth
Since the last U.S. census was taken in 2010, the fastest-growing county in Oklahoma has been Canadian County. With a rate of growth of 24.16%, the population of Canadian County now stands at 144,447.
Behind Canadian County are:
- McClain County (15.11%)
- Logan County (12.45%)
- Bryan County (10.82%)
The county with the biggest decrease in population is Cimarron County, which, since 2010, has lost 12.8% of its residents.
Sources
- US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
- American Community Survey (2009 - 2013)
- Census QuickFacts
- Historical Populations of States and Counties (1790 - 1990)