Key Biscayne, Florida Population 2023

15,547

Key Biscayne is a city located in Miami-Dade County Florida. With a 2023 population of 15,547, it is the 246th largest city in Florida and the 2892nd largest city in the United States.Key Biscayne is currently growing at a rate of 1.61% annually and its population has increased by 4.98% since the most recent census, which recorded a population of 14,809 in 2020. Spanning over 2 miles, Key Biscayne has a population density of 12,465 people per square mile.

The average household income in Key Biscayne is $226,086 with a poverty rate of 8.25%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Key Biscayne is 41.3 years, 37.2 years for males, and 43.5 years for females.

Key Biscayne Demographics

According to the most recent ACS, the racial composition of Key Biscayne was:

  • White: 78.45%
  • Two or more races: 19.17%
  • Other race: 1.8%
  • Asian: 0.28%
  • Native Hawaiian or Pacific Islander: 0.19%
  • Black or African American: 0.1%
  • Native American: 0%
The current population of Key Biscayne, Florida is 15,547 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 14,809.

Key Biscayne, Florida Population 2023

Population by Race

White

Two or more races

Other race

Asian

Native Hawaiian or Pacific Islander

Black or African American

Native American

Key Biscayne Population by Race

Key Biscayne Population Pyramid 2023

Key Biscayne Median Age

41.3

Total

37.2

Male

43.5

Female

Key Biscayne Adults

There are 8,814 adults, (1,799 of whom are seniors) in Key Biscayne.

Key Biscayne Age Dependency

83.4

Age Dependency Ratio

25.6

Old Age Dependency Ratio

57.8

Child Dependency Ratio

Key Biscayne Sex Ratio

Female6,62851.51%
Male6,23948.49%

Key Biscayne Population by Age

Key Biscayne Renter vs Owner Occupied by Household Type

3.57

Average Family Size

3.17

Average Household Size

69.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Key Biscayne Households and Families

Male

Female

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Key Biscayne Educational Attainment by Sex (over 25)

Key Biscayne Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

The highest rate of high school graduation is among black people with a rate of 100%.

The highest rate of bachelors degrees is among islander people with a rate of 100%.

Key Biscayne Educational Attainment by Race

All

Male

Female

$70,709

Average Earnings

$123,688

Average Male

$42,883

Average Female

Key Biscayne Earnings by Educational Attainment

Key Biscayne Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Key Biscayne Language

17.21% of Key Biscayne residents speak only English, while 82.79% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 72.93% of the population.

Key Biscayne Language

Key Biscayne Poverty by Race

rate

8.25%

Overall Poverty Rate

3.45%

Male Poverty Rate

8.6%

Female Poverty Rate

Poverty in Key Biscayne

The race most likely to be in poverty in Key Biscayne is Other, with 22.03% below the poverty level.

The race least likely to be in poverty in Key Biscayne is White, with 5.51% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.24%. Among those working part-time, it was 8.05%, and for those that did not work, the poverty rate was 10.48%.

Key Biscayne Poverty

Key Biscayne Poverty Rate by Education

Key Biscayne Poverty Rate by Employment Status and Sex

Key Biscayne Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

mean

median

Income by Household Type

Key Biscayne Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

60.9%

Overall Marriage Rate

65.8%

Male Marriage Rate

56.6%

Female Marriage Rate

Key Biscayne Married by Age and Sex

male

female

Key Biscayne Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Key Biscayne Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Key Biscayne Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

221

Number of Veterans

221

Male Veterans

Female Veterans

Key Biscayne Veterans by War

Key Biscayne Veterans by Age

count

Key Biscayne Veterans by Race

Key Biscayne Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

33.03%

Veteran Disability Rate

Key Biscayne Veterans by Education

LaborForceParticipation

60.2%

Labor Force Participation

57.5%

Employment Rate

4.6%

Unemployment Rate

Key Biscayne Employment by Age

LaborForceParticipation

Key Biscayne Employment by Race

LaborForceParticipation

Key Biscayne Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

22.69%

Born in Key Biscayne

39.27%

Native Born

47.62%

Foreign Born

27.62%

Non Citizen

20%

Naturalized

Place of Birth

39.27% of Key Biscayne residents were born in the United States, with 22.69% having been born in Florida. 27.62% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Key Biscayne Place of Birth

Note: data after 2020 is projected based on recent growth

Key Biscayne Population by Year