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Text (352) 352-5665Key Biscayne, FL · Houses & Market Data
Key Biscayne, Florida houses and real estate market data.
Houses in Key Biscayne, FL (Miami-Dade County) — Census median home value $1,238,700, county listing prices down about 2.7% over the past year. Market data for Key Biscayne houses and the broader area.
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Key Biscayne, FL is in Miami-Dade County, Florida — this guide covers houses in Key Biscayne and the whole local market: resale homes, condos, land, and new construction. The most recent Census estimate puts the population at 14,560, with a median household income of $172,604. Census data puts Key Biscayne houses at a median value of $1,238,700 (all owner-occupied homes); Miami-Dade County's current median listing price runs $592,450, down about 2.7% over the past year.
Info from government sites and builders may have provided source info.
Market overview
Key Biscayne housing market
Key Biscayne is in Miami-Dade County, Florida. Manifest Census and county price-trend data provide baseline context for houses in Key Biscayne and the surrounding county market.
Median home value (Census ACS)
$1,238,700
Population (Census ACS)
14,560
Median household income
$172,604
County price trend (2025)
2.79% YoY
Population, income, and median home value from the project batch manifest (Census ACS 2023 5-year). County price trend from FHFA county HPI when present in the manifest row.
At a glance
Key Biscayne market snapshot
Population
14,560
County
Miami-Dade County
Median Household Income
$172,604
Median Home Value (city)
$1,238,700
Median Listing Price (Miami-Dade County)
$592,450
Median Gross Rent
$3,501/mo
Price Trend (YoY)
-2.7%
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. See About
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What makes Key Biscayne different
Home Value, By Source
The Census Bureau's American Community Survey (2023 5-year estimate) puts Key Biscayne's median home value — across all owner-occupied homes, not just recent sales — at $1,238,700. Separately, Miami-Dade County's current median listing price (via Realtor.com data, 2026-06-01) runs $592,450. These cover different geography (city vs. county) and different measures (assessed value vs. active listings), which is why we show both rather than picking one — full source list on our data sources page.
County Price Trend
Miami-Dade County's FHFA house price index shows a 2.79% annual change in 2025.
Population & Income
Key Biscayne has an estimated population of 14,560 and a median household income of $172,604, per the Census Bureau's American Community Survey (2023 5-year estimate).
Affordability Snapshot
Key Biscayne's Census-reported median home value works out to about 7.2x the area's median household income, and median gross rent runs roughly 24% of that same income on an annualized basis. Housing economists commonly flag a price-to-income ratio above 4x as historically elevated -- useful context, not a personal affordability verdict.
Nearby
Places around Key Biscayne
County guide: Miami-Dade County — cities, market context, and local resources for the county that includes Key Biscayne.
USAHouses.com also helps visitors looking in nearby Miami-Dade County and other Florida communities. Some locations may not yet have dedicated pages, but many licensed professionals in this region assist surrounding communities.
Nearby communities include Fisher Island, Coral Gables, Miami, South Miami, Miami Beach, Pinecrest, West Miami, Glenvar Heights, Coral Terrace, Brownsville, Palmetto Bay, North Bay Village, Olympia Heights, Gladeview, El Portal, Virginia Gardens.
Fisher Island market data
Nearby city · ~5.1 mi
Coral Gables market data
Nearby city · ~6.0 mi
Miami market data
Nearby city · ~6.4 mi
South Miami market data
Nearby city · ~8.2 mi
Miami Beach market data
Nearby city · ~8.3 mi
Pinecrest market data
Nearby city · ~8.8 mi
West Miami market data
Nearby city · ~9.4 mi
Glenvar Heights market data
Nearby city · ~9.4 mi
Coral Terrace market data
Nearby city · ~9.5 mi
Brownsville market data
Nearby city · ~10.2 mi
Palmetto Bay market data
Nearby city · ~10.7 mi
North Bay Village market data
Nearby city · ~11.0 mi
Olympia Heights market data
Nearby city · ~11.1 mi
Gladeview market data
Nearby city · ~11.3 mi
El Portal market data
Nearby city · ~11.5 mi
Virginia Gardens market data
Nearby city · ~11.6 mi
More Florida cities with market guides: St. Petersburg, Fort Lauderdale, Pembroke Pines, Hollywood, Gainesville, Miramar, Coral Springs, Lehigh Acres.
St. Petersburg market data
Same-state city guide
Fort Lauderdale market data
Same-state city guide
Pembroke Pines market data
Same-state city guide
Hollywood market data
Same-state city guide
Gainesville market data
Same-state city guide
Miramar market data
Same-state city guide
Coral Springs market data
Same-state city guide
Lehigh Acres market data
Same-state city guide
Adjacent-county Census places with USAHouses.com pages: West Park (~19.9 mi), Hallandale Beach (~20.3 mi), Pembroke Park (~20.6 mi), Miramar (~22.2 mi), Hollywood (~23.5 mi), Pembroke Pines (~24.9 mi), Dania Beach (~25.3 mi), Cooper City (~25.8 mi), Davie (~27.8 mi), Southwest Ranches (~28.0 mi), Broadview Park (~28.3 mi), Boulevard Gardens (~30.2 mi), Washington Park (~30.5 mi), Franklin Park (~30.5 mi), Plantation (~30.6 mi), Roosevelt Gardens (~31.1 mi).
New construction: New homes near Key Biscayne (Apopka) · New homes near Key Biscayne (Belleview) · Florida new construction.
Census & home facts
Key Biscayne data from published sources
Population (ACS 2023)
14,560
Median home value (ACS 2023)
$1,238,700
Median household income (ACS 2023)
$172,604
Median gross rent (ACS 2023)
$3,501
County FHFA annual change (2025)
2.79%
County median listing price (FRED/Realtor.com) (2026-06-01)
$592,450
Census place type
village
County
Miami-Dade County
Land area (Census Gazetteer 2024)
1.25 sq mi
Census GEOID
1236300
Census ACS, FHFA, and FRED figures are labeled with the year present in existing CSVs. Subject to change / confirm locally.
NewUSAHouses.com communities
Closest verified new-home communities near Key Biscayne
Availability and pricing are controlled by the builder and may change; confirm with the builder.
Villas De San Diego ↗
Lennar · Miami, Florida · ~6.0 mi · from $351,990
Capistrano ↗
D.R. Horton · Cutler Bay, Florida · ~14.2 mi · from $929,990
The Estates At Nomar ↗
GL Homes · Miami, Florida · ~15.9 mi
Breezewood ↗
Lennar · Miami, Florida · ~16.1 mi · from $417,990
Verdana Grove ↗
Lennar · Miami, Florida · ~16.6 mi · from $683,990
Local life
Life in Key Biscayne
Schools
MIAMI-DADE — 542 schools, 334,090 students enrolled, per the U.S. Department of Education's Common Core of Data. Miami-Dade addresses may be served by MIAMI-DADE, but attendance zones vary by street — confirm assigned schools with the district before making a move.
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Want to own this market? Ask about our Key Biscayne domains — see available domains ↗
Common questions
Key Biscayne FAQ
What are houses worth in Key Biscayne, FL?
The Census Bureau's American Community Survey puts the median value of houses in Key Biscayne at $1,238,700. Miami-Dade County's current median listing price runs $592,450, down about 2.7% over the past year.
How much do houses cost in Key Biscayne, FL?
For owner-occupied houses in Key Biscayne, Census ACS data shows a median value of $1,238,700. Active listing prices in Miami-Dade County may differ — see the market snapshot above.
What types of houses are in Key Biscayne, FL?
Key Biscayne houses include resale single-family homes, condos, mobile homes, and small multi-unit buildings, plus new construction in surrounding Miami-Dade County communities where builders are active. The housing-stock section below uses Census ACS structure counts when available for this city.
What is the population of Key Biscayne, FL?
The U.S. Census Bureau's American Community Survey (2023 5-year estimate) puts Key Biscayne's population at approximately 14,560.
What's the median rent in Key Biscayne, FL?
The Census ACS estimates median gross rent in Key Biscayne at approximately $3,501 per month.
What is the median household income in Key Biscayne, FL?
Census ACS data puts the median household income in Key Biscayne at approximately $172,604.
Is the Key Biscayne housing market growing?
Miami-Dade County's FHFA house price index shows a 2.79% annual change in 2025.
Is Key Biscayne, FL affordable relative to income?
Census ACS data puts Key Biscayne's median home value at about 7.2 times the median household income, with median gross rent equal to roughly 24% of that income annually. This is a general benchmark, not a personal pre-qualification -- your own income, debt, and down payment determine what you can actually afford.
What school district serves Key Biscayne, FL?
Manifest and public school-directory data suggest MIAMI-DADE for many Key Biscayne addresses, but attendance zones vary by street — verify your assigned schools with the district before making a move.
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