Home Insurance in Marlborough, Massachusetts
The median home value in Marlborough is $513,100, 29% lower than the Middlesex County median.
Because older housing stock often has aging wiring, roofing or plumbing, it can cost more to insure or rebuild. The typical home in Marlborough was built around 1974. About 30% of homes were built before 1960, about 18 points below Middlesex County's 48%.
The housing stock in Marlborough is 51% single-family homes, 29% apartments in buildings with 5+ units and 3% mobile or manufactured homes. The rest are 2-4 unit or other housing types. Mobile and manufactured homes typically need a manufactured-home (HO-7) policy rather than a standard homeowners policy.
In Marlborough, about 63% of owner-occupied homes have a mortgage - lenders require hazard insurance on every mortgaged home.
About 56% of occupied homes in Marlborough are owner-occupied. The vacancy rate is 3%; vacant or unoccupied homes typically need a different coverage form than an owner-occupied policy.
61% of homes in Marlborough are primarily heated with natural gas. Homes heated with fuel oil can carry added fire risk. Fuel-tank leaks and spills are often excluded from standard homeowners policies.
Middlesex County's top FEMA-rated hazard is inland flooding (Relatively High), per FEMA's National Risk Index. Middlesex County had 6,818 active NFIP flood policies as of September 2026. See the full Middlesex County home insurance overview for all FEMA hazard ratings and flood coverage details. Flood damage is excluded from a standard homeowners policy.
The statewide average premium for a standard HO-3 homeowners policy in Massachusetts is $2,134 per year, according to the NAIC homeowners insurance report (2023 data).
Key figures
| Median home value | $513,100 |
|---|---|
| Median year built | 1974 |
| Owner-occupied share | 56% |
| Share of owner-occupied homes with a mortgage | 63% |
| Top county hazard | Inland Flooding (Relatively High) |
| Active NFIP policies in Middlesex County | 6,818 |
| Home insurance premium | $2,134 - statewide average (NAIC, 2023 data) |
Nearby towns
Sources
Data last updated: 2026-09-29
- U.S. Census Bureau Gazetteer Files (2024)
- U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates (2024)
- FEMA National Risk Index (December 2025)
- FEMA OpenFEMA NFIP Redacted Policies v3 (2026)
- NAIC Dwelling Fire, Homeowners Owner-Occupied, and Homeowners Tenant and Condominium/Cooperative Unit Owners Insurance: Data for 2023 (published 2026) (2023)