Demographics & People — Hillsborough County, New Hampshire
Population & Households
| Population (official) | 422,733 |
|---|---|
| Median Age | 40.90 |
| Veterans | 25,022 |
| Housing Units | 175,630 |
| Uninsured | 3,497 |
Migration
| Inflow | 403,477 |
|---|---|
| Outflow | 404,753 |
| Net | -1,276 |
| Growing | No |
| Year | 2022-2023 |
Source: Census ACS 5-Year 2022. Official numbers: Census ACS 5-Year 2022 — county-level query.
Data provenance: aggregated from town-level sources, county.json. Rebuilt 2026-04-13T15:43:29.167809+00:00; aggregated 2026-04-13T16:08:24.325914+00:00.