Key Biscayne Flag

Key Biscayne

County Seat:
No
Area (mi²):
1.247
State:
Florida

Key Biscayne is a village located in Miami-Dade County, Florida. Key Biscayne has a 2025 population of 15,202. Key Biscayne is currently growing at a rate of 0.6% annually and its population has increased by 3.09% since the most recent census, which recorded a population of 14,746 in 2020.

The average household income in Key Biscayne is $273,222 with a poverty rate of 7.73%. The median age in Key Biscayne is 43.1 years: 37.5 years for males, and 46.4 years for females.

15.2K
Total Population
12,188
Density (mi²)
91 0.6%
Growth

Key Biscayne Population

Key Biscayne Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Key Biscayne includes 45.33% White, and smaller percentages for other race, Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Two or more races (51.0%)

White (45.3%)

Other race (2.4%)

Black or African American (1.0%)

Asian (0.2%)

Native Hawaiian or Pacific Islander (0.1%)

Race
Population
Percentage (of total)
Two or more races7,43251.04%
White6,60045.33%
Other race3422.35%
Black or African American1400.96%
Asian320.22%
Native Hawaiian or Pacific Islander140.1%

Key Biscayne Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Key Biscayne's average per capita income is $87,091. Household income levels show a median of $172,604. The poverty rate stands at 7.73%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$250,001-
Families$241,454$321,865
Households$172,604$273,222
Non Families$53,929$105,007

$87,091

Average Income

$172,604

Median Household Income

7.73%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)