# Counties in Oklahoma by median age on 1 July (US county estimates), 2025

All 77 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `median_age_pep`
- Unit: years
- Definition: Age that divides the resident population of a US county into two halves of equal size on 1 July, from Census Bureau population estimates calculated by single year of age.
- Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage (https://www.census.gov/programs-surveys/popest/data/data-sets.html)
- Publisher page: https://invokely.ai/en/publishers/us-census-bureau
- Retrieved: 2026-10-12
- Citation: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/median-age-july-1-us-counties/oklahoma-counties

| Rank | Place | years |
|---:|---|---:|
| 1 | McIntosh County | 47.7 |
| 2 | Delaware County | 47.6 |
| 3 | Alfalfa County | 44.9 |
| 4 | Ellis County | 44.5 |
| 5 | Grant County | 44.2 |
| 6 | Pushmataha County | 44 |
| 7 | Osage County | 43.9 |
| 8 | Murray County | 43.8 |
| 9 | Roger Mills County | 43.7 |
| 10 | Harper County | 43.5 |
| 11 | Noble County | 43.4 |
| 12 | Tillman County | 43.2 |
| 13 | Marshall County | 43 |
| 14 | Cimarron County | 42.9 |
| 15 | Cotton County | 42.8 |
| 16 | Kiowa County | 42.7 |
| 17 | Stephens County | 42.4 |
| 18 | Major County | 42.2 |
| 18 | Pawnee County | 42.2 |
| 20 | Okfuskee County | 42.1 |
| 21 | Pittsburg County | 41.9 |
| 22 | Choctaw County | 41.8 |
| 22 | Craig County | 41.8 |
| 22 | Latimer County | 41.8 |
| 22 | Nowata County | 41.8 |
| 26 | Beaver County | 41.6 |
| 26 | Haskell County | 41.6 |
| 26 | Jefferson County | 41.6 |
| 29 | Lincoln County | 41.4 |
| 30 | Greer County | 41 |
| 30 | Washita County | 41 |
| 32 | Creek County | 40.9 |
| 33 | Love County | 40.8 |
| 34 | Harmon County | 40.7 |
| 35 | Atoka County | 40.6 |
| 36 | Mayes County | 40.5 |
| 37 | Grady County | 40.4 |
| 37 | Sequoyah County | 40.4 |
| 39 | Dewey County | 40.3 |
| 40 | Logan County | 40.2 |
| 40 | Rogers County | 40.2 |
| 40 | Washington County | 40.2 |
| 43 | Blaine County | 40 |
| 43 | Carter County | 40 |
| 43 | Coal County | 40 |
| 43 | Hughes County | 40 |
| 47 | Garvin County | 39.7 |
| 48 | Okmulgee County | 39.6 |
| 49 | McClain County | 39.5 |
| 49 | Woodward County | 39.5 |
| 51 | Wagoner County | 39.4 |
| 52 | Johnston County | 39.3 |
| 52 | Kay County | 39.3 |
| 52 | Le Flore County | 39.3 |
| 52 | Muskogee County | 39.3 |
| 56 | Pottawatomie County | 38.9 |
| 57 | Caddo County | 38.8 |
| 57 | Seminole County | 38.8 |
| 59 | Ottawa County | 38.6 |
| 60 | Kingfisher County | 38.3 |
| 61 | Beckham County | 38.2 |
| 62 | Pontotoc County | 37.8 |
| 63 | McCurtain County | 37.7 |
| 64 | Adair County | 37.5 |
| 65 | Garfield County | 37.2 |
| 66 | Cherokee County | 36.9 |
| 67 | Bryan County | 36.8 |
| 67 | Tulsa County | 36.8 |
| 69 | Canadian County | 36.5 |
| 70 | Cleveland County | 36.4 |
| 71 | Woods County | 36 |
| 72 | Jackson County | 35.9 |
| 72 | Oklahoma County | 35.9 |
| 74 | Comanche County | 34.9 |
| 75 | Texas County | 33.5 |
| 76 | Custer County | 32.3 |
| 77 | Payne County | 28.4 |