Homeowners Insurance in San Mateo, CA
For a home at San Mateo's median value of $1,618,700, we estimate about $2,875 a year — +74% versus the California NAIC average of $1,655.
Estimated homeowners insurance cost in San Mateo
San Mateo's estimate reflects its home values (2.2 times the state median) and FEMA's hazard profile for San Mateo County. Many homes here are older, so roof age, wiring and plumbing updates can matter a lot at underwriting.
Natural hazard risk in San Mateo
| Hazard | Risk rating | Score (0–100) | Insurance impact |
|---|---|---|---|
| Hail | 11.4 | Comprehensive (car); roof claims (home) | |
| Tornado | 30.6 | Comprehensive; dwelling | |
| Hurricane | — | Comprehensive; wind/hurricane deductibles (home) | |
| Inland (river) flooding | 98.4 | Comprehensive; home needs a separate flood policy | |
| Coastal flooding | 91.8 | Comprehensive; home needs a separate flood policy | |
| Strong wind | 20.6 | Comprehensive; dwelling | |
| Winter weather | 3.4 | Collision (icy roads); frozen pipes (home) | |
| Wildfire | 92.0 | Comprehensive; dwelling | |
| Earthquake | 99.7 | Home needs a separate earthquake policy | |
| Lightning | 68.2 | Fire and electrical damage |
Scores are national percentiles of FEMA's county risk (higher means more expected loss than most other U.S. counties).
Estimated premium by home value in San Mateo
| Dwelling value | Wood frame | Brick / masonry |
|---|---|---|
| $200,000 | $540 | $495 |
| $300,000 | $745 | $685 |
| $500,000 | $1,125 | $1,035 |
| $750,000 | $1,555 | $1,430 |
Home Insurance Estimator
Homeowners insurance by ZIP code in San Mateo
| ZIP | Median home value | Owner-occupied | Est. premium |
|---|---|---|---|
| 94403 | $1,746,300 | 52.5% | $3,055 |
| 94401 | $1,184,500 | 43.4% | $2,240 |
| 94402 | $2,000,001 | 58.4% | $3,405 |
Homeowners insurance in California · Car insurance in San Mateo · Insurance offices near San Mateo
Frequently asked questions
How much is homeowners insurance in San Mateo?
For a home at San Mateo's median value of $1,618,700, we estimate about $2,875 a year for a standard HO-3 policy with a $1,000 deductible. The California NAIC average is $1,655.
What are the biggest natural hazards in San Mateo?
FEMA's National Risk Index rates San Mateo County relatively high or very high for inland (river) flooding, coastal flooding, and earthquake.
Does the age of homes in San Mateo affect insurance?
Yes. The median home in San Mateo was built in 1965 (Census ACS). Older roofs, wiring and plumbing can raise premiums or require inspections, while updates often earn discounts.
How we estimate this
We start from the NAIC average homeowners (HO-3) premium for California, scale it by the ratio of the dwelling value to the state median home value, adjust for construction type and deductible, and apply a hazard factor from FEMA National Risk Index scores for San Mateo County relative to the state. Results are rounded estimates, not quotes. Read the full methodology.
- NAIC Dwelling Fire, Homeowners Owner-Occupied, and Homeowners Tenant and Condominium/Cooperative Unit Owner's Insurance Report: Data for 2023 (July 2026), Tables 4 and 5 (HO-3 and HO-4 average premiums)
- FEMA National Risk Index (San Mateo County)
- U.S. Census Bureau, American Community Survey (home values, year built, tenure)