# Counties in New Hampshire by median age, 2024

All 10 values come from U.S. Census Bureau for 2024, so the places are comparable.

- Indicator id: `median_age`
- Unit: years
- Definition: Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.
- Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population (https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat)
- Retrieved: 2026-10-08
- Citation: U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat. Retrieved 2026-10-08.
- Web page: https://invokely.ai/rankings/median-age/new-hampshire-counties
- CSV: https://invokely.ai/download/rankings/median-age/new-hampshire-counties.csv

| Rank | Place | years |
|---:|---|---:|
| 1 | Carroll County | 54.6 |
| 2 | Coos County | 50.3 |
| 3 | Belknap County | 48.4 |
| 4 | Sullivan County | 47 |
| 5 | Rockingham County | 45 |
| 6 | Grafton County | 44.1 |
| 7 | Cheshire County | 43.6 |
| 8 | Merrimack County | 42.9 |
| 9 | Hillsborough County | 41 |
| 10 | Strafford County | 38.2 |