Homeowners Insurance by ZIP Code
Every U.S. ZIP code in the Treasury Federal Insurance Office homeowners insurance markets dataset: average premium, loss ratio, claim frequency, claim severity, and nonrenewal rate. Joined with the FEMA National Risk Index for county-level natural-hazard context.
Coverage status: Treasury FIO 2018-2022 release covers every public ZIP submitted to the FIO. Some ZIPs lack 5-year history due to insurer reporting gaps.
Browse by state
Click a state to see all ZIP codes with insurance data in that jurisdiction.
What each ZIP-level metric measures
- Average premium — mean homeowners insurance premium for policies written in the ZIP, FIO reporting year.
- Loss ratio — ratio of claims paid to premiums earned. A ratio of 1.0 indicates insurer break-even on losses; substantially higher ratios indicate carrier unprofitability and often correlate with subsequent nonrenewal action.
- Claim frequency — claims filed per policy. Annual rate; higher numbers indicate more frequent claim events (storms, fires, theft, water damage).
- Claim severity — average dollar size of paid claims in the ZIP. Often elevated in catastrophe-exposed coastal and wildland-urban-interface areas.
- Nonrenewal rate — share of policies the insurer declined to renew at expiration. Distinct from cancellation, which terminates a policy mid-term.
- Policy decile — ranking by total policy count in the ZIP, broken into 10 deciles for relative-size comparison.
Data sources and refresh cadence
PlainWater rankings are computed from the Treasury Federal Insurance Office (FIO) "Analyses of U.S. Homeowners Insurance Markets, 2018-2022" public release, joined with FEMA National Risk Index county-level hazard scores. The FIO report covers the calendar years 2018 through 2022. New FIO releases typically arrive 18-24 months after the close of the reporting year. We refresh PlainInsure data on every FIO release.