Demographics & People — Stephenson County, Illinois

Population & Households

Population (official)44,482
Median Age45.60
Veterans2,673
Housing Units21,402
Uninsured357

Migration

Inflow40,222
Outflow40,167
Net55
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 2026-04-13T15:43:27.760129+00:00; aggregated 2026-04-13T16:08:23.018167+00:00.