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What are the largest counties in Oklahoma?

Oklahoma County is the largest county in Oklahoma, with 822,125 residents in 2025 (Census PEP). Tulsa County (698,782) and Cleveland County (303,973) come next.

Data as of 2025 · updated

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All 77 ranked Oklahoma counties

Oklahoma counties ranked by population
RankCountyResidents 2025Change 2020–25
1Oklahoma County822,125+3.0%
2Tulsa County698,782+4.2%
3Cleveland County303,973+2.6%
4Canadian County187,189+20.4%
5Comanche County122,158+0.8%
6Rogers County102,197+7.1%
7Wagoner County93,263+14.6%
8Payne County83,889+2.7%
9Pottawatomie County75,102+3.5%
10Creek County74,967+4.3%
11Muskogee County66,708+0.7%
12Garfield County61,779−1.5%
13Grady County59,128+7.7%
14Logan County55,473+11.5%
15Washington County54,037+2.7%
16Bryan County51,367+10.9%
17Le Flore County50,196+4.1%
18McClain County49,647+18.4%
19Cherokee County49,196+4.5%
20Carter County48,910+1.8%
21Osage County46,794+2.2%
22Stephens County44,310+3.4%
23Kay County43,490−0.3%
24Pittsburg County43,320−1.1%
25Delaware County41,910+3.8%
26Sequoyah County40,842+4.1%
27Mayes County40,416+3.5%
28Pontotoc County38,528+1.1%
29Okmulgee County37,241+1.5%
30Lincoln County35,278+5.3%
31McCurtain County30,744−0.3%
32Ottawa County30,438+0.7%
33Custer County28,175−1.0%
34Garvin County26,377+2.8%
35Caddo County26,130−2.9%
36Jackson County24,764+0.1%
37Seminole County23,441−0.3%
38Beckham County22,159−0.7%
39Texas County20,322−4.6%
40Adair County19,828+1.9%
41Woodward County19,827−2.8%
42McIntosh County19,758+4.3%
43Marshall County16,255+6.0%
44Pawnee County16,029+3.1%
45Kingfisher County15,795+4.1%
46Atoka County14,609+3.1%
47Craig County14,518+2.6%
48Choctaw County14,059−1.0%
49Murray County13,805−0.5%
50Hughes County13,455+0.8%
51Haskell County11,787+2.0%
52Okfuskee County11,451+1.6%
53Noble County10,899−0.2%
54Washita County10,884−0.2%
55Pushmataha County10,807+0.1%
56Love County10,780+6.1%
57Johnston County10,448+2.0%
58Latimer County9,645+1.8%
59Nowata County9,522+2.1%
60Blaine County8,515−2.2%
61Woods County8,443−1.8%
62Kiowa County8,181−3.7%
63Major County7,536−2.7%
64Tillman County6,780−2.4%
65Alfalfa County5,649−1.1%
66Coal County5,436+3.0%
67Cotton County5,432−1.9%
68Jefferson County5,431+2.2%
69Greer County5,373−2.2%
70Beaver County4,882−2.9%
71Dewey County4,207−6.0%
72Grant County4,067−2.8%
73Ellis County3,613−3.4%
74Roger Mills County3,259−5.0%
75Harper County3,172−2.3%
76Harmon County2,327−6.0%
77Cimarron County2,059−10.0%

How this is ranked

The Census Bureau's July 1 resident population estimates for 2025, largest first, with the change since 2020. Counties with fewer than 1,000 residents are not ranked. Areas without an estimate for the same year as the others are not ranked.

Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025). Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built.

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Questions

What is the largest county in Oklahoma?

Oklahoma County is the largest county in Oklahoma, with 822,125 residents in 2025 (Census PEP). Tulsa County (698,782) and Cleveland County (303,973) come next.

How is this ranking calculated?

The Census Bureau's July 1 resident population estimates for 2025, largest first, with the change since 2020. Counties with fewer than 1,000 residents are not ranked. Areas without an estimate for the same year as the others are not ranked.

More rankings for Oklahoma

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