Lenzburg · St. Clair County, Illinois
Population 513 (est. 2026: ~300)
Source: Census ACS 2023 · ACS 2023 + -16.57% annual growth projection
Population 513 (est. 2026: ~300)
Source: Census ACS 2023 · ACS 2023 + -16.57% annual growth projection
Contact this office — local service-area, municipal code pointer, and corrections form.