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CITY

Key Biscayne

Florida · 14,815 residents (2025 est.) · 1.247 sq mi
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Notable rankings
#20Most foreign-born residentsof 6,82658.1%#37Highest median rentof 6,764$3,501#81Most expensive homesof 6,786$1,575,300#74Most densely populatedof 4,89111,881
The short version

Key Biscayne is significantly wealthier than the US average, with a median household income of $181,505. Population has grown 41% since 2000. 77% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value has more than tripled since 2000, reaching $1,575,300. Poverty is rare here, at 5.5% of residents. It ranks in the top 1% of US cities for household income.

At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 42.2
US median: 38.9
More educated
77% hold a bachelor's degree
US average: 36%
Less affordable
home values up 122%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
14,791
+41%since 2000
from 10,507 in 2000
1990 – 2025
Population density
11,861 / sq mi
+47%since 2009
from 8,093 / sq mi in 2009
US average: 281
Median age
42.2
+5%since 2000
from 40.1 in 2000
US average: 38.9

PEP 2025 EST:14,815 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
8K10K12K14K15K1990201020202024Key Biscayne
202415K
1990201020202024
Age distribution, 2024
Under 55.8%(854)
US avg: 5.6%
5 to 98.1%(1,203)
US avg: 6%
10 to 1410.9%(1,615)
US avg: 6.4%
15 to 198.7%(1,288)
US avg: 6.6%
20 to 242.7%(406)
US avg: 6.5%
25 to 346.1%(903)
US avg: 13.7%
35 to 4411.7%(1,736)
US avg: 13.2%
45 to 5419.7%(2,921)
US avg: 12.2%
55 to 6410.5%(1,548)
US avg: 12.7%
65 to 748.4%(1,239)
US avg: 10.2%
75 to 845%(742)
US avg: 5.1%
85 and over2.3%(336)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$181,505
+15%inflation adjusted, since 2000
from $86,599 in 2000
US average: $82,259
1990 – 2024
Per capita income
$106,219
+96%since 2000
from $54,213 in 2000
US average: $44,673
Households earning $100K+
78.5%
+15.0 ptssince 2009
from 63.5% in 2009
US average: 53.3%
Poverty rate
5.5%
−2.8 ptssince 2000
from 8.3% in 2000
US average: 12.5%
Income inequality (Gini)
0.528
−6%since 2010
from 0.560 in 2010
US average: 0.476
Workforce by industry, 2024
Other services27.8%
US avg: 6.7%
Public administration19.3%
US avg: 4.8%
Information6.6%
US avg: 10.8%
Arts, entertainment, food5.4%
US avg: 1.9%
Transportation & warehousing3.7%
US avg: 2.2%
Retail trade3.6%
US avg: 9.9%
Finance & insurance3%
US avg: 5.9%
Professional, scientific, technical2.9%
US avg: 5.1%
Wholesale trade2.1%
US avg: 6.9%
Education & health services0%
US avg: 0.9%
Agriculture, forestry, fishing0%
US avg: 1.6%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$1,575,300
+122%inflation adjusted, since 2000
from $390,400 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$3,501
+15%inflation adjusted, since 2000
from $1,674 in 2000
US average: $1,442
Owner-occupied
66.6%
−4.3 ptssince 2000
from 70.8% in 2000
33.4% rent
Vacancy rate
32.4%
−3.6 ptssince 2009
from 35.9% in 2009
US average: 10.0%
Owner cost-burdened
33.8%
−9.5 ptssince 2009
from 43.3% in 2009
US average: 22.9%
Renter cost-burdened
63.3%
+20.0 ptssince 2009
from 43.3% in 2009
US average: 47.4%
Afford Score
8.7
+10%since 2009
from 7.9 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
Gentrification Score
57
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Key Biscayne on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic48.1%(5,058)
Black0.3%(28)
Hispanic / Latino49.8%(5,231)
Asian0.9%(93)
Other0%
2024
White, non-Hispanic23.5%(3,475)
Black0.3%(42)
Hispanic / Latino70.3%(10,398)
Asian0.1%(21)
Other5.8%(855)
Diversity Score
56
−13%since 2009
from 64 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
South American38.5%(5,696)
Colombian12.9%(1,912)
Argentine12%(1,776)
Spaniard8%(1,188)
Mexican7.8%(1,152)
Cuban6.9%(1,024)
Venezuelan6.6%(973)
Peruvian2.4%(350)
Nicaraguan2.3%(347)
Ecuadorian1.8%(261)
+ 7 more hispanic origin groups with data
Guatemalan1.5%(229)
Chilean1.4%(211)
Bolivian0.6%(86)
Dominican0.6%(82)
Uruguayan0.5%(72)
Salvadoran0.3%(47)
Asian origin
Asian Indian0.1%(16)
Chinese0%(5)
Pacific Islander origin
Ancestry
Italian7.8%(1,156)
German6.1%(909)
English4.1%(605)
Brazilian3%(439)
American2.7%(400)
Irish2.5%(364)
Portuguese2.4%(352)
Polish2.1%(318)
French1.1%(170)
Swedish1.1%(166)
Russian0.6%(88)
Scottish0.5%(77)
+ 21 more ancestry groups with data
Turkish0.5%(67)
British0.4%(60)
Ukrainian0.4%(53)
Bulgarian0.4%(52)
Croatian0.3%(50)
Dutch0.3%(50)
Canadian0.3%(40)
Austrian0.2%(35)
Greek0.2%(33)
Scotch-Irish0.2%(32)
Hungarian0.2%(29)
Arab0.2%(28)
West Indian0.2%(26)
Jamaican0.2%(26)
Armenian0.2%(25)
Lithuanian0.1%(18)
Lebanese0.1%(17)
Swiss0.1%(11)
Welsh0.1%(9)
Slovak0%(6)
RANKED:Largest South American population · Largest Colombian population · Largest Argentine population · Largest Spaniard population · Largest Italian population
Section 05

Education

Bachelor's degree or higher
77.2%
+12.2 ptssince 2000
from 64.9% in 2000
US average: 35.6%
High school or higher
96.1%
+1.1 ptssince 2000
from 95.0% in 2000
US average: 89.6%
Graduate degree
42.2%
+10.9 ptssince 2000
from 31.4% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
23.7 min
+60%since 2000
from 14.8 min in 2000
US average: 26.5
Drive alone to work
51.2%
−22.8 ptssince 2009
from 74.0% in 2009
US average: 68.9%
Carpooled to work
5.4%
+2.4 ptssince 2009
from 3.0% in 2009
US average: 8.5%
Public transit
1.9%
+1.3 ptssince 2009
from 0.6% in 2009
US average: 3.2%
Worked from home
34.6%
+22.0 ptssince 2009
from 12.6% in 2009
US average: 15.0%
Walked to work
2.0%
−0.4 ptssince 2009
from 2.4% in 2009
US average: 2.4%
Biked to work
0.3%
−1.1 ptssince 2009
from 1.3% in 2009
US average: 0.4%
No vehicle available
2.8%
−2.6 ptssince 2009
from 5.3% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
2.8%
−0.2 ptssince 2011
from 3.0% in 2011
US average: 5.2%
Labor force participation
60.7%
+4.1 ptssince 2011
from 56.6% in 2011
US average: 63.5%
Self-employed
5.4%
−1.1 ptssince 2009
from 6.6% in 2009
US average: 13.1%
Management & professional
68.7%
−14.5 ptssince 2009
from 83.2% in 2009
US average: 42.5%
Section 08

People & community

Male
49.9%
+2.5 ptssince 2009
from 47.4% in 2009
Female
50.1%
−2.5 ptssince 2009
from 52.6% in 2009
Foreign born
58.1%
+7.9 ptssince 2009
from 50.1% in 2009
US average: 14.1%
Veterans
1.5%
−44.3 ptssince 2009
from 45.7% in 2009
US average: 6.2%
With a disability
5.1%
+1.1 ptssince 2012
from 4.0% in 2012
US average: 13.3%
Uninsured
1.8%
−93.7 ptssince 2013
from 95.5% in 2013
US average: 8.4%
Broadband at home
92.6%
+2.7 ptssince 2017
from 89.9% in 2017
US average: 91.0%
English only at home
19.6%
−7.8 ptssince 2016
from 27.4% in 2016
US average: 77.7%
Spanish at home
68.7%
+5.1 ptssince 2016
from 63.6% in 2016
US average: 13.6%
Marital status
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
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Frequently asked

How many people live in Key Biscayne, Florida?

Key Biscayne, Florida has about 14,791 residents according to the 2024 American Community Survey.

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

The typical household in Key Biscayne, Florida earns about $181,505 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 $1,575,300, and the typical rent is about $3,501 a month.

How educated are people in Key Biscayne, Florida?

About 77.2% 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 5.5% 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 5,937 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 →