Home Insurance in Monmouth, Illinois
Homes in Monmouth carry a median value of $86,800 - 17% lower than the Warren 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 Monmouth was built around 1952. About 62% of homes were built before 1960, about 6 points above Warren County's 56%.
In Monmouth, the housing stock is 80% single-family homes, 12% apartments in buildings with 5+ units and 4% mobile or manufactured homes. Mobile and manufactured homes typically need a manufactured-home (HO-7) policy rather than a standard homeowners policy.
About 55% of owner-occupied homes in Monmouth have a mortgage. Lenders require hazard (homeowners) insurance on any home carrying a mortgage.
About 66% of occupied homes in Monmouth are owner-occupied. The vacancy rate is 11%; vacant or unoccupied homes typically need a different coverage form than an owner-occupied policy.
77% of homes in Monmouth are primarily heated with natural gas.
Warren County's top FEMA-rated hazard is hail (Relatively Low), per FEMA's National Risk Index. Warren County had 27 active NFIP flood policies as of September 2026. See the full Warren 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 | $86,800 |
|---|---|
| Median year built | 1952 |
| Owner-occupied share | 66% |
| Share of owner-occupied homes with a mortgage | 55% |
| Top county hazard | Hail (Relatively Low) |
| Active NFIP policies in Warren County | 27 |
| 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)