Home Insurance in Watertown, Massachusetts
The median home value in Watertown is $784,600, 8% higher than the Middlesex County median.
Aging wiring, roofing and plumbing in older homes can push up the cost to insure or rebuild them. The typical home in Watertown was built around 1947. About 63% of homes were built before 1960, about 16 points above Middlesex County's 48%.
The housing stock in Watertown is 27% single-family homes and 30% apartments in buildings with 5+ units. The rest are 2-4 unit or other housing types.
In Watertown, about 67% of owner-occupied homes have a mortgage - lenders require hazard insurance on every mortgaged home.
About 48% of occupied homes in Watertown are owner-occupied. The vacancy rate is 5%; vacant or unoccupied homes typically need a different coverage form than an owner-occupied policy.
In Watertown, 67% of homes 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.
In Massachusetts, the statewide average premium for a standard HO-3 homeowners policy is $2,134 per year (NAIC, 2023 data).
Key figures
| Median home value | $784,600 |
|---|---|
| Median year built | 1947 |
| Owner-occupied share | 48% |
| Share of owner-occupied homes with a mortgage | 67% |
| 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)