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

All 62 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/new-york-counties

| Rank | Place | years |
|---:|---|---:|
| 1 | Hamilton County | 59.1 |
| 2 | Columbia County | 50.3 |
| 3 | Essex County | 49.1 |
| 4 | Warren County | 48.4 |
| 5 | Delaware County | 48.2 |
| 5 | Schuyler County | 48.2 |
| 7 | Greene County | 46.8 |
| 8 | Chenango County | 45.3 |
| 8 | Schoharie County | 45.3 |
| 8 | Washington County | 45.3 |
| 11 | Fulton County | 45.1 |
| 11 | Ontario County | 45.1 |
| 13 | Cayuga County | 44.7 |
| 13 | Ulster County | 44.7 |
| 15 | Tioga County | 44.6 |
| 16 | Herkimer County | 44.4 |
| 17 | Saratoga County | 44.3 |
| 18 | Putnam County | 44.2 |
| 19 | Wayne County | 44.1 |
| 20 | Niagara County | 43.8 |
| 20 | Wyoming County | 43.8 |
| 22 | Steuben County | 43.6 |
| 23 | Orleans County | 43.5 |
| 24 | Chautauqua County | 43.2 |
| 24 | Genesee County | 43.2 |
| 26 | Cattaraugus County | 43.1 |
| 26 | Lewis County | 43.1 |
| 28 | Franklin County | 42.7 |
| 28 | Seneca County | 42.7 |
| 30 | Dutchess County | 42.6 |
| 31 | Chemung County | 42.5 |
| 31 | Clinton County | 42.5 |
| 31 | Livingston County | 42.5 |
| 31 | Madison County | 42.5 |
| 35 | Nassau County | 42.3 |
| 36 | Westchester County | 42 |
| 37 | Suffolk County | 41.9 |
| 37 | Sullivan County | 41.9 |
| 39 | Yates County | 41.8 |
| 40 | Oneida County | 41.5 |
| 41 | Oswego County | 41 |
| 41 | Richmond County | 41 |
| 43 | Erie County | 40.6 |
| 44 | Monroe County | 40.4 |
| 44 | Rensselaer County | 40.4 |
| 46 | Queens County | 40.3 |
| 47 | Montgomery County | 40.2 |
| 48 | Onondaga County | 40.1 |
| 48 | St. Lawrence County | 40.1 |
| 50 | Broome County | 39.9 |
| 51 | Otsego County | 39.6 |
| 52 | Schenectady County | 39.4 |
| 53 | Albany County | 39.1 |
| 54 | Allegany County | 39 |
| 55 | Cortland County | 38.9 |
| 56 | New York County | 37.7 |
| 57 | Orange County | 37.2 |
| 58 | Kings County | 36.5 |
| 59 | Bronx County | 36.4 |
| 60 | Jefferson County | 34.9 |
| 61 | Rockland County | 33.1 |
| 62 | Tompkins County | 32.1 |