Demographics & People — Seneca County, New York
Population & Households
| Population (official) | 33,651 |
|---|---|
| Median Age | 43 |
| Veterans | 2,431 |
| Housing Units | 16,116 |
| Uninsured | 993 |
Migration
| Inflow | 28,680 |
|---|---|
| Outflow | 28,767 |
| Net | -87 |
| 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 2026-04-13T15:43:29.497536+00:00; aggregated 2026-04-13T16:08:24.622838+00:00.