Demographics & People — Washington County, Illinois

Population & Households

Population (official)13,781
Median Age44
Veterans958
Housing Units6,415
Uninsured81

Migration

Inflow13,426
Outflow13,301
Net125
GrowingYes
Year2022-2023

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 2026-04-13T15:43:27.769796+00:00; aggregated 2026-04-13T16:08:23.026103+00:00.