Home Insurance in Lake Grove, New York
With a median home value of $598,900, Lake Grove is close to the Suffolk County median.
Aging wiring, roofing and plumbing in older homes can push up the cost to insure or rebuild them. The typical home in Lake Grove was built around 1970. About 21% of homes were built before 1960, about 10 points below Suffolk County's 31%.
Housing in Lake Grove breaks down to 82% single-family homes and 16% apartments in buildings with 5+ units.
In Lake Grove, about 67% of owner-occupied homes have a mortgage - lenders require hazard insurance on every mortgaged home.
The vacancy rate is 2%; vacant or unoccupied homes typically need a different coverage form than an owner-occupied policy. About 77% of occupied homes in Lake Grove are owner-occupied.
Most homes in Lake Grove - 53% - are primarily heated with fuel oil. Homes heated with fuel oil can carry added fire risk. Fuel-tank leaks and spills are often excluded from standard homeowners policies.
What's the biggest home insurance risk near Lake Grove? FEMA's National Risk Index points to winter weather (Very High) in Suffolk County and Suffolk County had 28,345 active NFIP flood policies as of September 2026. See the full Suffolk County home insurance overview for all FEMA hazard ratings and flood coverage details.
According to the NAIC homeowners insurance report (2023 data), a standard HO-3 homeowners policy in New York carries a statewide average premium of $1,801 per year.
Key figures
| Median home value | $598,900 |
|---|---|
| Median year built | 1970 |
| Owner-occupied share | 77% |
| Share of owner-occupied homes with a mortgage | 67% |
| Top county hazard | Winter Weather (Very High) |
| Active NFIP policies in Suffolk County | 28,345 |
| Home insurance premium | $1,801 - statewide average (NAIC, 2023 data) |
Nearby towns
- Village of the Branch
- Head of the Harbor
- Poquott
- Port Jefferson
- Old Field
- Belle Terre
- Patchogue
- Bellport
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)