Home Insurance in Onawa, Iowa
With a median home value of $145,800, Onawa is close to the Monona County median.
The typical home in Onawa was built around 1960. About 50% of homes were built before 1960, about 4 points below Monona County's 54%. Older homes can cost more to insure or rebuild because of aging wiring, roofing and plumbing.
The housing stock in Onawa is 85% single-family homes and 11% apartments in buildings with 5+ units.
In Onawa, about 66% of owner-occupied homes have a mortgage - lenders require hazard insurance on every mortgaged home.
About 74% of occupied homes in Onawa are owner-occupied. The vacancy rate is 8%; vacant or unoccupied homes typically need a different coverage form than an owner-occupied policy.
Most homes in Onawa - 64% - are primarily heated with natural gas.
Monona County's top FEMA-rated hazard is hail (Relatively Moderate), per FEMA's National Risk Index. Monona County had 38 active NFIP flood policies as of September 2026. See the full Monona County home insurance overview for all FEMA hazard ratings and flood coverage details.
According to the NAIC homeowners insurance report (2023 data), a standard HO-3 homeowners policy in Iowa carries a statewide average premium of $1,342 per year.
Key figures
| Median home value | $145,800 |
|---|---|
| Median year built | 1960 |
| Owner-occupied share | 74% |
| Share of owner-occupied homes with a mortgage | 66% |
| Top county hazard | Hail (Relatively Moderate) |
| Active NFIP policies in Monona County | 38 |
| Home insurance premium | $1,342 - 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)