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CITY · 1990 CENSUS

Key Biscayne

Florida · 8,854 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 $61,293. Population has fallen 16% since 2000, a loss of 1,653 residents. 54% of adults hold a bachelor's degree or higher, well above the national rate of 20%. Median home value is $299,400. With a median age of 39.9, the population is older than the US median of 33.0. Households here earn about 123% more than the Florida 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

8,854
−16%vs 2000
vs 10,507 in 2000
1990 – 2025
7,100 / sq mi
−16%vs 2000
vs 8,426 / sq mi in 2000
US average: 221
39.9
Unchangedvs 2000
vs 40.1 in 2000
US average: 33.0
Population, 19902024
8K10K12K14K15K1990201020202024Key Biscayne
202415K
1990201020202024
Section 02

Income & economy

$61,293
−7%inflation adjusted, since 2000
vs $86,599 in 2000
US average: $30,130
1990 – 2024
$37,629
−31%vs 2000
vs $54,213 in 2000
US average: $14,340
5.8%
−2.4 ptsvs 2000
vs 8.3% in 2000
US average: 13.2%
Section 03

Housing

$299,400
+1%inflation adjusted, since 2000
vs $390,400 in 2000
US average: $93,722
1990 – 2024
$1,001
−21%inflation adjusted, since 2000
vs $1,674 in 2000
US average: $450
66.9%
−4.0 ptsvs 2000
vs 70.8% in 2000
33.1% rent
4.9
+8%vs 2000
vs 4.5 in 2000
1990 – 2024
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%
Diversity Score63.9%(6,716)
1990
White, non-Hispanic98.5%(8,720)
Black0.3%(26)
Hispanic / Latino41.8%(3,698)
Asian0.4%(37)
Other0.8%(71)
Diversity Score53.8%(4,765)
54
−16%vs 2000
vs 64 in 2000
1990 – 2024
Section 05

Education

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%
24.4%
−6.9 ptsvs 2000
vs 31.4% in 2000
US average: 7.1%
Section 06

Commute & transportation

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.

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Frequently asked

How many people live in Key Biscayne, Florida?

Key Biscayne, Florida has about 8,854 residents according to the 1990 Census.

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

The typical household in Key Biscayne, Florida earns about $61,293 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 $299,400, and the typical rent is about $1,001 a month.

How educated are people in Key Biscayne, Florida?

About 54.2% 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 5.8% of people in Key Biscayne, Florida live below the federal poverty line.

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

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