ZIP 01770 Insurance Data
Sherborn, Massachusetts · Middlesex County · 100 policies
Data Snapshot: ZIP 01770 (Sherborn, MA)
ZIP 01770 (Sherborn, MA) shows an average homeowners insurance premium of $3,063 per year as of 2022, based on U.S. Treasury FIO ZIP-level observations across approximately 100 reported policies. That is 73% above the national average of $1,776 per year, placing this ZIP in the 95th percentile nationally. Compared to the Massachusetts state average of $2,294, this ZIP runs 34% above, reflecting neighborhood-level differences in catastrophe exposure, property age, and claims history.
The loss ratio for ZIP 01770 is 87.8%, meaning insurers are operating on thin margins here. Claim frequency — the share of policies with at least one claim — is 5.46%, and the average claim severity (amount paid per claim) is $49,249. Nonrenewal — insurers declining to extend coverage at policy expiration — occurs at 0.56% in this ZIP, a drop of 57.4% over the past five years; rising nonrenewal often signals insurer retreat from high-risk markets.
Across 5 years (2018–2022), premiums in ZIP 01770 have risen by 4.0%, ranging from $2,946 to $3,126 with a five-year average of $3,049 — an annualized rate of +1.0% per year. 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 01770 Compares
Premium History
| Year | Avg Premium | YoY Change |
|---|---|---|
| 2018 | $2,946 | — |
| 2019 | $3,040 | +3.2% |
| 2020 | $3,126 | +2.8% |
| 2021 | $3,068 | -1.9% |
| 2022 | $3,063 | -0.2% |
5-Year Trend Summary
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Related Data
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 01770? ▼
What affects homeowners insurance costs in Sherborn, MA? ▼
Is homeowners insurance expensive in ZIP 01770 compared to the national average? ▼
What is the nonrenewal rate in ZIP 01770? ▼
How have premiums trended in ZIP 01770 over 5 years? ▼
How does ZIP 01770 compare to the Massachusetts state average? ▼
Read our methodology — how this data is sourced, computed, and verified.