ZIP 57445 · Brown County

Groton, SD Homeowners Insurance

According to U.S. Treasury FIO 2022 filings, homeowners insurance in ZIP 57445, Groton, South Dakota averages $1,989/yr.

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

The verdict

ZIP 57445 (Groton, SD) is #6,433 of 25,593 for homeowners premium and #3,342 of 21,752 for nonrenewal, per 2022 FIO filings. The two ranks do not match.

$1,989
Avg premium (2022)
#6,433
of 25,593 on premium
#3,342
of 21,752 on nonrenewal
75th
national percentile

Premium rank counts ZIPs with a reported average premium, highest first. Nonrenewal rank counts ZIPs with a reported nonrenewal rate, highest first. The two boards are different extracts.

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

Insurance Livability Score

F
PlainInsure Livability Score
36/100
57445 - Groton, SD

PlainInsure's own composite of Treasury FIO premium/market data and FEMA National Risk Index hazard data, each dimension percentile-ranked against the full national corpus. Not an official government score, and not a substitute for an actual insurance quote.

Affordability F
$1,989/yr
Avg premium, 25th cheapest nationally (Treasury FIO)
Market Stability F
0.02%
Nonrenewal rate -- insurers dropping coverage (Treasury FIO)
Disaster Risk F
73.5
County FEMA National Risk Index score
Community Resilience A
85.6
County FEMA NRI community-resilience score

Where ZIP 57445's premium sits nationally

Average annual homeowners premium across 25,593 tracked ZIP codes, as of 2022

$1,989 Around the middle lower than 25% of 25,593 ZIP codes

tracked ZIP codes, bucketed by value

Each bar is a $0.25K-wide band; taller bars hold more ZIP codes. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source U.S. Treasury Federal Insurance Office · 2022

The local market map

Premium and nonrenewal do not always move together

The highlighted dot is ZIP 57445. Each other dot is a deterministic sample of ZIPs in South Dakota, spread across the premium range. Crosshairs mark the published state averages, so this is a comparison of two reported measures, not a quote or a forecast.

State ZIP peer map

Highlighted: ZIP 57445; crosshairs: South Dakota averages

Lower premium / higher nonrenewalHigher on bothLower on bothHigher premium / lower nonrenewal$1272.9$1698.6$2124.3$2550.0$2975.70%1.2%2.5%3.7%4.9%Average annual premiumNonrenewal rate
Source: U.S. Treasury FIO 2022 ZIP-level homeowners insurance filings. The matrix samples 50 ZIPs across the state premium distribution and retains this ZIP.
Read the plotted ZIP values
  • ZIP 57226 · Clear Lake $1,350/yr · 0.23%
  • ZIP 57317 · Bonesteel $1,479/yr · 2.44%
  • ZIP 57376 · Tripp $1,535/yr · 2.27%
  • ZIP 57382 · Wessington Springs $1,547/yr · 1.18%
  • ZIP 57368 · Plankinton $1,558/yr · 4.68%
  • ZIP 57456 · Leola $1,572/yr · 1.85%
  • ZIP 57332 · Emery $1,596/yr · 2.88%
  • ZIP 57522 · Blunt $1,617/yr · 2.38%
  • ZIP 57274 · Webster $1,629/yr · 0.67%
  • ZIP 57273 · Waubay $1,646/yr · 1.55%
  • ZIP 57375 · Stickney $1,667/yr · 1.75%
  • ZIP 57544 · Kennebec $1,672/yr · 1.39%
  • ZIP 57212 · Arlington $1,692/yr · 0.22%
  • ZIP 57350 · Huron $1,705/yr · 0.83%
  • ZIP 57380 · Wagner $1,723/yr · 3.10%
  • ZIP 57367 · Pickstown $1,745/yr · 0.92%
  • ZIP 57036 · Hurley $1,752/yr · 1.27%
  • ZIP 57384 · Wolsey $1,756/yr · 0.69%
  • ZIP 57103 · Sioux Falls $1,762/yr · 1.28%
  • ZIP 57106 · Sioux Falls $1,776/yr · 1.15%
  • ZIP 57442 · Gettysburg $1,781/yr · 0.27%
  • ZIP 57580 · Winner $1,786/yr · 1.31%
  • ZIP 57325 · Chamberlain $1,790/yr · 0.71%
  • ZIP 57223 · Castlewood $1,803/yr · 0.77%
  • ZIP 57355 · Kimball $1,808/yr · 0.67%
  • ZIP 57735 · Edgemont $1,811/yr · 1.68%
  • ZIP 57063 · Tabor $1,843/yr · 1.47%
  • ZIP 57078 · Yankton $1,854/yr · 0.88%
  • ZIP 57017 · Colman $1,875/yr · 1.24%
  • ZIP 57252 · Milbank $1,896/yr · 0.93%
  • ZIP 57069 · Vermillion $1,898/yr · 1.54%
  • ZIP 57020 · Crooks $1,912/yr · 4.14%
  • ZIP 57701 · Rapid City $1,926/yr · 1.62%
  • ZIP 57276 · White $1,950/yr · 0.78%
  • ZIP 57501 · Pierre $1,956/yr · 1.27%
  • ZIP 57268 · Toronto $1,964/yr · 3.57%
  • ZIP 57048 · Montrose $1,980/yr · 1.08%
  • ZIP 57445 · Groton (this ZIP) $1,989/yr · 1.84%
  • ZIP 57034 · Hudson $2,008/yr · 1.06%
  • ZIP 57032 · Harrisburg $2,031/yr · 1.49%
  • ZIP 57319 · Bridgewater $2,062/yr · 0.76%
  • ZIP 57717 · Belle Fourche $2,111/yr · 1.21%
  • ZIP 57532 · Fort Pierre $2,168/yr · 1.28%
  • ZIP 57718 · Black Hawk $2,223/yr · 1.97%
  • ZIP 57451 · Ipswich $2,283/yr · 0.83%
  • ZIP 57761 · New Underwood $2,333/yr · 3.89%
  • ZIP 57754 · Lead $2,401/yr · 1.44%
  • ZIP 57751 · Keystone $2,492/yr · 1.83%
  • ZIP 57793 · Whitewood $2,584/yr · 1.28%
  • ZIP 57759 · Nemo $2,898/yr · 1.97%
Avg Premium (2022)
$1,989/yr
Above-median premium
+20.7% since 2018
Loss Ratio
15.9%
Below-median loss ratio
Claim Frequency
4.74%
Avg severity: $6,689
Nonrenewal Rate
1.84%
Above-median nonrenewal rate

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.

Brown County carries a FEMA National Risk Index score of 73.5 (Relatively Low), 74th percentile nationally and #4 of 60 South Dakota counties - 164% above the state mean of 27.9. Dominant mapped hazard: Cold Wave. Companion scores: Social Vulnerability Index 24.1 · Community Resilience 85.6. This is hazard context from FEMA, not a premium formula.

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%

Filing-window snapshot: ZIP 57445, 2018-2022

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)

Elevated FEMA NRI in Brown County

County National Risk Index joined to ZIP 57445 via FIPS 46013. Hazard and vulnerability context from FEMA, not a premium driver and not a quote.

County risk score
73.5
Relatively Low · 74th national percentile
In-state county rank
#4
of 60 South Dakota counties · state mean 27.9
Top mapped hazard
Cold Wave
Expected annual loss $16,354,723

Social Vulnerability Index 24.1 · Community Resilience 85.6

County hazard ratings

Wildfire
Relatively Low
Flooding
Relatively Low
Earthquake
Very Low
Tornado
Relatively Moderate
Hail
Relatively Moderate
Winter weather
Very High

Source: FEMA National Risk Index · state rollup: South Dakota NRI context · top counties by NRI score.

Nationwide insurance peers outside South Dakota for ZIP 57445

ZIP 57445's county NRI is 73.5 (Relatively Low). Peer ZIPs below are other-state only so the neighborhoods are not South Dakota containment.

Similar average premium

Nearest other-state ZIPs by average homeowners premium ($1,989/yr here).

Similar nonrenewal rate

Nearest other-state ZIPs by nonrenewal rate (1.84% here).

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

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.
What is the FEMA National Risk Index score for ZIP 57445?
Brown County scores 73.5 on FEMA's National Risk Index (Relatively Low), 74th percentile nationally and #4 of 60 South Dakota counties. The index's top hazard label is Cold Wave. Mapped hazard ratings include Wildfire Relatively Low, Flooding Relatively Low, Earthquake Very Low, Tornado Relatively Moderate. NRI is county hazard context, not a homeowners premium.

What to do with ZIP 57445

This ZIP's premiums run at the 75th national percentile, but a single number is not a quote.

These figures are Treasury FIO aggregates for this ZIP, not a personal insurance quote.

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.