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 2026 population of 15,293. Key Biscayne is currently growing at a rate of 0.6% annually and its population has increased by 3.71% since the most recent census, which recorded a population of 14,746 in 2020.

The median household income in Key Biscayne is $181,505 with a poverty rate of 5.47%. The median age in Key Biscayne is 42.2 years: 37.4 years for males, and 45.4 years for females. For every 100 females there are 99.7 males.

15.3K
Total Population
12,261
Density (mi²)
91 0.6%
Growth

Key Biscayne Population

Key Biscayne Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202615,293910.6%
202515,202910.6%
202415,1112211.48%
202314,8902371.62%
202214,6531260.87%
202114,527-219-1.49%
202014,746-59-0.4%
201912,819-85-0.66%
201812,904-72-0.55%
201712,976650.5%
201612,911860.67%
201512,825430.34%
201412,78270.05%
201312,775960.76%
201212,6791331.06%
201112,5462021.64%
201012,389450.36%
200010,50700%

Median Age

Overall: 42.2 years
Female: 45.4 years
Male: 37.4 years

Key Biscayne Adults

There are 10,089 adults, (2,317 of whom are seniors) in Key Biscayne.

Sex Ratio

Female: 7,406 (50.1%)
Male: 7,385 (49.9%)

Demographics

The racial composition of Key Biscayne includes 36.6% White, 3.7% other race, and smaller percentages for Black or African American, Asian, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
Two or more races8,68258.7%
White5,41436.6%
Other race5473.7%
Black or African American1160.78%
Asian210.14%
Native American110.07%
Race
Population ↓
Percentage (of total)
Two or more races7,84553.04%
White1,93913.11%
Other race5293.58%
Black or African American740.5%
Native American110.07%
Race
Population ↓
Percentage (of total)
White3,47523.49%
Two or more races8375.66%
Black or African American420.28%
Asian210.14%
Other race180.12%

Key Biscayne Marital Status

Economics and Income Statistics

Key Biscayne 's average per capita income is $87,265. Household income levels show a median of $181,505. The poverty rate stands at 5.47%.

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
Families$250,001$353,257
Married Families$250,001-
Households$181,505$309,291
Non Families$73,261$141,237

$87,265

Average Income

$181,505

Median Household Income

5.47%

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)