Home Insurance in Stephenson County, Illinois
The median home value in Stephenson County is $134,900, 49% lower than the Illinois median.
The typical home in Stephenson County was built around 1960. About 51% of homes were built before 1960, about 13 points above Illinois's 38%. Older homes can cost more to insure or rebuild because of aging wiring, roofing and plumbing.
Mobile and manufactured homes typically need a manufactured-home (HO-7) policy rather than a standard homeowners policy. The housing stock in Stephenson County is 80% single-family homes, 10% apartments in buildings with 5+ units and 4% mobile or manufactured homes.
In Stephenson County, about 50% of owner-occupied homes have a mortgage - lenders require hazard insurance on every mortgaged home.
Stephenson County has an owner-occupancy rate of 71% and a vacancy rate of 9%; unoccupied homes typically need a different coverage form.
Homes heated with propane can carry added fire risk. Fuel-tank leaks and spills are often excluded from standard homeowners policies. In Stephenson County, 67% of homes are primarily heated with natural gas.
The top hazards for Stephenson County, per FEMA's National Risk Index, are hail (Relatively Moderate), strong wind (Relatively High) and tornado (Relatively Moderate).
Standard homeowners insurance does not cover flood damage, so flood coverage needs a separate NFIP or private flood policy. As of September 2026, Stephenson County has 60 active NFIP flood policies on file.
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 | $134,900 |
|---|---|
| Median year built | 1960 |
| Owner-occupied share | 71% |
| Share of owner-occupied homes with a mortgage | 50% |
| Top hazards (FEMA National Risk Index) | Hail (Relatively Moderate), Strong Wind (Relatively High), Tornado (Relatively Moderate) |
| Active NFIP flood policies (county) | 60 |
| Home insurance premium | $1,480 - statewide average (NAIC, 2023 data) |
Towns and cities
Sources
- 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)