Home Insurance in Williamsfield, Illinois
The median home value in Williamsfield is $109,800, close to the Knox County median.
Because older housing stock often has aging wiring, roofing or plumbing, it can cost more to insure or rebuild. The typical home in Williamsfield was built around 1971. About 43% of homes were built before 1960, about 10 points below Knox County's 54%.
The housing stock in Williamsfield is 98% single-family homes and 1% apartments in buildings with 5+ units.
52% of owner-occupied homes in Williamsfield carry a mortgage, and mortgage lenders require hazard insurance for as long as the loan is active.
Williamsfield has an owner-occupancy rate of 94% and a vacancy rate of 8%; unoccupied homes typically need a different coverage form.
Most homes in Williamsfield - 69% - are primarily heated with natural gas. Homes heated with propane can carry added fire risk. Fuel-tank leaks and spills are often excluded from standard homeowners policies.
What's the biggest home insurance risk near Williamsfield? FEMA's National Risk Index points to strong wind (Relatively High) in Knox County and Knox County had 35 active NFIP flood policies as of September 2026. See the full Knox County home insurance overview for all FEMA hazard ratings and flood coverage details.
The statewide average premium for a standard HO-3 homeowners policy in Illinois is $1,480 per year, according to the NAIC homeowners insurance report (2023 data).
Key figures
| Median home value | $109,800 |
|---|---|
| Median year built | 1971 |
| Owner-occupied share | 94% |
| Share of owner-occupied homes with a mortgage | 52% |
| Top county hazard | Strong Wind (Relatively High) |
| Active NFIP policies in Knox County | 35 |
| 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)