Where does this demographic data come from?

All demographic data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates, which samples about 3.5 million households annually. The 5-year estimates provide the most reliable data for small geographies like municipalities.

What is the difference between Census data and ACS data?

The decennial Census (conducted every 10 years) is a full population count focusing on basic demographics. The ACS is an ongoing survey that collects detailed data on income, education, housing, commute patterns, and more. ACS data is updated annually but represents averages over a 5-year period.

How accurate is this data for small towns?

For smaller municipalities, ACS estimates have wider margins of error because fewer residents are sampled. The 5-year estimates reduce this uncertainty by averaging over a longer period. For towns under 5,000 people, treat specific numbers as approximations rather than precise counts.

Key Biscayne, FL Population, Income & Demographics 2026

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

14,791

Median Agei

42.2

Race & Ethnicityi

Hispanic/Latino

70.3%10,398

White

23.5%3,475

Two or More

5.7%837

Black

0.3%42

Asian

0.1%21

Other

0.1%18

Educational Attainment (Age 25+)i

GED/Alternative

0.6%56

High School Diploma

5.6%531

Some College (<1 yr)

1.6%149

Some College (1+ yr)

6.1%577

Associate's Degree

5%474

Bachelor's Degree

34.9%3,292

Master's Degree

28.5%2,690

Professional Degree

10%944

Doctorate

3.7%347

HS or Higher

96.1%

BA or Higher

77.2%

Graduate+

42.2%

Housingi

Median Home Valuei

$1,575,300

Median Renti

$3,501

Tenure

Owner-Occupied

66.6%3,291

Renter-Occupied

33.4%1,654

Total Units

7,310

Homeownership

66.6%

Vacancy Rate

32.4%

Home Values

Under $50K

0.9%29

$150K–$200K

0.3%10

$200K–$300K

1.1%35

$300K–$500K

4.6%152

$500K–$1M

27%890

$1M+

66.1%2,175

Rent Distribution

$500–$750

$750–$1,000

$1,250–$1,500

$1,500–$2,000

$2,000+

1,480

Year Built

2020 or later

0.4%28

2010–2019

4.5%326

2000–2009

8.5%623

1990–1999

13.3%971

1980–1989

14.2%1,037

1970–1979

35.4%2,585

1960–1969

14.2%1,035

1950–1959

8.8%644

1940–1949

0.4%29

1939 or earlier

0.4%32

Heating Fuel

Electricity

86.8%4,291

Utility Gas

6.4%317

No Fuel

5.4%265

Bottled/LP Gas

0.8%40

Fuel Oil

0.6%32

Economyi

Median Household Incomei

$181,505

Mean Household Incomei

$309,291

Per Capita Incomei

$106,219

Poverty Ratei

5.5%

Unemploymenti

2.8%

Labor Forcei

6,570

Household Income Distribution

Under $10K

4.1%204

$10K–$15K

1.1%55

$15K–$20K

2.2%110

$20K–$25K

2.4%121

$25K–$30K

0.7%33

$30K–$35K

0.6%29

$35K–$40K

0.8%38

$40K–$45K

0.8%42

$45K–$50K

1.7%85

$50K–$60K

3%146

$60K–$75K

4.1%201

$75K–$100K

11%542

$100K–$125K

8.8%433

$125K–$150K

2.9%145

$150K–$200K

7.5%373

$200K+

48.3%2,388

Federally Subsidized Housingi

HUD

The federal government helps low-income families, seniors, and people with disabilities afford housing through several programs. Residents typically pay about 30% of their income toward rent, with the government covering the rest. This data shows how many households in this community receive that assistance.

Subsidized Homesi

Programs in this community

Project Based Section 81 homes

Privately owned apartments with rent subsidies tied to the building

Ancestry & Heritage

Self-reported ancestry groups. Residents may report multiple ancestries, so totals may exceed 100%.

Foreign-Born Populationi

Foreign-Borni

8,58858.1%

By Region

Top Countries

Mexico

820

Guatemala

221

Poland

133

Germany

United Kingdom

China

India

Canada

Commute & Transportationi

Workersi

6,297

Avg. Commutei

23.7 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

6,383

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

147(1.5% of civilian adults)

Health Insurancei

98.2%Insured

1.8%Uninsured