ZIP 94598 · Contra Costa County

Walnut Creek, CA Homeowners Insurance

According to U.S. Treasury FIO 2022 filings, homeowners insurance in ZIP 94598, Walnut Creek, California averages $2,058/yr.

27.0%
Loss ratio
0.47%
Nonrenewal rate
#468 of 1545
California rank
654
Policies

The verdict

Treasury FIO 2022: Walnut Creek, CA sits #5,801 nationally on average premium ($2,058) versus #18,141 on nonrenewal rate (0.47%).

$2,058
Avg premium (2022)
#5,801
of 25,593 on premium
#18,141
of 21,752 on nonrenewal
77th
national percentile

Premium rank counts ZIPs with a reported average premium, highest first. Nonrenewal rank counts ZIPs with a reported nonrenewal rate, highest first. The two boards are different extracts.

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
37/100
94598 - Walnut Creek, CA

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
$2,058/yr
Avg premium, 23rd cheapest nationally (Treasury FIO)
Market Stability A-
0.00%
Nonrenewal rate -- insurers dropping coverage (Treasury FIO)
Disaster Risk F
99.5
County FEMA National Risk Index score
Community Resilience B-
67.8
County FEMA NRI community-resilience score

Where ZIP 94598's premium sits nationally

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

$2,058 Higher than most more expensive than 77% 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

The local market map

Premium and nonrenewal do not always move together

The highlighted dot is ZIP 94598. Each other dot is a deterministic sample of ZIPs in California, spread across the premium range. Crosshairs mark the published state averages, so this is a comparison of two reported measures, not a quote or a forecast.

State ZIP peer map

Highlighted: ZIP 94598; crosshairs: California averages

Lower premium / higher nonrenewalHigher on bothLower on bothHigher premium / lower nonrenewal$285.7$3249.8$6213.9$9178.0$12142.10.1%2.3%4.5%6.7%8.8%Average annual premiumNonrenewal rate
Source: U.S. Treasury FIO 2022 ZIP-level homeowners insurance filings. The matrix samples 50 ZIPs across the state premium distribution and retains this ZIP.
Read the plotted ZIP values
  • ZIP 92257 · Niland $825/yr · 2.67%
  • ZIP 93648 · Parlier $949/yr · 0.74%
  • ZIP 93204 · Avenal $995/yr · 0.72%
  • ZIP 92259 · Ocotillo $1,024/yr · 1.20%
  • ZIP 93033 · Oxnard $1,053/yr · 1.37%
  • ZIP 95360 · Newman $1,085/yr · 0.83%
  • ZIP 96090 · Tehama $1,101/yr · 1.79%
  • ZIP 92408 · San Bernardino $1,125/yr · 1.43%
  • ZIP 93591 · Palmdale $1,162/yr · 1.40%
  • ZIP 93906 · Salinas $1,186/yr · 1.02%
  • ZIP 93723 · Fresno $1,209/yr · 0.64%
  • ZIP 95678 · Roseville $1,223/yr · 0.90%
  • ZIP 92316 · Bloomington $1,248/yr · 2.03%
  • ZIP 92250 · Holtville $1,270/yr · 1.11%
  • ZIP 95926 · Chico $1,288/yr · 0.50%
  • ZIP 92356 · Lucerne Valley $1,310/yr · 1.55%
  • ZIP 94014 · Daly City $1,334/yr · 0.59%
  • ZIP 93704 · Fresno $1,358/yr · 0.99%
  • ZIP 95119 · San Jose $1,383/yr · 0.51%
  • ZIP 94551 · Livermore $1,419/yr · 0.67%
  • ZIP 94303 · Palo Alto $1,452/yr · 0.60%
  • ZIP 90601 · Whittier $1,492/yr · 1.30%
  • ZIP 92614 · Irvine $1,533/yr · 0.79%
  • ZIP 93449 · Pismo Beach $1,569/yr · 1.03%
  • ZIP 94531 · Antioch $1,616/yr · 0.69%
  • ZIP 93010 · Camarillo $1,648/yr · 1.47%
  • ZIP 92021 · El Cajon $1,700/yr · 2.22%
  • ZIP 92069 · San Marcos $1,739/yr · 1.58%
  • ZIP 90039 · Los Angeles $1,785/yr · 0.86%
  • ZIP 90028 · Los Angeles $1,834/yr · 1.29%
  • ZIP 91007 · Arcadia $1,887/yr · 1.07%
  • ZIP 95453 · Lakeport $1,922/yr · 0.71%
  • ZIP 93551 · Palmdale $1,982/yr · 1.72%
  • ZIP 96044 · Hornbrook $2,033/yr · 3.83%
  • ZIP 94598 · Walnut Creek (this ZIP) $2,058/yr · 0.47%
  • ZIP 95310 · Columbia $2,090/yr · 2.15%
  • ZIP 95916 · Berry Creek $2,131/yr · 8.45%
  • ZIP 95252 · Valley Springs $2,221/yr · 2.53%
  • ZIP 96121 · Milford $2,286/yr · 1.12%
  • ZIP 92028 · Fallbrook $2,350/yr · 2.62%
  • ZIP 95722 · Meadow Vista $2,408/yr · 6.95%
  • ZIP 94956 · Point Reyes Station $2,473/yr · 1.01%
  • ZIP 93601 · Ahwahnee $2,573/yr · 6.64%
  • ZIP 93921 · Carmel By The Sea $2,689/yr · 0.78%
  • ZIP 95922 · Camptonville $2,840/yr · 3.66%
  • ZIP 92061 · Pauma Valley $2,985/yr · 5.56%
  • ZIP 93924 · Carmel Valley $3,217/yr · 3.08%
  • ZIP 91316 · Encino $3,557/yr · 1.60%
  • ZIP 94133 · San Francisco $4,336/yr · 1.72%
  • ZIP 90210 · Beverly Hills $11,603/yr · 4.67%
Avg Premium (2022)
$2,058/yr
Above-median premium
+25.9% since 2018
Loss Ratio
27.0%
Near-median loss ratio
Claim Frequency
2.95%
Avg severity: $18,848
Nonrenewal Rate
0.47%
Below-median nonrenewal rate
+110.5% change

Data Snapshot: ZIP 94598 (Walnut Creek, CA)

ZIP 94598 (Walnut Creek, CA) shows an average homeowners insurance premium of $2,058 per year as of 2022, based on U.S. Treasury FIO ZIP-level observations across approximately 654 reported policies. Nationally, that ranks ZIP 94598 in the 77th percentile, 16% above the U.S. average of $1,776 per year. California homeowners pay $1,864 per year on average; this ZIP diverges by 10% (above), ranking #468 of 1545 tracked ZIPs in California by premium. The closest-priced peer within California is Greenview (ZIP 96037) at $2,059, essentially matching this ZIP's rate.

At a loss ratio of 27.0%, insurers retained a working margin after claims in this ZIP. Claim frequency, the share of policies with at least one claim, is 2.95%, and the average claim severity (amount paid per claim) is $18,848. The nonrenewal rate here is 0.47%, a rise of 110.5% 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 94598 have risen by 25.9%, ranging from $1,635 to $2,058 with a five-year average of $1,880, an annualized rate of +5.9% per year.

Contra Costa County carries a FEMA National Risk Index score of 99.5 (Very High), 99th percentile nationally and #9 of 58 California counties - 12% above the state mean of 88.7. Dominant mapped hazard: Earthquake. Companion scores: Social Vulnerability Index 21.5 · Community Resilience 67.8. 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 94598 Compares

vs National Average
$2,058 vs $1,776
16% above national avg
vs California Average
$2,058 vs $1,864
10% above state avg
National Percentile
77th percentile
More expensive than most ZIPs

Premium History

Average premium in ZIP 94598, 2018–2022

$1,600$1,700$1,800$1,900$2,000$2,100 20182019202020212022 $2,058
Average homeowners premium per year in ZIP 94598.
Year Avg Premium YoY Change
2018 $1,635 -
2019 $1,748 +6.9%
2020 $1,935 +10.6%
2021 $2,022 +4.5%
2022 $2,058 +1.8%

Rising-cost window for ZIP 94598 (5 filing years)

5-Year Avg Premium
$1,880
Premium Range
$1,635 - $2,058
Annual Change Rate
+5.9% per year
Years of Data
5 (2018-2022)

Elevated FEMA NRI in Contra Costa County

County National Risk Index joined to ZIP 94598 via FIPS 06013. Hazard and vulnerability context from FEMA, not a premium driver and not a quote.

County risk score
99.5
Very High · 99th national percentile
In-state county rank
#9
of 58 California counties · state mean 88.7
Top mapped hazard
Earthquake
Expected annual loss $518,775,051

Social Vulnerability Index 21.5 · Community Resilience 67.8

County hazard ratings

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

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

Cross-state FIO peers for a higher-NRI ZIP (Contra Costa County)

Two FIO peer sets for ZIP 94598 in Contra Costa County (NRI 99.5, hazard Earthquake), both outside California. Population floor ≥1,000 matches the rate rankings.

Similar average premium

Nearest other-state ZIPs by average homeowners premium ($2,058/yr here).

Similar nonrenewal rate

Nearest other-state ZIPs by nonrenewal rate (0.47% 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 94598?
Homeowners insurance in ZIP 94598 (Walnut Creek, CA) averages $2,058 per year as of 2022, close to the national median at the 77th percentile, #468 of 1545 ZIPs in California. Premiums have changed +25.9% over the past 5 years.
What affects homeowners insurance costs in Walnut Creek, CA?
Three figures shape homeowners insurance costs in ZIP 94598: claims frequency (2.95%), loss ratio (27.0%), and nonrenewal rate (0.47%), together placing this ZIP at the 77th national percentile for cost.
Is homeowners insurance expensive in ZIP 94598 compared to the national average?
At $2,058/yr, ZIP 94598 runs 16% above the national average of $1,776/yr, the 77th percentile nationally.
What is the nonrenewal rate in ZIP 94598?
ZIP 94598 shows a nonrenewal rate of 0.47% in California, a rise of 110.5% over the past 5 years.
How have premiums trended in ZIP 94598 over 5 years?
ZIP 94598 premiums spanned $1,635 to $2,058 across the 2018-2022 window, a 5-year average of $1,880. The annualized change rate is +5.9% per year.
How does ZIP 94598 compare to the California state average?
The California state average is $1,864/yr; ZIP 94598 averages $2,058/yr, 10% above that figure, ranking #468 of 1545 tracked ZIPs in California by premium.
What is the FEMA National Risk Index score for ZIP 94598?
Contra Costa County scores 99.5 on FEMA's National Risk Index (Very High), 99th percentile nationally and #9 of 58 California counties. The index's top hazard label is Earthquake. Mapped hazard ratings include Wildfire Relatively Moderate, Flooding Very High, Earthquake Relatively High, Tornado Relatively Low. NRI is county hazard context, not a homeowners premium.

What to do with ZIP 94598

This ZIP's premiums run at the 77th 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.