Home Insurance in SeaTac, Washington
Homes in SeaTac carry a median value of $519,700 - 40% lower than the King County median.
The typical home in SeaTac was built around 1972. About 25% of homes were built before 1960, about 2 points above King County's 23%. Because older housing stock often has aging wiring, roofing or plumbing, it can cost more to insure or rebuild.
Mobile and manufactured homes typically need a manufactured-home (HO-7) policy rather than a standard homeowners policy. The housing stock in SeaTac is 45% single-family homes, 43% apartments in buildings with 5+ units and 5% mobile or manufactured homes.
In SeaTac, about 63% of owner-occupied homes have a mortgage - lenders require hazard insurance on every mortgaged home.
The vacancy rate is 6%; vacant or unoccupied homes typically need a different coverage form than an owner-occupied policy. About 46% of occupied homes in SeaTac are owner-occupied.
Most homes in SeaTac - 66% - are primarily heated with electricity.
King County's top FEMA-rated hazard is earthquake (Very High), per FEMA's National Risk Index. King County had 6,820 active NFIP flood policies as of September 2026. See the full King County home insurance overview for all FEMA hazard ratings and flood coverage details. Earthquake damage is excluded from a standard homeowners policy.
According to the NAIC homeowners insurance report (2023 data), a standard HO-3 homeowners policy in Washington carries a statewide average premium of $1,232 per year.
Key figures
| Median home value | $519,700 |
|---|---|
| Median year built | 1972 |
| Owner-occupied share | 46% |
| Share of owner-occupied homes with a mortgage | 63% |
| Top county hazard | Earthquake (Very High) |
| Active NFIP policies in King County | 6,820 |
| Home insurance premium | $1,232 - 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)