ZIP 03878 · Strafford County
Somersworth, NH Homeowners Insurance
Homeowners insurance market metrics for ZIP 03878, Somersworth, New Hampshire.
- 20.2%
- Loss ratio
- 0.89%
- Nonrenewal rate
- #215 of 239
- New Hampshire rank
- 456
- Policies
The verdict
At $1,148/yr, Somersworth, NH (ZIP 03878) sits in the 19th percentile nationally for homeowners insurance costs, 35% below the U.S. average.
- $1,148
- Avg premium (2022)
- -35%
- vs U.S. average
- +2.5%
- since 2018
- 19th
- national percentile
According to U.S. Treasury Federal Insurance Office data. How we calculate the percentile and national comparison: methodology.
Data Snapshot: ZIP 03878 (Somersworth, NH)
Homeowners in ZIP 03878 (Somersworth, NH) pay an average of $1,148 per year for insurance as of 2022, according to U.S. Treasury FIO ZIP-level data across approximately 456 reported policies. The U.S. average sits at $1,776 per year, so this ZIP runs 35% below that mark and lands in the 19th national percentile. The New Hampshire statewide average is $1,428 per year; this ZIP sits 20% below that figure, ranking #215 of 239 tracked ZIPs in New Hampshire by premium. The closest-priced peer within New Hampshire is Lancaster (ZIP 03584) at $1,148, essentially matching this ZIP's rate.
The loss ratio for ZIP 03878 is 20.2%, meaning insurers retained a working margin after claims. The claim frequency here, the share of policies with at least one claim, stands at 2.92%, and the average claim severity (amount paid per claim) is $7,927. Nonrenewal, insurers declining to extend coverage at policy expiration, occurs at 0.89% in this ZIP, a drop of 55.6% over the past five years; rising nonrenewal often signals insurer retreat from high-risk markets.
Across 5 years (2018–2022), premiums in ZIP 03878 have risen by 2.5%, ranging from $1,119 to $1,148 with a five-year average of $1,131, an annualized rate of +0.6% 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 03878 Compares
Premium History
Average premium in ZIP 03878, 2018–2022
| Year | Avg Premium | YoY Change |
|---|---|---|
| 2018 | $1,119 | - |
| 2019 | $1,134 | +1.4% |
| 2020 | $1,131 | -0.3% |
| 2021 | $1,121 | -0.9% |
| 2022 | $1,148 | +2.4% |
5-Year Trend Summary
Similar ZIP Codes in New Hampshire
Other ZIPs in New Hampshire priced close to this one.
Insurance Guides
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What this means for ZIP 03878
Treat these figures as a starting benchmark, real quotes from carriers will vary.
- Compare ZIP 03878 against nearby ZIPs to spot where rates run lower. Compare ZIPs
- See how New Hampshire compares to other states on premiums and nonrenewal. New Hampshire overview
- Understand what loss ratio reveals about this area's insurance market. 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 03878? ▼
What affects homeowners insurance costs in Somersworth, NH? ▼
Is homeowners insurance expensive in ZIP 03878 compared to the national average? ▼
What is the nonrenewal rate in ZIP 03878? ▼
How have premiums trended in ZIP 03878 over 5 years? ▼
How does ZIP 03878 compare to the New Hampshire state average? ▼
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.