ZIP 57730 · Custer County

Custer, SD Homeowners Insurance

Homeowners insurance market metrics for ZIP 57730, Custer, South Dakota.

91.3%
Loss ratio
0.95%
Nonrenewal rate
#20 of 180
South Dakota rank
3
Policies

The verdict

Custer, SD (ZIP 57730) averages $2,283/yr for homeowners insurance, 29% above the U.S. average, placing it in the 84th percentile nationally.

$2,283
Avg premium (2022)
+29%
vs U.S. average
+19.4%
since 2018
84th
national percentile

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

Avg Premium (2022)
$2,283/yr
+19.4% since 2018
Loss Ratio
91.3%
Claims paid vs premiums
Claim Frequency
7.99%
Avg severity: $26,102
Nonrenewal Rate
0.95%
+118.0% change

Data Snapshot: ZIP 57730 (Custer, SD)

For 2022, the average cost of homeowners insurance in ZIP 57730 (Custer, SD) runs $2,283 per year, based on U.S. Treasury FIO's ZIP-level tracking across approximately 3 reported policies. The U.S. average sits at $1,776 per year, so this ZIP runs 29% above that mark and lands in the 84th national percentile. South Dakota homeowners pay $1,854 per year on average; this ZIP diverges by 23% (above), ranking #20 of 180 tracked ZIPs in South Dakota by premium. The closest-priced peer within South Dakota is Ipswich (ZIP 57451) at $2,283, essentially matching this ZIP's rate.

ZIP 57730 shows a 91.3% loss ratio, an indication that insurers are operating on thin margins here. The claim frequency here, the share of policies with at least one claim, stands at 7.99%, and the average claim severity (amount paid per claim) is $26,102. Insurers decline to renew 0.95% of policies in ZIP 57730 at expiration, a rise of 118.0% over the past five years; a rising rate typically signals carriers retreating from higher-risk markets.

Over the 2018–2022 window, ZIP 57730 premiums risen 19.4%, spanning $1,899 to $2,283 (five-year average: $2,056), an annualized rate of +4.5% 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 57730 Compares

vs National Average
$2,283 vs $1,776
29% above national avg
vs South Dakota Average
$2,283 vs $1,854
23% above state avg
National Percentile
84th percentile
More expensive than most ZIPs

Premium History

Average premium in ZIP 57730, 2018–2022

$1,800$1,900$2,000$2,100$2,200$2,300$2,400 20182019202020212022 $2,283
Average homeowners premium per year in ZIP 57730.
Year Avg Premium YoY Change
2018 $1,912 -
2019 $1,899 -0.7%
2020 $2,003 +5.5%
2021 $2,181 +8.8%
2022 $2,283 +4.7%

5-Year Trend Summary

5-Year Avg Premium
$2,056
Premium Range
$1,899 - $2,283
Annual Change Rate
+4.5% per year
Years of Data
5 (2018-2022)

What this means for ZIP 57730

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

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 57730?
ZIP 57730 (Custer, SD) sits in the pricier end of the national market: homeowners insurance here averages $2,283 per year as of 2022, in the 84th percentile nationally, #20 of 180 ZIPs in South Dakota. Premiums have changed +19.4% over the past 5 years.
What affects homeowners insurance costs in Custer, SD?
Three figures shape homeowners insurance costs in ZIP 57730: claims frequency (7.99%), loss ratio (91.3%), and nonrenewal rate (0.95%), together placing this ZIP at the 84th national percentile for cost.
Is homeowners insurance expensive in ZIP 57730 compared to the national average?
Nationally, ZIP 57730 lands in the 84th percentile: its $2,283/yr average is 29% above the U.S. figure of $1,776/yr.
What is the nonrenewal rate in ZIP 57730?
ZIP 57730 shows a nonrenewal rate of 0.95% in South Dakota, a rise of 118.0% over the past 5 years.
How have premiums trended in ZIP 57730 over 5 years?
Over 5 years (2018-2022), premiums in ZIP 57730 have ranged from $1,899 to $2,283, with a 5-year average of $2,056. The annualized change rate is +4.5% per year.
How does ZIP 57730 compare to the South Dakota state average?
ZIP 57730 runs 23% above the South Dakota state average ($1,854/yr vs this ZIP's $2,283/yr), ranking #20 of 180 tracked ZIPs in South Dakota 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.