RANKING · 2025 ESTIMATES · 77 SHOWN OF 77

Largest by population, Oklahoma counties

The most populous Oklahoma counties as of the 2025 population estimates. This list covers the 77 counties in Oklahoma that qualify, ranked against each other statewide. The median across all 77 is 20,322. Biggest climber in the top 100 since 2020: McClain County, OK, up 6 places to #18.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS 2000

01Oklahoma County, OKOK822,125+24%

02Tulsa County, OKOK698,782+24%

03Cleveland County, OKOK303,973+46%

04Canadian County, OKOK187,189+113%

05Comanche County, OKOK122,158+6%

06Rogers County, OKOK102,197+45%

07▲1Wagoner County, OKOK93,263+62%

08▼1Payne County, OKOK83,889+23%

09Pottawatomie County, OKOK75,102+15%

10Creek County, OKOK74,967+11%

11Muskogee County, OKOK66,708−4%

12Garfield County, OKOK61,779+7%

13Grady County, OKOK59,128+30%

14▲1Logan County, OKOK55,473+64%

15▼1Washington County, OKOK54,037+10%

16▲3Bryan County, OKOK51,367+41%

17▼1Le Flore County, OKOK50,196+4%

18▲6McClain County, OKOK49,647+79%

19▼1Cherokee County, OKOK49,196+16%

20▼3Carter County, OKOK48,910+7%

21▼1Osage County, OKOK46,794+5%

22▲1Stephens County, OKOK44,310+3%

23▼1Kay County, OKOK43,490−10%

24▼3Pittsburg County, OKOK43,320−1%

25Delaware County, OKOK41,910+13%

26Sequoyah County, OKOK40,842+5%

27Mayes County, OKOK40,416+5%

28Pontotoc County, OKOK38,528+10%

29Okmulgee County, OKOK37,241−6%

30Lincoln County, OKOK35,278+10%

31McCurtain County, OKOK30,744−11%

32Ottawa County, OKOK30,438−8%

33Custer County, OKOK28,175+8%

34▲1Garvin County, OKOK26,377−3%

35▼1Caddo County, OKOK26,130−13%

36Jackson County, OKOK24,764−13%

37Seminole County, OKOK23,441−6%

38Beckham County, OKOK22,159+12%

39Texas County, OKOK20,322+1%

40▲1Adair County, OKOK19,828−6%

41▼1Woodward County, OKOK19,827+7%

42McIntosh County, OKOK19,758+2%

43▲1Marshall County, OKOK16,255+23%

44▼1Pawnee County, OKOK16,029−4%

45Kingfisher County, OKOK15,795+13%

46▲1Atoka County, OKOK14,609+5%

47▲1Craig County, OKOK14,518−3%

48▼2Choctaw County, OKOK14,059−8%

49Murray County, OKOK13,805+9%

50Hughes County, OKOK13,455−5%

51Haskell County, OKOK11,7870%

52Okfuskee County, OKOK11,451−3%

53Noble County, OKOK10,899−4%

54Washita County, OKOK10,884−5%

55Pushmataha County, OKOK10,807−7%

56▲1Love County, OKOK10,780+22%

57▼1Johnston County, OKOK10,448−1%

58Latimer County, OKOK9,645−10%

59Nowata County, OKOK9,522−10%

60Blaine County, OKOK8,515−29%

61Woods County, OKOK8,443−7%

62Kiowa County, OKOK8,181−20%

63Major County, OKOK7,5360%

64Tillman County, OKOK6,780−27%

65Alfalfa County, OKOK5,649−7%

66▲3Coal County, OKOK5,436−10%

67▼1Cotton County, OKOK5,432−18%

68Jefferson County, OKOK5,431−20%

69▼2Greer County, OKOK5,373−11%

70Beaver County, OKOK4,882−17%

71Dewey County, OKOK4,207−11%

72Grant County, OKOK4,067−21%

73Ellis County, OKOK3,613−11%

74Roger Mills County, OKOK3,259−5%

75Harper County, OKOK3,172−11%

76Harmon County, OKOK2,327−29%

77Cimarron County, OKOK2,059−35%

SHOWING 1–77 OF 77

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES