ZIP 78257 · Bexar County
San Antonio, TX Homeowners Insurance
Homeowners insurance market metrics for ZIP 78257, San Antonio, Texas.
- 52.6%
- Loss ratio
- #40 of 1504
- Texas rank
- 39
- Policies
The verdict
At $4,028/yr, San Antonio, TX (ZIP 78257) sits in the 98th percentile nationally for homeowners insurance costs, 127% above the U.S. average.
- $4,028
- Avg premium (2022)
- +127%
- vs U.S. average
- +18.5%
- since 2018
- 98th
- national percentile
According to U.S. Treasury Federal Insurance Office data. How we calculate the percentile and national comparison: methodology.
Data Snapshot: ZIP 78257 (San Antonio, TX)
ZIP 78257 (San Antonio, TX) shows an average homeowners insurance premium of $4,028 per year as of 2022, based on U.S. Treasury FIO ZIP-level observations across approximately 39 reported policies. Against a national average of $1,776 per year, ZIP 78257 comes in 127% above, the 98th percentile among all tracked ZIPs. Compared to the Texas state average of $2,349, this ZIP runs 71% above, ranking #40 of 1504 tracked ZIPs in Texas by premium. The closest-priced peer within Texas is Houston (ZIP 77042) at $4,033, essentially matching this ZIP's rate.
At a loss ratio of 52.6%, insurers retained a working margin after claims in this ZIP. The claim frequency here, the share of policies with at least one claim, stands at 3.78%, and the average claim severity (amount paid per claim) is $56,008.
Across 5 years (2018–2022), premiums in ZIP 78257 have risen by 18.5%, ranging from $3,400 to $4,028 with a five-year average of $3,641, 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 78257 Compares
Premium History
Average premium in ZIP 78257, 2018–2022
| Year | Avg Premium | YoY Change |
|---|---|---|
| 2018 | $3,400 | - |
| 2019 | $3,504 | +3.1% |
| 2020 | $3,555 | +1.5% |
| 2021 | $3,720 | +4.6% |
| 2022 | $4,028 | +8.3% |
5-Year Trend Summary
Similar ZIP Codes in Texas
These Texas ZIP codes carry similar average premiums to 78257.
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What this means for ZIP 78257
This ZIP runs well above the U.S. average, shop coverage actively and budget for it.
- Compare ZIP 78257 against nearby ZIPs to spot where rates run lower. Compare ZIPs
- Texas's statewide premium and nonrenewal picture, compared to other states. Texas overview
- Loss ratio explains a lot about this area's insurance market, here's how to read it. Loss ratio guide
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 78257? ▼
What affects homeowners insurance costs in San Antonio, TX? ▼
Is homeowners insurance expensive in ZIP 78257 compared to the national average? ▼
What is the nonrenewal rate in ZIP 78257? ▼
How have premiums trended in ZIP 78257 over 5 years? ▼
How does ZIP 78257 compare to the Texas state average? ▼
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.