ZIP 57445 · Brown County

Groton, SD Homeowners Insurance

Homeowners insurance market metrics for ZIP 57445, Groton, South Dakota.

15.9%
Loss ratio
1.84%
Nonrenewal rate
#41 of 180
South Dakota rank
3
Policies

The verdict

At $1,989/yr, Groton, SD (ZIP 57445) sits in the 75th percentile nationally for homeowners insurance costs, 12% above the U.S. average.

$1,989
Avg premium (2022)
+12%
vs U.S. average
+20.7%
since 2018
75th
national percentile

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

Avg Premium (2022)
$1,989/yr
+20.7% since 2018
Loss Ratio
15.9%
Claims paid vs premiums
Claim Frequency
4.74%
Avg severity: $6,689
Nonrenewal Rate
1.84%

Data Snapshot: ZIP 57445 (Groton, SD)

ZIP 57445 (Groton, SD) shows an average homeowners insurance premium of $1,989 per year as of 2022, based on U.S. Treasury FIO ZIP-level observations across approximately 3 reported policies. That is 12% above the national average of $1,776 per year, placing this ZIP in the 75th percentile nationally. South Dakota homeowners pay $1,854 per year on average; this ZIP diverges by 7% (above), ranking #41 of 180 tracked ZIPs in South Dakota by premium. The closest-priced peer within South Dakota is Montrose (ZIP 57048) at $1,980, essentially matching this ZIP's rate.

At a loss ratio of 15.9%, insurers retained a working margin after claims in this ZIP. 4.74% of policies in ZIP 57445 file at least one claim in a given year, and the average claim severity (amount paid per claim) is $6,689. The nonrenewal rate here is 1.84%, the share of policies insurers choose not to extend at expiration, often a leading sign of market stress.

Since 2018, premiums here have risen by 20.7% through 2022, ranging $1,649 to $1,989 with a 5-year average of $1,796, an annualized rate of +4.8% 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 57445 Compares

vs National Average
$1,989 vs $1,776
12% above national avg
vs South Dakota Average
$1,989 vs $1,854
7% above state avg
National Percentile
75th percentile
Above median cost

Premium History

Average premium in ZIP 57445, 2018–2022

$1,600$1,700$1,800$1,900$2,000$2,100 20182019202020212022 $1,989
Average homeowners premium per year in ZIP 57445.
Year Avg Premium YoY Change
2018 $1,649 -
2019 $1,662 +0.8%
2020 $1,772 +6.6%
2021 $1,908 +7.7%
2022 $1,989 +4.2%

5-Year Trend Summary

5-Year Avg Premium
$1,796
Premium Range
$1,649 - $1,989
Annual Change Rate
+4.8% per year
Years of Data
5 (2018-2022)

What this means for ZIP 57445

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

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 57445?
ZIP 57445 (Groton, SD) tracks close to the national middle for homeowners insurance costs: $1,989 per year as of 2022 (75th percentile, #41 of 180 ZIPs in South Dakota). Premiums have changed +20.7% over the past 5 years.
What affects homeowners insurance costs in Groton, SD?
Key cost drivers in ZIP 57445: a claims frequency of 4.74%, a loss ratio of 15.9%, and a nonrenewal rate of 1.84%, placing this ZIP in the 75th percentile nationally for cost.
Is homeowners insurance expensive in ZIP 57445 compared to the national average?
ZIP 57445 premiums of $1,989/yr are 12% above the national average of $1,776/yr. This ZIP is in the 75th percentile nationally.
What is the nonrenewal rate in ZIP 57445?
The nonrenewal rate in ZIP 57445 is 1.84% in South Dakota.
How have premiums trended in ZIP 57445 over 5 years?
Over 5 years (2018-2022), premiums in ZIP 57445 have ranged from $1,649 to $1,989, with a 5-year average of $1,796. The annualized change rate is +4.8% per year.
How does ZIP 57445 compare to the South Dakota state average?
ZIP 57445 runs 7% above the South Dakota state average ($1,854/yr vs this ZIP's $1,989/yr), ranking #41 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.