ZIP 91108 · Los Angeles County

San Marino, CA Homeowners Insurance

Homeowners insurance market metrics for ZIP 91108, San Marino, California.

21.9%
Loss ratio
1.16%
Nonrenewal rate
#166 of 1545
California rank
1,353
Policies

The verdict

Homeowners insurance in San Marino, CA (ZIP 91108) runs $2,803/yr on average: the 93rd percentile nationally and 58% above the U.S. average.

$2,803
Avg premium (2022)
+58%
vs U.S. average
+18.4%
since 2018
93rd
national percentile

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

Avg Premium (2022)
$2,803/yr
+18.4% since 2018
Loss Ratio
21.9%
Claims paid vs premiums
Claim Frequency
2.74%
Avg severity: $22,413
Nonrenewal Rate
1.16%
+57.4% change

Data Snapshot: ZIP 91108 (San Marino, CA)

ZIP 91108 (San Marino, CA) shows an average homeowners insurance premium of $2,803 per year as of 2022, based on U.S. Treasury FIO ZIP-level observations across approximately 1,353 reported policies. Against a national average of $1,776 per year, ZIP 91108 comes in 58% above, the 93rd percentile among all tracked ZIPs. Against California's average of $1,864, ZIP 91108 is 50% above, ranking #166 of 1545 tracked ZIPs in California by premium. The closest-priced peer within California is Coronado (ZIP 92118) at $2,799, essentially matching this ZIP's rate.

At a loss ratio of 21.9%, insurers retained a working margin after claims in this ZIP. Claim frequency, the share of policies with at least one claim, is 2.74%, and the average claim severity (amount paid per claim) is $22,413. The nonrenewal rate here is 1.16%, a rise of 57.4% over the past five years, the share of policies insurers choose not to extend at expiration, often a leading sign of market stress.

Across 5 years (2018–2022), premiums in ZIP 91108 have risen by 18.4%, ranging from $2,367 to $2,803 with a five-year average of $2,613, an annualized rate of +4.3% 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 91108 Compares

vs National Average
$2,803 vs $1,776
58% above national avg
vs California Average
$2,803 vs $1,864
50% above state avg
National Percentile
93th percentile
More expensive than most ZIPs

Premium History

Average premium in ZIP 91108, 2018–2022

$2,300$2,400$2,500$2,600$2,700$2,800$2,900 20182019202020212022 $2,803
Average homeowners premium per year in ZIP 91108.
Year Avg Premium YoY Change
2018 $2,367 -
2019 $2,498 +5.5%
2020 $2,610 +4.5%
2021 $2,786 +6.7%
2022 $2,803 +0.6%

5-Year Trend Summary

5-Year Avg Premium
$2,613
Premium Range
$2,367 - $2,803
Annual Change Rate
+4.3% per year
Years of Data
5 (2018-2022)

What this means for ZIP 91108

Costs here sit well above the national norm, budget accordingly and shop coverage actively.

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 91108?
Homeowners insurance runs above most of the country in ZIP 91108 (San Marino, CA): $2,803/year as of 2022, the 93rd national percentile, #166 of 1545 ZIPs in California. Premiums have changed +18.4% over the past 5 years.
What affects homeowners insurance costs in San Marino, CA?
Key cost drivers in ZIP 91108: a claims frequency of 2.74%, a loss ratio of 21.9%, and a nonrenewal rate of 1.16%, placing this ZIP in the 93rd percentile nationally for cost.
Is homeowners insurance expensive in ZIP 91108 compared to the national average?
ZIP 91108 premiums of $2,803/yr are 58% above the national average of $1,776/yr. This ZIP is in the 93rd percentile nationally.
What is the nonrenewal rate in ZIP 91108?
ZIP 91108 shows a nonrenewal rate of 1.16% in California, a rise of 57.4% over the past 5 years.
How have premiums trended in ZIP 91108 over 5 years?
ZIP 91108 premiums spanned $2,367 to $2,803 across the 2018-2022 window, a 5-year average of $2,613. The annualized change rate is +4.3% per year.
How does ZIP 91108 compare to the California state average?
ZIP 91108 has an average premium of $2,803/yr compared to the California state average of $1,864/yr. This ZIP is 50% above the state average, ranking #166 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.