ZIP 03837 · Belknap County
Gilmanton Iron Works, NH Homeowners Insurance
According to U.S. Treasury FIO 2022 filings, homeowners insurance in ZIP 03837, Gilmanton Iron Works, New Hampshire averages $1,187/yr.
- 7.7%
- Loss ratio
- 0.46%
- Nonrenewal rate
- #201 of 239
- New Hampshire rank
- 29
- Policies
The verdict
According to U.S. Treasury FIO 2022 filings, Gilmanton Iron Works, NH (ZIP 03837) ranks #19,958 of 25,593 ZIPs by average premium ($1,187/yr) but #18,421 of 21,752 by nonrenewal (0.46%). Cost rank is not withdrawal rank.
- $1,187
- Avg premium (2022)
- #19,958
- of 25,593 on premium
- #18,421
- of 21,752 on nonrenewal
- 22nd
- 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
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.
Where ZIP 03837's premium sits nationally
Average annual homeowners premium across 25,593 tracked ZIP codes, as of 2022
$1,187 Among the lowest lower than 78% 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 03837. Each other dot is a deterministic sample of ZIPs in New Hampshire, 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 03837; crosshairs: New Hampshire averages
Read the plotted ZIP values
- ZIP 03570 · Berlin $980/yr · 1.05%
- ZIP 03581 · Gorham $1,050/yr · 1.40%
- ZIP 03579 · Errol $1,087/yr · 1.89%
- ZIP 03740 · Bath $1,118/yr · 1.23%
- ZIP 03262 · North Woodstock $1,129/yr · 1.06%
- ZIP 03584 · Lancaster $1,148/yr · 0.39%
- ZIP 03303 · Concord $1,161/yr · 0.53%
- ZIP 03835 · Farmington $1,179/yr · 1.04%
- ZIP 03837 · Gilmanton Iron Works (this ZIP) $1,187/yr · 0.46%
- ZIP 03464 · Stoddard $1,188/yr · 1.16%
- ZIP 03830 · East Wakefield $1,205/yr · 1.24%
- ZIP 03246 · Laconia $1,209/yr · 0.60%
- ZIP 03598 · Whitefield $1,217/yr · 1.13%
- ZIP 03741 · Canaan $1,223/yr · 0.54%
- ZIP 03045 · Goffstown $1,229/yr · 0.52%
- ZIP 03222 · Bristol $1,240/yr · 0.96%
- ZIP 03285 · Thornton $1,244/yr · 1.03%
- ZIP 03064 · Nashua $1,249/yr · 1.07%
- ZIP 03230 · Danbury $1,264/yr · 0.54%
- ZIP 03470 · Winchester $1,276/yr · 0.67%
- ZIP 03104 · Manchester $1,292/yr · 0.81%
- ZIP 03773 · Newport $1,297/yr · 1.07%
- ZIP 03765 · Haverhill $1,315/yr · 0.61%
- ZIP 03038 · Derry $1,326/yr · 0.70%
- ZIP 03825 · Barrington $1,349/yr · 0.45%
- ZIP 03884 · Strafford $1,364/yr · 1.04%
- ZIP 03216 · Andover $1,374/yr · 0.51%
- ZIP 03242 · Henniker $1,379/yr · 0.95%
- ZIP 03875 · Silver Lake $1,390/yr · 1.08%
- ZIP 03852 · Milton Mills $1,398/yr · 0.77%
- ZIP 03278 · Warner $1,415/yr · 0.89%
- ZIP 03838 · Glen $1,424/yr · 0.78%
- ZIP 03858 · Newton $1,438/yr · 1.08%
- ZIP 03810 · Alton Bay $1,451/yr · 0.69%
- ZIP 03833 · Exeter $1,460/yr · 0.77%
- ZIP 03034 · Candia $1,481/yr · 0.63%
- ZIP 03043 · Francestown $1,489/yr · 1.26%
- ZIP 03076 · Pelham $1,495/yr · 0.88%
- ZIP 03450 · Harrisville $1,509/yr · 0.87%
- ZIP 03057 · Mont Vernon $1,546/yr · 1.03%
- ZIP 03031 · Amherst $1,568/yr · 0.84%
- ZIP 03036 · Chester $1,585/yr · 0.62%
- ZIP 03229 · Contoocook $1,639/yr · 0.94%
- ZIP 03827 · East Kingston $1,673/yr · 0.52%
- ZIP 03110 · Bedford $1,759/yr · 0.90%
- ZIP 03885 · Stratham $1,814/yr · 0.72%
- ZIP 03782 · Sunapee $1,850/yr · 1.25%
- ZIP 03844 · Hampton Falls $2,049/yr · 0.69%
- ZIP 03215 · Waterville Valley $2,208/yr · 0.90%
- ZIP 03854 · New Castle $2,630/yr · 0.35%
Data Snapshot: ZIP 03837 (Gilmanton Iron Works, NH)
Homeowners in ZIP 03837 (Gilmanton Iron Works, NH) pay an average of $1,187 per year for insurance as of 2022, according to U.S. Treasury FIO ZIP-level data across approximately 29 reported policies. That is 33% below the national average of $1,776 per year, placing this ZIP in the 22nd percentile nationally. The New Hampshire statewide average is $1,428 per year; this ZIP sits 17% below that figure, ranking #201 of 239 tracked ZIPs in New Hampshire by premium. The closest-priced peer within New Hampshire is Stoddard (ZIP 03464) at $1,188, essentially matching this ZIP's rate.
The loss ratio for ZIP 03837 is 7.7%, meaning insurers retained a working margin after claims. About 1.37% of policyholders in this ZIP file a claim annually, and the average claim severity (amount paid per claim) is $6,701. Insurers decline to renew 0.46% of policies in ZIP 03837 at expiration, a drop of 62.9% over the past five years; a rising rate typically signals carriers retreating from higher-risk markets.
Since 2018, premiums here have fallen by 3.4% through 2022, ranging $1,187 to $1,228 with a 5-year average of $1,211, an annualized rate of -0.8% per year.
Belknap County sits mid-band on FEMA NRI at 57.4 (Relatively Low), the 57th national percentile and #9 of 10 New Hampshire counties (18% below the 69.9 state mean). Dominant hazard: Lightning. Companion scores: Social Vulnerability Index 17.0 · Community Resilience 81.5. Hazard context, not a quote.
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 03837 Compares
Premium History
Average premium in ZIP 03837, 2018–2022
| Year | Avg Premium | YoY Change |
|---|---|---|
| 2018 | $1,228 | - |
| 2019 | $1,189 | -3.2% |
| 2020 | $1,224 | +3.0% |
| 2021 | $1,228 | +0.4% |
| 2022 | $1,187 | -3.4% |
2018-2022 premium path for ZIP 03837
Similar ZIP Codes in New Hampshire
ZIP codes with similar premium levels in New Hampshire.
One of 238 ZIP codes with premium data in New Hampshire, 9 are shown here.
FEMA NRI context for Belknap County
County National Risk Index joined to ZIP 03837 via FIPS 33001. Hazard and vulnerability context from FEMA, not a premium driver and not a quote.
Social Vulnerability Index 17.0 · Community Resilience 81.5
County hazard ratings
- Wildfire
- Very Low
- Flooding
- Relatively Low
- Earthquake
- Relatively Low
- Hurricane
- Relatively Low
- Tornado
- Relatively Low
- Hail
- Very Low
- Winter weather
- Relatively Moderate
Source: FEMA National Risk Index · state rollup: New Hampshire NRI context · top counties by NRI score.
Cross-state FIO peers for ZIP 03837 (outside New Hampshire)
Cross-state peers for ZIP 03837: nearest FIO ZIPs by premium and by nonrenewal, drawn outside New Hampshire. County hazard context (Belknap, NRI 57.4) is separate from these price peers.
Similar average premium
Nearest other-state ZIPs by average homeowners premium ($1,187/yr here).
Similar nonrenewal rate
Nearest other-state ZIPs by nonrenewal rate (0.46% here).
Insurance Guides
Compare, statewide view, and rankings from ZIP 03837
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 03837? ▼
What affects homeowners insurance costs in Gilmanton Iron Works, NH? ▼
Is homeowners insurance expensive in ZIP 03837 compared to the national average? ▼
What is the nonrenewal rate in ZIP 03837? ▼
How have premiums trended in ZIP 03837 over 5 years? ▼
How does ZIP 03837 compare to the New Hampshire state average? ▼
What is the FEMA National Risk Index score for ZIP 03837? ▼
What to do with ZIP 03837
This ZIP's premiums run at the 22nd national percentile, but a single number is not a quote.
- See how Gilmanton Iron Works, NH compares to every other ZIP in New Hampshire. New Hampshire overview
- Check the ZIPs ranked highest and lowest nationwide before assuming this one is typical. View rankings
- Look up a different ZIP code to compare rates directly. Search ZIP codes
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.