ZIP 51535 · Cass County

Griswold, IA Homeowners Insurance

Homeowners insurance market metrics for ZIP 51535, Griswold, Iowa.

136.7%
Loss ratio
3.13%
Nonrenewal rate
#140 of 580
Iowa rank
5
Policies

The verdict

Griswold, IA (ZIP 51535) averages $1,712/yr for homeowners insurance, 4% below the U.S. average, placing it in the 61st percentile nationally.

$1,712
Avg premium (2022)
-4%
vs U.S. average
+15.1%
since 2018
61st
national percentile

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

Avg Premium (2022)
$1,712/yr
+15.1% since 2018
Loss Ratio
136.7%
Claims paid vs premiums
Claim Frequency
15.00%
Avg severity: $15,609
Nonrenewal Rate
3.13%
+14.1% change

Data Snapshot: ZIP 51535 (Griswold, IA)

ZIP 51535 (Griswold, IA) shows an average homeowners insurance premium of $1,712 per year as of 2022, based on U.S. Treasury FIO ZIP-level observations across approximately 5 reported policies. The U.S. average sits at $1,776 per year, so this ZIP runs 4% below that mark and lands in the 61st national percentile. Compared to the Iowa state average of $1,629, this ZIP runs 5% above, ranking #140 of 580 tracked ZIPs in Iowa by premium. The closest-priced peer within Iowa is Ackley (ZIP 50601) at $1,712, essentially matching this ZIP's rate.

With a loss ratio of 136.7%, insurers paid out more in claims than they collected, a signal that premiums may rise or carriers may exit in ZIP 51535. Claim frequency, the share of policies with at least one claim, is 15.00%, and the average claim severity (amount paid per claim) is $15,609. The nonrenewal rate here is 3.13%, a rise of 14.1% over the past five years, the share of policies insurers choose not to extend at expiration, often a leading sign of market stress.

Premium data spanning 5 years shows ZIP 51535 costs have risen 15.1% since 2018, from a low of $1,488 to a high of $1,712, an annualized rate of +3.6% 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 51535 Compares

vs National Average
$1,712 vs $1,776
4% below national avg
vs Iowa Average
$1,712 vs $1,629
5% above state avg
National Percentile
61th percentile
Above median cost

Premium History

Average premium in ZIP 51535, 2018–2022

$1,450$1,500$1,550$1,600$1,650$1,700$1,750 20182019202020212022 $1,712
Average homeowners premium per year in ZIP 51535.
Year Avg Premium YoY Change
2018 $1,488 -
2019 $1,514 +1.7%
2020 $1,569 +3.7%
2021 $1,654 +5.4%
2022 $1,712 +3.5%

5-Year Trend Summary

5-Year Avg Premium
$1,587
Premium Range
$1,488 - $1,712
Annual Change Rate
+3.6% per year
Years of Data
5 (2018-2022)

What this means for ZIP 51535

Use these averages as a benchmark, then get real quotes before you commit.

  • Compare ZIP 51535 against nearby ZIPs to spot where rates run lower. Compare ZIPs
  • Iowa's statewide premium and nonrenewal picture, compared to other states. Iowa overview
  • Loss ratio above 100% here signals rate pressure, read what that means for renewals. 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 51535?
At the 61st percentile nationally, #140 of 580 ZIPs in Iowa, ZIP 51535 (Griswold, IA) pays a middle-of-the-pack $1,712 per year as of 2022 for homeowners insurance. Premiums have changed +15.1% over the past 5 years.
What affects homeowners insurance costs in Griswold, IA?
Insurers in ZIP 51535 pay out more in claims than they collect, a loss ratio of 136.7%, alongside a claims frequency of 15.00% and a nonrenewal rate of 3.13%.
Is homeowners insurance expensive in ZIP 51535 compared to the national average?
At $1,712/yr, ZIP 51535 runs 4% below the national average of $1,776/yr, the 61st percentile nationally.
What is the nonrenewal rate in ZIP 51535?
ZIP 51535 shows a nonrenewal rate of 3.13% in Iowa, a rise of 14.1% over the past 5 years.
How have premiums trended in ZIP 51535 over 5 years?
ZIP 51535 premiums spanned $1,488 to $1,712 across the 2018-2022 window, a 5-year average of $1,587. The annualized change rate is +3.6% per year.
How does ZIP 51535 compare to the Iowa state average?
ZIP 51535 runs 5% above the Iowa state average ($1,629/yr vs this ZIP's $1,712/yr), ranking #140 of 580 tracked ZIPs in Iowa 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.