CITY · 1990 CENSUS

Key Biscayne

Florida · 8,854 residents · 1.25 sq mi

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The short version

Key Biscayne is a city of 8,854 people in Florida. Households here earn about 123% more than in Florida as a whole. This is an unusually credentialed place: 54% of adults have a four-year degree. The typical home is worth $299,400. Renters pay $1,001 a month at the median. The median household earns $61,293, about 103% above the national median.

At a glance

Wealthier

above the US median

US median: $30,130

Older

median age 39.9

US median: 33.0

More educated

54% hold a bachelor's degree

US average: 20%

Stable housing

home values roughly flat, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

8,854

−16%vs 2000

vs 10,507 in 2000

1990 – 2025

Median age

39.9

Unchangedvs 2000

vs 40.1 in 2000

US average: 33.0

Land area

1.25 sq mi

Population, 1990 – 2024

202415K

Age distribution, 1990

Under 55.5%(488)

US avg: 7.3%

5 to 94.6%(403)

US avg: 7.3%

10 to 145.7%(509)

US avg: 6.9%

15 to 194.6%(408)

US avg: 7.1%

20 to 244.9%(433)

US avg: 7.5%

25 to 3416.5%(1,458)

US avg: 17.5%

35 to 4415.9%(1,405)

US avg: 15.1%

45 to 5413.3%(1,181)

US avg: 10.2%

55 to 6411.8%(1,045)

US avg: 8.5%

65 to 7410.6%(941)

US avg: 7.3%

75 to 845.3%(470)

US avg: 4%

85 and over1.3%(113)

US avg: 1.2%

BAR + DOT: THIS PLACE · TICK: US AVERAGE

Section 02

Income & economy

Median household income

$61,293

−7%inflation adjusted, since 2000

vs $86,599 in 2000

US average: $30,130

1990 – 2024

Per capita income

$37,629

−31%vs 2000

vs $54,213 in 2000

US average: $14,340

Poverty rate

5.8%

−2.4 ptsvs 2000

vs 8.3% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$299,400

+1%inflation adjusted, since 2000

vs $390,400 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$1,001

−21%inflation adjusted, since 2000

vs $1,674 in 2000

US average: $450

Owner-occupied

66.9%

−4.0 ptsvs 2000

vs 70.8% in 2000

33.1% rent

Section 04

Race & ethnicity

2000

White, non-Hispanic48.1%(5,058)

Black0.3%(28)

Hispanic / Latino49.8%(5,231)

Asian0.9%(93)

Other0%

1990

White, non-Hispanic98.5%(8,720)

Black0.3%(26)

Hispanic / Latino41.8%(3,698)

Asian0.4%(37)

Other0.8%(71)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

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)

Central American4.3%(630)

Peruvian2.4%(350)

Nicaraguan2.3%(347)

Puerto Rican2%(291)

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)

Panamanian0%(7)

Asian origin

Asian Indian0.1%(16)

Chinese0%(5)

Pacific Islander origin

Native Hawaiian0%(4)

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)

French Canadian0.1%(19)

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

54.2%

−10.8 ptsvs 2000

vs 64.9% in 2000

US average: 20.3%

High school or higher

94.5%

−0.5 ptsvs 2000

vs 95.0% in 2000

US average: 75.2%

Graduate degree

24.4%

−6.9 ptsvs 2000

vs 31.4% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

25.7 min

+73%vs 2000

vs 14.8 min in 2000

US average: 21.9

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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

Showing 2024 (the nearest year with coverage data).

Uninsured

1.8%

−2.7 ptssince 2013

from 4.5% in 2013

US average: 8.4%

Employer-based

58.1%

+4.8 ptssince 2020

from 53.3% in 2020

US average: 54.8%

Direct-purchase

31.1%

−6.6 ptssince 2020

from 37.7% in 2020

US average: 13.8%

Medicare

13.6%

+0.3 ptssince 2020

from 13.3% in 2020

US average: 18.4%

Medicaid

5.5%

+3.3 ptssince 2020

from 2.2% in 2020

US average: 20.9%

VA health care

0.2%

−0.4 ptssince 2020

from 0.6% in 2020

US average: 2.2%

Any private

87.0%

−1.9 ptssince 2020

from 88.9% in 2020

US average: 67.1%

Any public

17.3%

+2.6 ptssince 2020

from 14.7% in 2020

US average: 36.7%

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, 2024

Gulf War (2001 or later)21.8%(32)

US avg: 26.4%

Gulf War (1990s)3.4%(5)

US avg: 24.3%

Vietnam era32.7%(48)

US avg: 33.1%

Korean War23.8%(35)

US avg: 4.5%

World War II0%(0)

US avg: 1%

Share of the 147 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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