ZIP 80108 · Douglas County

Castle Rock, CO Homeowners Insurance

Homeowners insurance market metrics for ZIP 80108, Castle Rock, Colorado.

21.9%
Loss ratio
2.22%
Nonrenewal rate
#25 of 418
Colorado rank
245
Policies

The verdict

At $3,882/yr, Castle Rock, CO (ZIP 80108) sits in the 98th percentile nationally for homeowners insurance costs, 119% above the U.S. average.

$3,882
Avg premium (2022)
+119%
vs U.S. average
+14.8%
since 2018
98th
national percentile

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

Avg Premium (2022)
$3,882/yr
+14.8% since 2018
Loss Ratio
21.9%
Claims paid vs premiums
Claim Frequency
4.24%
Avg severity: $20,065
Nonrenewal Rate
2.22%
+207.6% change

Data Snapshot: ZIP 80108 (Castle Rock, CO)

ZIP 80108 (Castle Rock, CO) shows an average homeowners insurance premium of $3,882 per year as of 2022, based on U.S. Treasury FIO ZIP-level observations across approximately 245 reported policies. That is 119% above the national average of $1,776 per year, placing this ZIP in the 98th percentile nationally. Against Colorado's average of $2,591, ZIP 80108 is 50% above, ranking #25 of 418 tracked ZIPs in Colorado by premium. The closest-priced peer within Colorado is Littleton (ZIP 80121) at $3,868, essentially matching this ZIP's rate.

The loss ratio for ZIP 80108 is 21.9%, meaning insurers retained a working margin after claims. Claim frequency, the share of policies with at least one claim, is 4.24%, and the average claim severity (amount paid per claim) is $20,065. Insurers decline to renew 2.22% of policies in ZIP 80108 at expiration, a rise of 207.6% over the past five years; a rising rate typically signals carriers retreating from higher-risk markets.

Across 5 years (2018–2022), premiums in ZIP 80108 have risen by 14.8%, ranging from $3,381 to $3,882 with a five-year average of $3,567, an annualized rate of +3.5% 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 80108 Compares

vs National Average
$3,882 vs $1,776
119% above national avg
vs Colorado Average
$3,882 vs $2,591
50% above state avg
National Percentile
98th percentile
More expensive than most ZIPs

Premium History

Average premium in ZIP 80108, 2018–2022

$3,200$3,400$3,600$3,800$4,000 20182019202020212022 $3,882
Average homeowners premium per year in ZIP 80108.
Year Avg Premium YoY Change
2018 $3,381 -
2019 $3,408 +0.8%
2020 $3,548 +4.1%
2021 $3,617 +1.9%
2022 $3,882 +7.3%

5-Year Trend Summary

5-Year Avg Premium
$3,567
Premium Range
$3,381 - $3,882
Annual Change Rate
+3.5% per year
Years of Data
5 (2018-2022)

What this means for ZIP 80108

This ZIP runs well above the U.S. average, shop coverage actively and budget for it.

  • Compare ZIP 80108 against nearby ZIPs to spot where rates run lower. Compare ZIPs
  • See how Colorado compares to other states on premiums and nonrenewal. Colorado 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 80108?
ZIP 80108 (Castle Rock, CO) sits in the pricier end of the national market: homeowners insurance here averages $3,882 per year as of 2022, in the 98th percentile nationally, #25 of 418 ZIPs in Colorado. Premiums have changed +14.8% over the past 5 years.
What affects homeowners insurance costs in Castle Rock, CO?
In ZIP 80108, insurers report a 21.9% loss ratio, a 4.24% claims frequency, and a 2.22% nonrenewal rate, the 98th national percentile for cost.
Is homeowners insurance expensive in ZIP 80108 compared to the national average?
At $3,882/yr, ZIP 80108 runs 119% above the national average of $1,776/yr, the 98th percentile nationally.
What is the nonrenewal rate in ZIP 80108?
Insurers decline to renew 2.22% of policies in ZIP 80108 in Colorado, a rise of 207.6% over the past 5 years.
How have premiums trended in ZIP 80108 over 5 years?
Over 5 years (2018-2022), premiums in ZIP 80108 have ranged from $3,381 to $3,882, with a 5-year average of $3,567. The annualized change rate is +3.5% per year.
How does ZIP 80108 compare to the Colorado state average?
ZIP 80108 runs 50% above the Colorado state average ($2,591/yr vs this ZIP's $3,882/yr), ranking #25 of 418 tracked ZIPs in Colorado 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.