Data / Key Biscayne, FL / Profile

Key Biscayne, FL in figures

A profile of Key Biscayne, FL from official statistics: 10 figures in 3 sections, each with its period, its change from a year earlier, its rank among similar places where a ranking exists, and its source.

Figures last updated on 2026-10-12.

People

Population in Key Biscayne, FL was 14,815 in 2025, down 1% from 2024, and the 32nd lowest of 176 cities in Florida.

Population14,8152025Down 1% from 2024The 32nd lowest of 176 cities in Florida
Median age42.2 years2024Down 0.9 years from 2023Tied for the 86th highest of 176 cities in Florida
Foreign-born population share58.1%2024Down 0.5 percentage points from 2023The 6th highest of 176 cities in Florida
Bachelor's degree or higher, population 25 and over77.2%2024Up 2.8 percentage points from 2023
14.5K14.6K14.7K14.8K14.9K15K2020202120222023202420252020: 14,745 persons2021: 14,525 persons2022: 14,765 persons2023: 14,991 persons2024: 14,964 persons2025: 14,815 persons
Population, 2020 to 2025. persons. Source: U.S. Census Bureau, Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals).

Sources: U.S. Census Bureau, Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals); U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, American Community Survey 5-year estimates, table B15003: population 25 years and over with a bachelor's degree or higher as a percentage of the population 25 years and over, calculated with stored inputs, US cities (incorporated places of 10,000 or more). Population and demography statistics and rankings

Work and income

Median household income in Key Biscayne, FL was $181,505 in 2024, up 5.2% from 2023, and the 3rd highest of 176 cities in Florida.

Median household income$181,5052024Up 5.2% from 2023The 3rd highest of 176 cities in Florida
Gini index52.82024Down 0.8 points from 2023The 23rd highest of 176 cities in Florida
165K170K175K180K185K20212022202320242021: 167,990 USD2022: 173,015 USD2023: 172,604 USD2024: 181,505 USD
Median household income, 2021 to 2024. USD. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B19013: median household income in the past 12 months, US cities (incorporated places of 10,000 or more).

Sources: U.S. Census Bureau, American Community Survey 5-year estimates, table B19013: median household income in the past 12 months, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, American Community Survey 5-year estimates, table B19083: Gini index of household income inequality (coefficient multiplied by 100), US cities (incorporated places of 10,000 or more). Labor market statistics and rankings

Prices and housing

Median home value in Key Biscayne, FL was $1,575,300 in 2024, up 27.2% from 2023, and the highest of 176 cities in Florida.

Median home value$1,575,3002024Up 27.2% from 2023The highest of 176 cities in Florida
Median gross rent (monthly)$3,5012024, estimatedUnchanged from 2023The highest of 176 cities in Florida
Homeownership rate (US, housing units)66.6%2024Down 2.8 percentage points from 2023The 76th highest of 176 cities in Florida
Housing units authorized by building permits212025, estimatedDown 4.5% from 2024
1.2M1.3M1.4M1.5M1.6M20212022202320242021: 1,246,700 USD2022: 1,331,900 USD2023: 1,238,700 USD2024: 1,575,300 USD
Median home value, 2021 to 2024. USD. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25077: median value (dollars), owner-occupied housing units, US cities (incorporated places of 10,000 or more).

Sources: U.S. Census Bureau, American Community Survey 5-year estimates, table B25077: median value (dollars), owner-occupied housing units, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, American Community Survey 5-year estimates, table B25064: median gross rent (dollars), renter-occupied housing units paying cash rent, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: owner-occupied housing units as a percentage of occupied housing units, calculated with stored inputs, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, Building Permits Survey: final annual estimates of new privately owned housing units authorized by permit-issuing place, including imputation. Housing statistics and rankings

Sources and citations

Each figure comes from the table cited here. Cite the publisher; these citations include any notice the publisher requires.

  1. U.S. Census Bureau. Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-12.
  2. U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat. Retrieved 2026-10-12.
  3. U.S. Census Bureau. American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b05002.dat. Retrieved 2026-10-12.
  4. U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a bachelor's degree or higher as a percentage of the population 25 years and over, calculated with stored inputs, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Retrieved 2026-10-12.
  5. U.S. Census Bureau. American Community Survey 5-year estimates, table B19013: median household income in the past 12 months, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b19013.dat. Retrieved 2026-10-12.
  6. U.S. Census Bureau. American Community Survey 5-year estimates, table B19083: Gini index of household income inequality (coefficient multiplied by 100), US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b19083.dat. Retrieved 2026-10-12.
  7. U.S. Census Bureau. American Community Survey 5-year estimates, table B25077: median value (dollars), owner-occupied housing units, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25077.dat. Retrieved 2026-10-12.
  8. U.S. Census Bureau. American Community Survey 5-year estimates, table B25064: median gross rent (dollars), renter-occupied housing units paying cash rent, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25064.dat. Retrieved 2026-10-12.
  9. U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: owner-occupied housing units as a percentage of occupied housing units, calculated with stored inputs, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Retrieved 2026-10-12.
  10. U.S. Census Bureau. Building Permits Survey: final annual estimates of new privately owned housing units authorized by permit-issuing place, including imputation. https://www2.census.gov/econ/bps/Place/South%20Region/so2025a.txt. Retrieved 2026-10-12.

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