ZIP 20818 · Montgomery County

Cabin John, MD Homeowners Insurance

Homeowners insurance market metrics for ZIP 20818, Cabin John, Maryland.

40.4%
Loss ratio
0.50%
Nonrenewal rate
#18 of 422
Maryland rank
743
Policies

The verdict

Cabin John, MD (ZIP 20818) averages $2,486/yr for homeowners insurance, 40% above the U.S. average, placing it in the 89th percentile nationally.

$2,486
Avg premium (2022)
+40%
vs U.S. average
+13.6%
since 2018
89th
national percentile

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

Avg Premium (2022)
$2,486/yr
+13.6% since 2018
Loss Ratio
40.4%
Claims paid vs premiums
Claim Frequency
6.20%
Avg severity: $16,207
Nonrenewal Rate
0.50%

Data Snapshot: ZIP 20818 (Cabin John, MD)

U.S. Treasury FIO ZIP-level observations put the average homeowners insurance premium in ZIP 20818 (Cabin John, MD) at $2,486 per year for 2022 across approximately 743 reported policies. Nationally, that ranks ZIP 20818 in the 89th percentile, 40% above the U.S. average of $1,776 per year. Maryland homeowners pay $1,627 per year on average; this ZIP diverges by 53% (above), ranking #18 of 422 tracked ZIPs in Maryland by premium. The closest-priced peer within Maryland is Phoenix (ZIP 21131) at $2,475, essentially matching this ZIP's rate.

The loss ratio for ZIP 20818 is 40.4%, meaning insurers retained a working margin after claims. About 6.20% of policyholders in this ZIP file a claim annually, and the average claim severity (amount paid per claim) is $16,207. 0.50% of ZIP 20818 policies go unrenewed at expiration, a pattern that tends to precede broader insurer pullback in stressed markets.

Over the 2018–2022 window, ZIP 20818 premiums risen 13.6%, spanning $2,188 to $2,486 (five-year average: $2,342), an annualized rate of +3.2% 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 20818 Compares

vs National Average
$2,486 vs $1,776
40% above national avg
vs Maryland Average
$2,486 vs $1,627
53% above state avg
National Percentile
89th percentile
More expensive than most ZIPs

Premium History

Average premium in ZIP 20818, 2018–2022

$2,100$2,200$2,300$2,400$2,500$2,600 20182019202020212022 $2,486
Average homeowners premium per year in ZIP 20818.
Year Avg Premium YoY Change
2018 $2,188 -
2019 $2,222 +1.6%
2020 $2,392 +7.7%
2021 $2,423 +1.3%
2022 $2,486 +2.6%

5-Year Trend Summary

5-Year Avg Premium
$2,342
Premium Range
$2,188 - $2,486
Annual Change Rate
+3.2% per year
Years of Data
5 (2018-2022)

What this means for ZIP 20818

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

  • Put ZIP 20818 side by side with nearby ZIPs to see where you'd pay less. Compare ZIPs
  • See how Maryland compares to other states on premiums and nonrenewal. Maryland 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 20818?
Homeowners insurance runs above most of the country in ZIP 20818 (Cabin John, MD): $2,486/year as of 2022, the 89th national percentile, #18 of 422 ZIPs in Maryland. Premiums have changed +13.6% over the past 5 years.
What affects homeowners insurance costs in Cabin John, MD?
In ZIP 20818, insurers report a 40.4% loss ratio, a 6.20% claims frequency, and a 0.50% nonrenewal rate, the 89th national percentile for cost.
Is homeowners insurance expensive in ZIP 20818 compared to the national average?
At $2,486/yr, ZIP 20818 runs 40% above the national average of $1,776/yr, the 89th percentile nationally.
What is the nonrenewal rate in ZIP 20818?
Insurers decline to renew 0.50% of policies in ZIP 20818 in Maryland.
How have premiums trended in ZIP 20818 over 5 years?
Over the past 5 years, 2018 through 2022, the range in ZIP 20818 runs $2,188-$2,486 (5-year average $2,342). The annualized change rate is +3.2% per year.
How does ZIP 20818 compare to the Maryland state average?
ZIP 20818 runs 53% above the Maryland state average ($1,627/yr vs this ZIP's $2,486/yr), ranking #18 of 422 tracked ZIPs in Maryland 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.