Ranking of Oklahoma Counties By Population in 2015
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2015, the Population for Oklahoma was 3.91M. Among all Oklahoma counties, Oklahoma County had the highest population (777.41K), followed by Tulsa County (640.85K), and Cleveland County (274.04K).
The chart below shows the top 10 counties, and the table below shows the ranking of all Oklahoma counties.
You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.
Related Topics: Oklahoma Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage), 2015 Census.
See this for other years:
Ranking of Oklahoma Counties By Population in 2015
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| Rank | County | Population |
|---|---|---|
| 1 | Oklahoma County | 777406 |
| 2 | Tulsa County | 640851 |
| 3 | Cleveland County | 274041 |
| 4 | Canadian County | 133241 |
| 5 | Comanche County | 123689 |
| 6 | Rogers County | 90113 |
| 7 | Payne County | 81443 |
| 8 | Wagoner County | 76753 |
| 9 | Pottawatomie County | 71510 |
| 10 | Creek County | 70798 |
| 11 | Muskogee County | 69349 |
| 12 | Garfield County | 63246 |
| 13 | Grady County | 54563 |
| 14 | Washington County | 52144 |
| 15 | Le Flore County | 50030 |
| 16 | Carter County | 48587 |
| 17 | Cherokee County | 48392 |
| 18 | Osage County | 47333 |
| 19 | Logan County | 45355 |
| 20 | Kay County | 45261 |
| 21 | Bryan County | 45080 |
| 22 | Pittsburg County | 44725 |
| 23 | Stephens County | 44604 |
| 24 | Sequoyah County | 41811 |
| 25 | Delaware County | 41738 |
| 26 | Mayes County | 40901 |
| 27 | Okmulgee County | 39072 |
| 28 | Pontotoc County | 38343 |
| 29 | McClain County | 37981 |
| 30 | Lincoln County | 34937 |
| 31 | McCurtain County | 33174 |
| 32 | Ottawa County | 31890 |
| 33 | Custer County | 29568 |
| 34 | Caddo County | 29439 |
| 35 | Garvin County | 27913 |
| 36 | Jackson County | 25464 |
| 37 | Seminole County | 25410 |
| 38 | Beckham County | 23564 |
| 39 | Adair County | 22266 |
| 40 | Woodward County | 21619 |
| 41 | Texas County | 21452 |
| 42 | McIntosh County | 19811 |
| 43 | Pawnee County | 16436 |
| 44 | Marshall County | 16267 |
| 45 | Kingfisher County | 15595 |
| 46 | Choctaw County | 14987 |
| 47 | Craig County | 14706 |
| 48 | Atoka County | 13888 |
| 49 | Murray County | 13859 |
| 50 | Hughes County | 13589 |
| 51 | Haskell County | 12749 |
| 52 | Okfuskee County | 12110 |
| 53 | Washita County | 11697 |
| 54 | Noble County | 11560 |
| 55 | Pushmataha County | 11155 |
| 56 | Johnston County | 10977 |
| 57 | Latimer County | 10622 |
| 58 | Nowata County | 10517 |
| 59 | Love County | 9815 |
| 60 | Blaine County | 9772 |
| 61 | Woods County | 9306 |
| 62 | Kiowa County | 9120 |
| 63 | Major County | 7774 |
| 64 | Tillman County | 7565 |
| 65 | Jefferson County | 6259 |
| 66 | Greer County | 6031 |
| 67 | Cotton County | 6008 |
| 68 | Alfalfa County | 5912 |
| 69 | Coal County | 5600 |
| 70 | Beaver County | 5460 |
| 71 | Dewey County | 4986 |
| 72 | Grant County | 4497 |
| 73 | Ellis County | 4218 |
| 74 | Harper County | 3825 |
| 75 | Roger Mills County | 3782 |
| 76 | Harmon County | 2782 |
| 77 | Cimarron County | 2225 |