Demographics & People — Clark County, Illinois

Population & Households

Population (official)15,467
Median Age41.40
Veterans887
Housing Units7,365
Uninsured55

Migration

Inflow14,458
Outflow14,312
Net146
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 2026-04-13T15:43:27.581901+00:00; aggregated 2026-04-13T16:08:22.866140+00:00.