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

All 29 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/utah-counties

| Rank | Place | years |
|---:|---|---:|
| 1 | Daggett County | 49 |
| 2 | Piute County | 47.7 |
| 3 | Wayne County | 44.9 |
| 4 | Kane County | 44.8 |
| 5 | Garfield County | 44 |
| 6 | Summit County | 42.4 |
| 7 | Grand County | 41.8 |
| 8 | Rich County | 40.2 |
| 9 | Carbon County | 39 |
| 10 | Emery County | 38.4 |
| 11 | Wasatch County | 38.1 |
| 11 | Washington County | 38.1 |
| 13 | Millard County | 36.6 |
| 13 | Sevier County | 36.6 |
| 15 | San Juan County | 36.4 |
| 16 | Beaver County | 34.7 |
| 17 | Morgan County | 34.6 |
| 18 | Duchesne County | 34.5 |
| 19 | Salt Lake County | 34.4 |
| 20 | Weber County | 34.3 |
| 21 | Sanpete County | 33.8 |
| 22 | Uintah County | 33.6 |
| 23 | Box Elder County | 33.5 |
| 24 | Davis County | 33 |
| 25 | Tooele County | 32.2 |
| 26 | Iron County | 31.2 |
| 27 | Juab County | 30.9 |
| 28 | Cache County | 27.2 |
| 29 | Utah County | 26.8 |