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CITY · 2000 CENSUS

Key Biscayne

Florida · 10,507 residents · 1.247 sq mi
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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

10,507
+19%since 1990
from 8,854 in 1990
1990 – 2025
8,426 / sq mi
+19%since 1990
from 7,100 / sq mi in 1990
US average: 242
40.1
Unchangedsince 1990
from 39.9 in 1990
US average: 35.2
Population, 19902024
8K10K12K14K15K1990201020202024Key Biscayne
202415K
1990201020202024
Section 02

Income & economy

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

Housing

$390,400
−1%inflation adjusted, since 1990
from $299,400 in 1990
US average: $120,530
1990 – 2024
$1,674
+27%inflation adjusted, since 1990
from $1,001 in 1990
US average: $602
70.8%
+4.0 ptssince 1990
from 66.9% in 1990
29.2% rent
4.5
−8%since 1990
from 4.9 in 1990
1990 – 2024
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)
Diversity Score53.8%(4,765)
2000
White, non-Hispanic48.1%(5,058)
Black0.3%(28)
Hispanic / Latino49.8%(5,231)
Asian0.9%(93)
Diversity Score63.9%(6,716)
64
+19%since 1990
from 54 in 1990
1990 – 2024
Section 05

Education

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%
31.4%
+6.9 ptssince 1990
from 24.4% in 1990
US average: 8.8%
Section 06

Commute & transportation

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.

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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.

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

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