ZIP 58237 · Walsh County

Grafton, ND Homeowners Insurance

Homeowners insurance market metrics for ZIP 58237, Grafton, North Dakota.

40.1%
Loss ratio
0.88%
Nonrenewal rate
#63 of 87
North Dakota rank
8
Policies

The verdict

At $1,812/yr, Grafton, ND (ZIP 58237) sits in the 66th percentile nationally for homeowners insurance costs, 2% above the U.S. average.

$1,812
Avg premium (2022)
+2%
vs U.S. average
+13.6%
since 2018
66th
national percentile

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

Avg Premium (2022)
$1,812/yr
+13.6% since 2018
Loss Ratio
40.1%
Claims paid vs premiums
Claim Frequency
5.29%
Avg severity: $13,758
Nonrenewal Rate
0.88%
-38.6% change

Data Snapshot: ZIP 58237 (Grafton, ND)

Homeowners in ZIP 58237 (Grafton, ND) pay an average of $1,812 per year for insurance as of 2022, according to U.S. Treasury FIO ZIP-level data across approximately 8 reported policies. Against a national average of $1,776 per year, ZIP 58237 comes in 2% above, the 66th percentile among all tracked ZIPs. The North Dakota statewide average is $1,954 per year; this ZIP sits 7% below that figure, ranking #63 of 87 tracked ZIPs in North Dakota by premium. The closest-priced peer within North Dakota is Glen Ullin (ZIP 58631) at $1,817, essentially matching this ZIP's rate.

With a loss ratio of 40.1%, insurers retained a working margin after claims in ZIP 58237. The claim frequency here, the share of policies with at least one claim, stands at 5.29%, and the average claim severity (amount paid per claim) is $13,758. The nonrenewal rate here is 0.88%, a drop of 38.6% over the past five years, the share of policies insurers choose not to extend at expiration, often a leading sign of market stress.

Over the 2018–2022 window, ZIP 58237 premiums risen 13.6%, spanning $1,595 to $1,812 (five-year average: $1,693), 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 58237 Compares

vs National Average
$1,812 vs $1,776
2% above national avg
vs North Dakota Average
$1,812 vs $1,954
7% below state avg
National Percentile
66th percentile
Above median cost

Premium History

Average premium in ZIP 58237, 2018–2022

$1,550$1,600$1,650$1,700$1,750$1,800$1,850 20182019202020212022 $1,812
Average homeowners premium per year in ZIP 58237.
Year Avg Premium YoY Change
2018 $1,595 -
2019 $1,652 +3.6%
2020 $1,604 -2.9%
2021 $1,799 +12.1%
2022 $1,812 +0.7%

5-Year Trend Summary

5-Year Avg Premium
$1,693
Premium Range
$1,595 - $1,812
Annual Change Rate
+3.2% per year
Years of Data
5 (2018-2022)

What this means for ZIP 58237

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

  • Put ZIP 58237 side by side with nearby ZIPs to see where you'd pay less. Compare ZIPs
  • North Dakota's statewide premium and nonrenewal picture, compared to other states. North Dakota 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 58237?
ZIP 58237 (Grafton, ND) tracks close to the national middle for homeowners insurance costs: $1,812 per year as of 2022 (66th percentile, #63 of 87 ZIPs in North Dakota). Premiums have changed +13.6% over the past 5 years.
What affects homeowners insurance costs in Grafton, ND?
In ZIP 58237, insurers report a 40.1% loss ratio, a 5.29% claims frequency, and a 0.88% nonrenewal rate, the 66th national percentile for cost.
Is homeowners insurance expensive in ZIP 58237 compared to the national average?
Nationally, ZIP 58237 lands in the 66th percentile: its $1,812/yr average is 2% above the U.S. figure of $1,776/yr.
What is the nonrenewal rate in ZIP 58237?
ZIP 58237 shows a nonrenewal rate of 0.88% in North Dakota, a drop of 38.6% over the past 5 years.
How have premiums trended in ZIP 58237 over 5 years?
Over the past 5 years, 2018 through 2022, the range in ZIP 58237 runs $1,595-$1,812 (5-year average $1,693). The annualized change rate is +3.2% per year.
How does ZIP 58237 compare to the North Dakota state average?
ZIP 58237 runs 7% below the North Dakota state average ($1,954/yr vs this ZIP's $1,812/yr), ranking #63 of 87 tracked ZIPs in North 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.