Key Biscayne, Florida Population 2020

13,307
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Key Biscayne is a city located in Florida. With a 2020 population of 13,307, it is the 149th largest city in Florida and the 2516th largest city in the United States. Key Biscayne is currently growing at a rate of 0.60% annually and its population has increased by 7.80% since the most recent census, which recorded a population of 12,344 in 2010. Spanning over 2 miles, Key Biscayne has a population density of 10,669 people per square mile.

The average household income in Key Biscayne is $230,319 with a poverty rate of 4.66%. The median rental costs in recent years comes to $2,448 per month, and the median house value is $1.22 Mn. The median age in Key Biscayne is 42 years, 41.3 years for males, and 43.3 years for females. For every 100 females there are 90.7 males.

Key Biscayne Demographics

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

  • White: 97.31%
  • Other race: 1.18%
  • Asian: 0.94%
  • Two or more races: 0.57%
  • Black or African American: 0.00%
  • Native American: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Key Biscayne, Florida is 13,307, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 13,149.The last official US Census in 2010 recorded the population at 12,344.

Key Biscayne, Florida Population 2020

Population by Race

Race Population Percentage
White12,70397.31%
Some Other Race1541.18%
Asian1230.94%
Two or More Races740.57%
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Key Biscayne Population Pyramid 2020

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Key Biscayne Median Age

42


Total

41.3


Male

43.3


Female

Key Biscayne Adults

There are 9,442 adults, (2,195 of whom are seniors) in Key Biscayne.

Key Biscayne Age Dependency

80.1

Age Dependency Ratio

30.3

Old Age Dependency Ratio

49.8

Child Dependency Ratio

Key Biscayne Sex Ratio

Female

6,846

52.44%

Male

6,208

47.56%

Key Biscayne Households and Families

Key Biscayne Renter vs Owner Occupied by Household Type

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Key Biscayne Household Types

Type Owner Renter
Married74.3%25.7%
Female71.7%28.3%
All71.1%28.9%
Non Family64.8%35.2%
Male34.3%65.7%

71.1%

Rate of Home Ownership

Type Count Average Size Owned
All4,3672.9971.1
Married2,8563.6574.3
Non Family1,0741.1164.8
Female3673.3871.7
Male702.7634.3

3.51

Average Family Size

2.99

Average Household Size

1.8%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

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Key Biscayne Education

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Education Attained Count Percentage
Less Than 9th Grade510.60%
9th to 12th Grade780.92%
High School Graduate6637.80%
Some College93210.96%
Associates Degree5266.19%
Bachelors Degree3,26038.34%
Graduate Degree2,99235.19%
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Key Biscayne Educational Attainment by Race

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Name Total High School Bachelors
Hispanic5,7025,6434,264
White2,7282,6581,959
Other Race929238
Asian646421
Multiple Races626213

The highest rate of high school graduation is among asian people with a rate of 100.00%.

The highest rate of bachelors degrees is among hispanic people with a rate of 74.78%.

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Name Average Male Female
Overall$64,110$102,711$41,030
Less Than High School$26,371$26,573$
High School Grad$31,750$40,962$30,750
Some College$30,717$32,344$30,216
Bachelors Degree$68,797$103,358$37,321
Graduate Degree$102,246$152,150$55,179

$64,110

Average Earnings

$102,711

Average Male

$41,030

Average Female

Key Biscayne Language

Key Biscayne Language by Age

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Key Biscayne Language

20.37% of Key Biscayne residents speak only English, while 79.63% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 69.88% of the population.

Key Biscayne Poverty

Key Biscayne Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic9,0154394.87%
White3,9191263.22%
Asian1234334.96%

4.66%

Overall Poverty Rate

2.35%

Male Poverty Rate

6.75%

Female Poverty Rate

Poverty in Key Biscayne

The race most likely to be in poverty in Key Biscayne is Asian, with 34.96% below the poverty level.

The race least likely to be in poverty in Key Biscayne is White, with 3.22% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.39%. Among those working part-time, it was 2.38%, and for those that did not work, the poverty rate was 9.30%.

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Name Poverty
High School20.36%
Less Than High School16.28%
Some College4.87%
Bachelors or Greater3.69%
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Name Poverty
Female Unemployed19.69%
Female Employed2.12%
Male Employed0.78%
Male Unemployed0.00%

Key Biscayne Income

Key Biscayne Income by Household Type

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Name Median Mean
Households$133,958$230,319
Families$168,656$263,567
Married Families$185,417-
Non Families$67,742$124,341
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Key Biscayne Marital Status

Key Biscayne Marital Status

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Marriage Rates

59.2%

Overall Marriage Rate

62.1%

Male Marriage Rate

56.7%

Female Marriage Rate

Key Biscayne Married by Age and Sex

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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

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Key Biscayne Veterans

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327

Number of Veterans

316

Male Veterans

11

Female Veterans

War Veterans
Vietnam125
World War II77
First Gulf War43
Korea36
Second Gulf War18
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Age Group Veterans
75+175
65 to 7494
35 to 5443
55 to 648
18 to 347
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Name Veterans % of Total
White3273.56%
Hispanic1011.58%

Key Biscayne Veterans by Education

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0.00%

Veteran Poverty Rate

27.52%

Veteran Disability Rate

Key Biscayne Employment Status

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59.5%

Labor Force Participation

56.8%

Employment Rate

4.4%

Unemployment Rate

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Origin of Non-Citizens

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

Origin of Naturalized Citizens

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27.82%

Born in Florida

48.75%

Native Born

51.25%

Foreign Born

27.09%

Non Citizen

24.16%

Naturalized

Place of Birth

48.75% of Key Biscayne residents were born in the United States, with 27.82% having been born in Florida. 27.09% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Year Population Growth Annual Growth Rate
202013,307790.60%
201913,228790.60%
201813,14930.02%
201713,146790.60%
201613,0671020.79%
201512,965540.42%
201412,91180.06%
201312,903950.74%
201212,8081351.07%
201112,6732842.29%
201012,3891,8821.66%
200010,5070.00%