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CITY · 2020 ACS

Key Biscayne

Florida · 14,809 residents · 1.25 sq mi
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The short version

Key Biscayne is home to 14,809 people in Florida. That is roughly 189% ahead of the Florida median. This is an unusually credentialed place: 74% of adults have a four-year degree. The typical home is worth $1,430,100, having more than tripled since 2000. The median household earns $166,667, about 151% above the national median. The foreign-born share is 55%.

At a glance
Wealthier
above the US median
US median: $66,278
Older
median age 43.4
US median: 38.8
More educated
74% hold a bachelor's degree
US average: 33%
Less affordable
home values up 144%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

14,809
+41%since 2000
from 10,507 in 2000
1990 – 2025
43.4
+8%since 2000
from 40.1 in 2000
US average: 38.8
Land area
1.25 sq mi
Population, 19902024
8K10K12K14K15K19902000201020202024Key Biscayne
202415K
1990201020202024
Age distribution, 2020
Under 54.5%(672)
US avg: 5.6%
5 to 97.4%(1,098)
US avg: 6.1%
10 to 1410.3%(1,518)
US avg: 6.5%
15 to 198.2%(1,221)
US avg: 6.6%
20 to 245%(744)
US avg: 6.7%
25 to 345.3%(782)
US avg: 13.5%
35 to 4412.1%(1,788)
US avg: 12.7%
45 to 5417.1%(2,535)
US avg: 12.3%
55 to 6412.3%(1,823)
US avg: 13.1%
65 to 748.6%(1,272)
US avg: 10%
75 to 846.5%(960)
US avg: 4.9%
85 and over2.7%(396)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$166,667
+28%inflation adjusted, since 2000
from $86,599 in 2000
US average: $66,278
1990 – 2024
$78,732
+45%since 2000
from $54,213 in 2000
US average: $35,364
Households earning $100K+
73.5%
+10.0 ptssince 2009
from 63.5% in 2009
US average: 43.9%
6.1%
−2.2 ptssince 2000
from 8.3% in 2000
US average: 12.8%
Workforce by industry, 2020
Other services28.5%
US avg: 6.6%
Public administration14.6%
US avg: 4.7%
Arts, entertainment, food4.9%
US avg: 2%
Information4.7%
US avg: 11.1%
Transportation & warehousing4.5%
US avg: 2.5%
Wholesale trade4%
US avg: 6.7%
Finance & insurance2.6%
US avg: 5.5%
Retail trade2.5%
US avg: 10%
Professional, scientific, technical2.4%
US avg: 4.7%
Agriculture, forestry, fishing0.2%
US avg: 1.7%
Construction0.2%
US avg: 1.2%
Education & health services0.2%
US avg: 0.8%
Manufacturing0%
US avg: 0.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

$1,430,100
+144%inflation adjusted, since 2000
from $390,400 in 2000
US average: $265,253
1990 – 2024
$2,584
+3%inflation adjusted, since 2000
from $1,674 in 2000
US average: $1,124
66.4%
−4.4 ptssince 2000
from 70.8% in 2000
33.6% rent
3.17 people
+21%since 2009
from 2.61 people in 2009
US average: 2.61
8.6
+8%since 2009
from 7.9 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04

Race & ethnicity

2000
White, non-Hispanic48.1%(5,058)
Black0.3%(28)
Hispanic / Latino49.8%(5,231)
Asian0.9%(93)
Other0%
2020
White, non-Hispanic26.9%(3,979)
Black0.2%(27)
Hispanic / Latino66.8%(9,888)
Asian0.7%(106)
Other0.9%(134)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
South American36.5%(4,698)
Cuban14.9%(1,917)
Colombian11.9%(1,530)
Argentine9.3%(1,195)
Venezuelan8.4%(1,084)
Spaniard7.8%(1,009)
Mexican6.5%(837)
Peruvian4.1%(528)
Puerto Rican2.8%(358)
Chilean1.7%(219)
Nicaraguan1.3%(171)
+ 8 more hispanic origin groups with data
Guatemalan1.1%(142)
Uruguayan0.7%(95)
Salvadoran0.6%(72)
Costa Rican0.3%(43)
Honduran0.3%(39)
Bolivian0.3%(39)
Panamanian0.1%(13)
Paraguayan0.1%(8)
Asian origin
Chinese0.1%(18)
Japanese0.1%(12)
Pacific Islander origin
Chamorro0.2%(25)
Ancestry
Italian6%(766)
German5.3%(688)
American3.2%(412)
Irish3%(386)
Brazilian2.7%(343)
French2.6%(329)
English2.4%(304)
British1.2%(154)
Polish1%(135)
Scottish0.9%(119)
Lithuanian0.9%(117)
Swiss0.9%(115)
+ 28 more ancestry groups with data
Portuguese0.9%(113)
Russian0.8%(107)
Austrian0.8%(102)
Canadian0.6%(76)
Greek0.4%(53)
Hungarian0.4%(46)
Ukrainian0.3%(44)
Swedish0.2%(30)
Slovak0.2%(29)
Romanian0.2%(28)
Guyanese0.2%(23)
Australian0.1%(16)
Danish0.1%(16)
Dutch0.1%(14)
West Indian0.1%(13)
Jamaican0.1%(13)
Bulgarian0.1%(12)
Scotch-Irish0.1%(11)
Croatian0.1%(9)
Latvian0.1%(9)
Lebanese0.1%(8)
Belgian0.1%(7)
Israeli0.1%(7)
Turkish0.1%(7)
Welsh0%(6)
Section 05

Education

73.7%
+8.8 ptssince 2000
from 64.9% in 2000
US average: 32.9%
High school or higher
97.3%
+2.3 ptssince 2000
from 95.0% in 2000
US average: 88.5%
35.7%
+4.4 ptssince 2000
from 31.4% in 2000
US average: 12.7%
Section 06

Commute & transportation

27.1 min
+82%since 2000
from 14.8 min in 2000
US average: 26.9
70.1%
−4.0 ptssince 2009
from 74.0% in 2009
US average: 75.1%
3.2%
−2.2 ptssince 2009
from 5.3% in 2009
US average: 8.4%
Section 07

Work & employment

4.6%
+1.5 ptssince 2011
from 3.0% in 2011
US average: 5.4%
60.2%
+3.6 ptssince 2011
from 56.6% in 2011
US average: 63.4%
Women 20-64 in the labor force
63.0%
US average: 73.3%
60.9%
+0.1 ptssince 2009
from 60.8% in 2009
US average: 39.3%
Section 08

People & community

48.5%
+1.1 ptssince 2009
from 47.4% in 2009
51.5%
−1.1 ptssince 2009
from 52.6% in 2009
54.8%
+4.7 ptssince 2009
from 50.1% in 2009
US average: 13.5%
3.9%
−0.6 ptssince 2013
from 4.5% in 2013
US average: 8.8%
Computer in household
99.1%
US average: 91.9%
83.8%
US average: 86.2%
Marital status (2024)
Men 15+
Never married28.2%(1,458)
Married67.1%(3,470)
Widowed1.5%(76)
Divorced3.2%(164)
Women 15+
Never married24.4%(1,453)
Married56.6%(3,369)
Widowed6.6%(392)
Divorced12.4%(737)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

3.9%
−0.6 ptssince 2013
from 4.5% in 2013
US average: 8.8%
53.3%
US average: 55.4%
Direct-purchase
37.7%
US average: 13.7%
13.3%
US average: 17.6%
2.2%
US average: 20.0%
VA health care
0.6%
US average: 2.3%
Any private
88.9%
US average: 68.1%
Any public
14.7%
US average: 35.2%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2020
Gulf War (2001 or later)0.9%(2)
US avg: 20.6%
Gulf War (1990s)9.5%(21)
US avg: 21.4%
Vietnam era52.9%(117)
US avg: 35.2%
Korean War10%(22)
US avg: 7.6%
World War II11.3%(25)
US avg: 2.9%

Share of the 221 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked

How many people live in Key Biscayne, Florida?

Key Biscayne, Florida has about 14,809 residents according to the 2020 American Community Survey.

What is the median household income in Key Biscayne, Florida?

The typical household in Key Biscayne, Florida earns about $166,667 a year. Half of households make more than that, and half make less.

Is Key Biscayne, Florida expensive?

In Key Biscayne, Florida, the median home is worth about $1,430,100, and the typical rent is about $2,584 a month.

How educated are people in Key Biscayne, Florida?

About 73.7% of adults age 25 and over in Key Biscayne, Florida hold a bachelor's degree or higher.

What is the poverty rate in Key Biscayne, Florida?

About 6.1% of people in Key Biscayne, Florida live below the federal poverty line.

Has Key Biscayne, Florida grown since 1990?

Yes, Key Biscayne, Florida has grown since 1990. The population has added about 5,955 residents, a change of about 67 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →