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

All 36 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/oregon-counties

| Rank | Place | years |
|---:|---|---:|
| 1 | Curry County | 58.9 |
| 2 | Wheeler County | 56.9 |
| 3 | Lincoln County | 54 |
| 4 | Grant County | 50.7 |
| 5 | Wallowa County | 50.1 |
| 6 | Tillamook County | 49.7 |
| 7 | Coos County | 49.3 |
| 8 | Gilliam County | 48.2 |
| 9 | Josephine County | 48 |
| 10 | Baker County | 47.7 |
| 11 | Douglas County | 47.1 |
| 11 | Lake County | 47.1 |
| 13 | Clatsop County | 46.9 |
| 14 | Harney County | 46.5 |
| 15 | Crook County | 46 |
| 16 | Sherman County | 44.2 |
| 17 | Jackson County | 43.9 |
| 18 | Columbia County | 43.7 |
| 19 | Deschutes County | 43.3 |
| 20 | Clackamas County | 43 |
| 21 | Wasco County | 42.7 |
| 22 | Hood River County | 42.5 |
| 23 | Klamath County | 42.3 |
| 24 | Lane County | 41.7 |
| 25 | Jefferson County | 41 |
| 26 | Union County | 40.6 |
| 26 | Yamhill County | 40.6 |
| 28 | Linn County | 40.4 |
| 29 | Polk County | 39.4 |
| 30 | Multnomah County | 39.2 |
| 31 | Washington County | 38.8 |
| 32 | Marion County | 37.9 |
| 33 | Malheur County | 37.8 |
| 34 | Umatilla County | 37.2 |
| 35 | Morrow County | 36.9 |
| 36 | Benton County | 34.9 |