Home Insurance in Thornton, Illinois
Homes in Thornton carry a median value of $155,100 - 52% lower than the Cook County median.
The typical home in Thornton was built around 1959. About 53% of homes were built before 1960, about 4 points above Cook County's 49%. Because older housing stock often has aging wiring, roofing or plumbing, it can cost more to insure or rebuild.
Housing in Thornton breaks down to 81% single-family homes and 11% apartments in buildings with 5+ units.
In Thornton, about 64% of owner-occupied homes have a mortgage - lenders require hazard insurance on every mortgaged home.
The vacancy rate is 8%; vacant or unoccupied homes typically need a different coverage form than an owner-occupied policy. About 80% of occupied homes in Thornton are owner-occupied.
Most homes in Thornton - 87% - are primarily heated with natural gas.
FEMA rates Cook County's overall risk as Very High, led by winter weather (Very High). Cook County had 11,554 active NFIP flood policies as of September 2026. See the full Cook County home insurance overview for all FEMA hazard ratings and flood coverage details.
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 | $155,100 |
|---|---|
| Median year built | 1959 |
| Owner-occupied share | 80% |
| Share of owner-occupied homes with a mortgage | 64% |
| Top county hazard | Winter Weather (Very High) |
| Active NFIP policies in Cook County | 11,554 |
| 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)