Home Insurance in Key Biscayne, Florida
Homes in Key Biscayne carry a median value of $1,575,300 - 240% higher than the Miami-Dade County median.
The typical home in Key Biscayne was built around 1977. About 10% of homes were built before 1960, about 11 points below Miami-Dade County's 21%. Older homes can cost more to insure or rebuild because of aging wiring, roofing and plumbing.
Housing in Key Biscayne breaks down to 22% single-family homes, 77% apartments in buildings with 5+ units and 1% mobile or manufactured homes.
47% of owner-occupied homes in Key Biscayne carry a mortgage, and mortgage lenders require hazard insurance for as long as the loan is active.
The vacancy rate is 32%; vacant or unoccupied homes typically need a different coverage form than an owner-occupied policy. About 67% of occupied homes in Key Biscayne are owner-occupied.
Most homes in Key Biscayne - 87% - are primarily heated with electricity.
FEMA rates Miami-Dade County's overall risk as Very High, led by hurricane (Very High). Miami-Dade County had 355,123 active NFIP flood policies as of September 2026. See the full Miami-Dade 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 Florida carries a statewide average premium of $2,779 per year.
Key figures
| Median home value | $1,575,300 |
|---|---|
| Median year built | 1977 |
| Owner-occupied share | 67% |
| Share of owner-occupied homes with a mortgage | 47% |
| Top county hazard | Hurricane (Very High) |
| Active NFIP policies in Miami-Dade County | 355,123 |
| Home insurance premium | $2,779 - 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)