Home Insurance in Lenzburg, Illinois
The median home value in Lenzburg is $77,900, 57% lower than the St. Clair County median.
Aging wiring, roofing and plumbing in older homes can push up the cost to insure or rebuild them. The typical home in Lenzburg was built around 1971. About 35% of homes were built before 1960, about 3 points above St. Clair County's 32%.
In Lenzburg, the housing stock is 72% single-family homes and 19% mobile or manufactured homes. Mobile and manufactured homes typically need a manufactured-home (HO-7) policy rather than a standard homeowners policy.
About 50% of owner-occupied homes in Lenzburg have a mortgage. Lenders require hazard (homeowners) insurance on any home carrying a mortgage.
Lenzburg has an owner-occupancy rate of 64% and a vacancy rate of 13%; unoccupied homes typically need a different coverage form.
48% of homes in Lenzburg are primarily heated with natural gas. Homes heated with propane and wood can carry added fire risk. Fuel-tank leaks and spills are often excluded from standard homeowners policies.
FEMA rates St. Clair County's overall risk as Relatively High, led by earthquake (Relatively Moderate). St. Clair County had 1,003 active NFIP flood policies as of September 2026. See the full St. Clair County home insurance overview for all FEMA hazard ratings and flood coverage details. Earthquake damage is excluded from a standard homeowners policy.
In Illinois, the statewide average premium for a standard HO-3 homeowners policy is $1,480 per year (NAIC, 2023 data).
Key figures
| Median home value | $77,900 |
|---|---|
| Median year built | 1971 |
| Owner-occupied share | 64% |
| Share of owner-occupied homes with a mortgage | 50% |
| Top county hazard | Earthquake (Relatively Moderate) |
| Active NFIP policies in St. Clair County | 1,003 |
| Home insurance premium | $1,480 - statewide average (NAIC, 2023 data) |
Nearby towns
Sources
Data last updated: 2026-09-29
- U.S. Census Bureau Gazetteer Files (2024)
- U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates (2024)
- FEMA National Risk Index (December 2025)
- FEMA OpenFEMA NFIP Redacted Policies v3 (2026)
- NAIC Dwelling Fire, Homeowners Owner-Occupied, and Homeowners Tenant and Condominium/Cooperative Unit Owners Insurance: Data for 2023 (published 2026) (2023)