ZIP 78231 · Bexar County

San Antonio, TX Homeowners Insurance

According to U.S. Treasury FIO 2022 filings, homeowners insurance in ZIP 78231, San Antonio, Texas averages $2,676/yr.

34.2%
Loss ratio
#312 of 1504
Texas rank
790
Policies

The verdict

ZIP 78231 (San Antonio, TX) homeowners insurance averages $2,676/yr, 92nd percentile nationally, 51% above the U.S. ZIP-code average.

$2,676
Avg premium (2022)
+51%
vs U.S. ZIP-code average
+12.1%
since 2018
92nd
national percentile

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

Insurance Livability Score

F
PlainInsure Livability Score
9/100
78231 - San Antonio, TX

PlainInsure's own composite of Treasury FIO premium/market data and FEMA National Risk Index hazard data, each dimension percentile-ranked against the full national corpus. Not an official government score, and not a substitute for an actual insurance quote.

Affordability F
$2,676/yr
Avg premium, 8th cheapest nationally (Treasury FIO)
Market Stability N/A
N/A
Nonrenewal rate -- insurers dropping coverage (Treasury FIO)
Disaster Risk F
99.4
County FEMA National Risk Index score
Community Resilience F
21.7
County FEMA NRI community-resilience score

Where ZIP 78231's premium sits nationally

Average annual homeowners premium across 25,593 tracked ZIP codes, as of 2022

$2,676 Higher than most more expensive than 92% of 25,593 ZIP codes

tracked ZIP codes, bucketed by value

Each bar is a $0.25K-wide band; taller bars hold more ZIP codes. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source U.S. Treasury Federal Insurance Office · 2022

Avg Premium (2022)
$2,676/yr
Above-median premium
+12.1% since 2018
Loss Ratio
34.2%
Near-median loss ratio
Claim Frequency
4.75%
Avg severity: $19,297
Nonrenewal Rate
N/A

Data Snapshot: ZIP 78231 (San Antonio, TX)

U.S. Treasury FIO ZIP-level observations put the average homeowners insurance premium in ZIP 78231 (San Antonio, TX) at $2,676 per year for 2022 across approximately 790 reported policies. That is 51% above the national average of $1,776 per year, placing this ZIP in the 92nd percentile nationally. Compared to the Texas state average of $2,349, this ZIP runs 14% above, ranking #312 of 1504 tracked ZIPs in Texas by premium. The closest-priced peer within Texas is Pottsboro (ZIP 75076) at $2,677, essentially matching this ZIP's rate.

ZIP 78231 shows a 34.2% loss ratio, an indication that insurers retained a working margin after claims. About 4.75% of policyholders in this ZIP file a claim annually, and the average claim severity (amount paid per claim) is $19,297.

Since 2018, premiums here have risen by 12.1% through 2022, ranging $2,387 to $2,676 with a 5-year average of $2,521, an annualized rate of +2.9% per year.

Bexar County carries a FEMA National Risk Index score of 99.4 (Relatively High), 99th percentile nationally and #3 of 245 Texas counties - 97% above the state mean of 50.5. Dominant mapped hazard: Tornado. Companion scores: Social Vulnerability Index 57.2 · Community Resilience 21.7. This is hazard context from FEMA, not a premium formula.

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 78231 Compares

vs National Average
$2,676 vs $1,776
51% above national avg
vs Texas Average
$2,676 vs $2,349
14% above state avg
National Percentile
92th percentile
More expensive than most ZIPs

Premium History

Average premium in ZIP 78231, 2018–2022

$2,300$2,400$2,500$2,600$2,700 20182019202020212022 $2,676
Average homeowners premium per year in ZIP 78231.
Year Avg Premium YoY Change
2018 $2,387 -
2019 $2,450 +2.6%
2020 $2,523 +3.0%
2021 $2,566 +1.7%
2022 $2,676 +4.3%

Filing-window snapshot: ZIP 78231, 2018-2022

5-Year Avg Premium
$2,521
Premium Range
$2,387 - $2,676
Annual Change Rate
+2.9% per year
Years of Data
5 (2018-2022)

Elevated FEMA NRI in Bexar County

County National Risk Index joined to ZIP 78231 via FIPS 48029. Hazard and vulnerability context from FEMA, not a premium driver and not a quote.

County risk score
99.4
Relatively High · 99th national percentile
In-state county rank
#3
of 245 Texas counties · state mean 50.5
Top mapped hazard
Tornado
Expected annual loss $124,133,912

Social Vulnerability Index 57.2 · Community Resilience 21.7

County hazard ratings

Wildfire
Relatively Moderate
Flooding
Very High
Earthquake
Relatively Low
Hurricane
Relatively Moderate
Tornado
Very High
Hail
Very High
Winter weather
Relatively High

Source: FEMA National Risk Index · state rollup: Texas NRI context · top counties by NRI score.

Out-of-state ZIPs near ZIP 78231's premium and nonrenewal (high-NRI county)

Cross-state peers for ZIP 78231: nearest FIO ZIPs by premium and by nonrenewal, drawn outside Texas. County hazard context (Bexar, NRI 99.4) is separate from these price peers.

Similar average premium

Nearest other-state ZIPs by average homeowners premium ($2,676/yr here).

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

Frequently Asked Questions

How much is homeowners insurance in ZIP 78231?
At the 92nd percentile nationally, #312 of 1504 ZIPs in Texas, ZIP 78231 (San Antonio, TX) ranks among the pricier markets for homeowners insurance, averaging $2,676 per year as of 2022. Premiums have changed +12.1% over the past 5 years.
What affects homeowners insurance costs in San Antonio, TX?
In ZIP 78231, insurers report a 34.2% loss ratio, a 4.75% claims frequency, and a N/A nonrenewal rate, the 92nd national percentile for cost.
Is homeowners insurance expensive in ZIP 78231 compared to the national average?
At $2,676/yr, ZIP 78231 runs 51% above the national average of $1,776/yr, the 92nd percentile nationally.
What is the nonrenewal rate in ZIP 78231?
Insurers decline to renew N/A of policies in ZIP 78231 in Texas.
How have premiums trended in ZIP 78231 over 5 years?
ZIP 78231 premiums spanned $2,387 to $2,676 across the 2018-2022 window, a 5-year average of $2,521. The annualized change rate is +2.9% per year.
How does ZIP 78231 compare to the Texas state average?
The Texas state average is $2,349/yr; ZIP 78231 averages $2,676/yr, 14% above that figure, ranking #312 of 1504 tracked ZIPs in Texas by premium.
What is the FEMA National Risk Index score for ZIP 78231?
Bexar County scores 99.4 on FEMA's National Risk Index (Relatively High), 99th percentile nationally and #3 of 245 Texas counties. The index's top hazard label is Tornado. Mapped hazard ratings include Wildfire Relatively Moderate, Flooding Very High, Earthquake Relatively Low, Hurricane Relatively Moderate. NRI is county hazard context, not a homeowners premium.

What to do with ZIP 78231

This ZIP's premiums run at the 92nd national percentile, but a single number is not a quote.

These figures are Treasury FIO aggregates for this ZIP, not a personal insurance quote.

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.