Demographics & People — Petroleum County, Montana
Population & Households
| Population (official) | 416 |
|---|---|
| Median Age | 49.60 |
| Veterans | 40 |
| Housing Units | 292 |
| Uninsured | 6 |
Migration
| Inflow | 356 |
|---|---|
| Outflow | 354 |
| Net | 2 |
| Growing | Yes |
| 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 2026-04-13T15:43:29.026219+00:00; aggregated 2026-04-13T16:08:24.192645+00:00.