ZIP 94402 · San Mateo County

San Mateo, CA Homeowners Insurance

Homeowners insurance market metrics for ZIP 94402, San Mateo, California.

25.4%
Loss ratio
0.52%
Nonrenewal rate
#489 of 1545
California rank
1,903
Policies

The verdict

San Mateo, CA (ZIP 94402) averages $2,026/yr for homeowners insurance, 14% above the U.S. average, placing it in the 76th percentile nationally.

$2,026
Avg premium (2022)
+14%
vs U.S. average
+13.4%
since 2018
76th
national percentile

According to U.S. Treasury Federal Insurance Office data. How we calculate the percentile and national comparison: methodology.

Avg Premium (2022)
$2,026/yr
+13.4% since 2018
Loss Ratio
25.4%
Claims paid vs premiums
Claim Frequency
1.96%
Avg severity: $26,255
Nonrenewal Rate
0.52%
+89.3% change

Data Snapshot: ZIP 94402 (San Mateo, CA)

U.S. Treasury FIO ZIP-level observations put the average homeowners insurance premium in ZIP 94402 (San Mateo, CA) at $2,026 per year for 2022 across approximately 1,903 reported policies. Against a national average of $1,776 per year, ZIP 94402 comes in 14% above, the 76th percentile among all tracked ZIPs. Against California's average of $1,864, ZIP 94402 is 9% above, ranking #489 of 1545 tracked ZIPs in California by premium. The closest-priced peer within California is Montara (ZIP 94037) at $2,025, essentially matching this ZIP's rate.

The loss ratio for ZIP 94402 is 25.4%, meaning insurers retained a working margin after claims. The claim frequency here, the share of policies with at least one claim, stands at 1.96%, and the average claim severity (amount paid per claim) is $26,255. Nonrenewal, insurers declining to extend coverage at policy expiration, occurs at 0.52% in this ZIP, a rise of 89.3% over the past five years; rising nonrenewal often signals insurer retreat from high-risk markets.

Across 5 years (2018–2022), premiums in ZIP 94402 have risen by 13.4%, ranging from $1,786 to $2,082 with a five-year average of $1,963, an annualized rate of +3.2% per year.

How to read these numbers

The figures on this page come from the U.S. Treasury Federal Insurance Office, which collects homeowners insurance premium and claims data directly from the largest property insurers in the country. Because the data is aggregated at the ZIP-code level and averaged across many policies, it describes the typical cost in an area rather than a quote for any single home. Two houses on the same street can pay very different premiums depending on their age, construction type, roof condition, prior claims, and the specific coverage limits and deductibles the homeowner selects. The loss ratio shows how much of every premium dollar insurers paid back out as claims; a ratio above one means carriers lost money locally, which often precedes rate increases or carrier exits. Rising nonrenewal and claim frequency reveal how stressed the local market has become. Use these figures to gauge the direction and scale of costs in your area, then request quotes from several licensed carriers before buying or renewing a policy. FIO data aggregates voluntary reporting from the 40 largest homeowners insurers, covering roughly 80% of the U.S. market, so figures represent market averages rather than individual policy quotes; your own premium will vary with dwelling value, deductible, coverage limits, construction type, and insurer-specific underwriting. This page is educational research only and is not insurance advice, homeowners should request quotes from multiple licensed carriers or an independent agent before purchasing or renewing coverage.

How ZIP 94402 Compares

vs National Average
$2,026 vs $1,776
14% above national avg
vs California Average
$2,026 vs $1,864
9% above state avg
National Percentile
76th percentile
More expensive than most ZIPs

Premium History

Average premium in ZIP 94402, 2018–2022

$1,700$1,800$1,900$2,000$2,100 20182019202020212022 $2,026
Average homeowners premium per year in ZIP 94402.
Year Avg Premium YoY Change
2018 $1,786 -
2019 $1,908 +6.8%
2020 $2,013 +5.5%
2021 $2,082 +3.4%
2022 $2,026 -2.7%

5-Year Trend Summary

5-Year Avg Premium
$1,963
Premium Range
$1,786 - $2,082
Annual Change Rate
+3.2% per year
Years of Data
5 (2018-2022)

What this means for ZIP 94402

Use these averages as a benchmark, then get real quotes before you commit.

FIO figures are ZIP-level market averages across the largest insurers (~80% of the market), not a quote for any single home. Request quotes from multiple licensed carriers before buying or renewing.

Source: U.S. Department of the Treasury, Federal Insurance Office (FIO) Homeowners Insurance Data (2018-2022). Premiums are ZIP-level averages and may not reflect individual policy costs U.S. Department of the Treasury, Federal Insurance Office (FIO) Homeowners Insurance Data (2018-2022). Premiums are ZIP-level averages and may not reflect individual policy costs

Frequently Asked Questions

How much is homeowners insurance in ZIP 94402?
Homeowners insurance in ZIP 94402 (San Mateo, CA) averages $2,026 per year as of 2022, close to the national median at the 76th percentile, #489 of 1545 ZIPs in California. Premiums have changed +13.4% over the past 5 years.
What affects homeowners insurance costs in San Mateo, CA?
Key cost drivers in ZIP 94402: a claims frequency of 1.96%, a loss ratio of 25.4%, and a nonrenewal rate of 0.52%, placing this ZIP in the 76th percentile nationally for cost.
Is homeowners insurance expensive in ZIP 94402 compared to the national average?
Nationally, ZIP 94402 lands in the 76th percentile: its $2,026/yr average is 14% above the U.S. figure of $1,776/yr.
What is the nonrenewal rate in ZIP 94402?
The nonrenewal rate in ZIP 94402 is 0.52%, a rise of 89.3% over the past 5 years in California.
How have premiums trended in ZIP 94402 over 5 years?
ZIP 94402 premiums spanned $1,786 to $2,082 across the 2018-2022 window, a 5-year average of $1,963. The annualized change rate is +3.2% per year.
How does ZIP 94402 compare to the California state average?
ZIP 94402 runs 9% above the California state average ($1,864/yr vs this ZIP's $2,026/yr), ranking #489 of 1545 tracked ZIPs in California by premium.

Every figure on PlainInsure is rendered directly from U.S. Treasury Federal Insurance Office data, no number is typed in by an editor. This page draws directly on U.S. Treasury FIO data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.