CensusEasy
CITY · 2000 CENSUS

Key Biscayne

Florida · 10,507 residents · 1.247 sq mi
Time machine
COMPARE TO
Part of the Miami metro area
Compare
The short version

Key Biscayne is significantly wealthier than the US average, with a median household income of $86,599. Population has grown 19% since 1990. 65% of adults hold a bachelor's degree or higher, well above the national rate of 24%. Median home value is $390,400. Households here earn about 123% more than the Florida median.

At a glance
Wealthier
above the US median
US median: $42,589
Older
median age 40.1
US median: 35.2
More educated
65% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
10,507
+19%since 1990
from 8,854 in 1990
1990 – 2025
Median age
40.1
Unchangedsince 1990
from 39.9 in 1990
US average: 35.2
Population, 1990 – 2024
8K10K12K14K15K1990201020202024Key Biscayne
202415K
1990201020202024
Age distribution, 2000
Under 57.3%(766)
US avg: 6.8%
5 to 97.8%(816)
US avg: 7.3%
10 to 146.3%(660)
US avg: 7.3%
15 to 194.3%(455)
US avg: 7.2%
20 to 243.2%(334)
US avg: 6.7%
25 to 3411.5%(1,211)
US avg: 14.2%
35 to 4418.1%(1,902)
US avg: 16%
45 to 5414%(1,473)
US avg: 13.4%
55 to 6412%(1,256)
US avg: 8.6%
65 to 748.4%(886)
US avg: 6.5%
75 to 845.7%(594)
US avg: 4.4%
85 and over1.5%(154)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$86,599
+7%inflation adjusted, since 1990
from $61,293 in 1990
US average: $42,589
1990 – 2024
Per capita income
$54,213
+44%since 1990
from $37,629 in 1990
US average: $21,522
Poverty rate
8.3%
+2.4 ptssince 1990
from 5.8% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$390,400
−1%inflation adjusted, since 1990
from $299,400 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$1,674
+27%inflation adjusted, since 1990
from $1,001 in 1990
US average: $602
Owner-occupied
70.8%
+4.0 ptssince 1990
from 66.9% in 1990
29.2% rent
RELATED:See current rent listings in Key Biscayne on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic98.5%(8,720)
Black0.3%(26)
Hispanic / Latino41.8%(3,698)
Asian0.4%(37)
2000
White, non-Hispanic48.1%(5,058)
Black0.3%(28)
Hispanic / Latino49.8%(5,231)
Asian0.9%(93)

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)
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
64.9%
+10.8 ptssince 1990
from 54.2% in 1990
US average: 24.4%
High school or higher
95.0%
+0.5 ptssince 1990
from 94.5% in 1990
US average: 80.3%
Graduate degree
31.4%
+6.9 ptssince 1990
from 24.4% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
14.8 min
−42%since 1990
from 25.7 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married22.1%(839)
Married68.3%(2,596)
Widowed1.3%(49)
Divorced8.4%(318)
Women 15+
Never married18.5%(828)
Married60.9%(2,723)
Widowed9.8%(438)
Divorced10.8%(485)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Drill deeper

Places similar to Key Biscayne

Lake Butler
Pop 17,125
Hockessin
Pop 13,439
Pinecrest
Pop 18,635
Palm Beach
Pop 9,423
Places similar to Key Biscayne
Head to head

Compare Key Biscayne to nearby cities

KEY BISCAYNE VS
Coral Gables
Income$134,216+55%
Home value$1,089,900+179%
Population49,578+235%
SEE FULL COMPARISON →
KEY BISCAYNE VS
Miami
Income$62,462−28%
Home value$518,100+33%
Population489,812+3206%
SEE FULL COMPARISON →
KEY BISCAYNE VS
South Miami
Income$94,507+9%
Home value$829,400+112%
Population13,660−8%
SEE FULL COMPARISON →
KEY BISCAYNE VS
Miami Beach
Income$72,856−16%
Home value$556,700+43%
Population81,594+451%
SEE FULL COMPARISON →
Frequently asked

How many people live in Key Biscayne, Florida?

Key Biscayne, Florida has about 10,507 residents according to the 2000 Census.

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

The typical household in Key Biscayne, Florida earns about $86,599 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 $390,400, and the typical rent is about $1,674 a month.

How educated are people in Key Biscayne, Florida?

About 64.9% 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 8.3% 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 1,653 residents, a change of about 19 percent over that period.

Keep going

Explore from here

Up the hierarchy
Florida
Rankings
Highest income citiesFastest growing citiesMost educated cities
Compare
Compare Key Biscayne with another place

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

How we source and harmonize this data →