City profile · Florida · Census ACS 2023

Key Biscayne, FL

Population, income, housing, safety, climate and schools for Key Biscayne - drawn straight from Census ACS, FBI UCR, NOAA, NCES, HUD and FEMA, refreshed on the 2024–2025 release cycle.

14,560
Residents
$172,604
Median income
$1,238,700
Median home
$2,436
Median rent (state)

Key Biscayne - the verdict

Out of every US city with 1,000+ residents, Key Biscayne places in the 96th percentile for household income. Source: Census ACS.

96th
percentile, household income
98th
percentile, home value
91st
percentile, median rent
📝 How we sourced this

Population, income, and housing-cost figures come from the U.S. Census Bureau American Community Survey 5-year estimates (B-series tables). Crime data uses FBI UCR; climate uses NOAA Climate Normals; school counts come from NCES Common Core of Data; permits use the Census Building Permits Survey (BPS). See our methodology page for the full ETL pipeline and OMB / FIPS join keys.

Data Snapshot: Key Biscayne, FL

Key Biscayne is a small town in Florida, home to 14,560 residents per U.S. Census Bureau ACS 2023 estimates. Median household income here is $172,604 per year, placing it in the top quartile of U.S. cities for household income, with a poverty rate of 6.7%. Typical homes in Key Biscayne are valued around $1,238,700, and the median resident age is 43.1 years. Educational attainment runs 74.4% of adults with a bachelor's degree or higher. Separately, 57.8% of working-age residents are in the labor force.

The Census Building Permit Survey recorded 22 residential units authorized here in 2024 (Slowing), down 19% from five years earlier.

Florida carries a cost-of-living premium: on BEA's 100-equals-national-average cost index, Florida scores 103.4 (Above Average), per the 2024 Regional Price Parities release. Statewide, HUD pegs Fair Market Rent for a two-bedroom unit at $2,436 monthly. EIA 2023 residential energy data puts Florida's average monthly utility costs around $225 (state average). FEMA's National Risk Index rates natural-hazard exposure at 99.6 out of 100 (Very High).

Population

14,560 residents

Census ACS 2023 - Florida

Median Household Income

$172,604 /yr

Poverty 6.7%

Cost of Living Index (state)

103.4 (US=100)

Above Average - BEA RPP 2024, Florida average

How does Key Biscayne compare to other US cities?

Key Biscayne measured against every US city with 1,000+ residents, computed live from the same Census and FBI data shown throughout this page.

Household income 96% higher than other cities
Home value 98% pricier than other cities
Median rent 91% pricier than other cities

"Safer than" reflects total crime rate from FBI UCR; the others use Census ACS estimates.

How we calculate these percentiles & ranks

Each percentile compares Key Biscayne against every qualifying US city; each in-state rank narrows that to Florida only. Full formula and direction notes: methodology.

Florida-relative analysis

Bachelor's Degree or Higher is Key Biscayne's strongest outlier among Florida cities

Among the 930 Florida cities PlainCities tracks with reported bachelor's degree or higher data, Key Biscayne ranks #10 - the 99th percentile within the state. This is a different, narrower cut than the nationwide percentiles above: it compares Key Biscayne only against its own state's cities, not the full US field.

Median Household Income
#15 of 903
98th percentile in Florida
Median Gross Rent
#10 of 930
93rd percentile in Florida
Median Home Value
#14 of 894
98th percentile in Florida
Poverty Rate
#526 of 930
42nd percentile in Florida
Bachelor's Degree or Higher
#10 of 930
99th percentile in Florida

Ranked by raw value (highest first); a higher rank is not automatically "better" for every measure, see each metric's own context above. This is a comparison within Florida only, not a livability score. See the methodology for the source and calculation.

96thIncome percentile

96th percentile nationally for median household income. Source: Census ACS 2023 / FBI UCR 2023.

How Key Biscayne's home value compares nationally

Median home value vs. every US city (population 1,000+)

$1,238,700 2nd percentile more affordable than 2% of 15,600 US cities

$0–$25,000: 5 US cities (0%). Below this entry. $25,000–$50,000: 54 US cities (0%). Below this entry. $50,000–$75,000: 352 US cities (2%). Below this entry. $75,000–$100,000: 1,086 US cities (7%). Below this entry. $100,000–$125,000: 1,516 US cities (10%). Below this entry. $125,000–$150,000: 1,170 US cities (8%). Below this entry. $150,000–$175,000: 1,278 US cities (8%). Below this entry. $175,000–$200,000: 1,229 US cities (8%). Below this entry. $200,000–$225,000: 1,035 US cities (7%). Below this entry. $225,000–$250,000: 976 US cities (6%). Below this entry. $250,000–$275,000: 754 US cities (5%). Below this entry. $275,000–$300,000: 712 US cities (5%). Below this entry. $300,000–$325,000: 521 US cities (3%). Below this entry. $325,000–$350,000: 526 US cities (3%). Below this entry. $350,000–$375,000: 465 US cities (3%). Below this entry. $375,000–$400,000: 393 US cities (3%). Below this entry. $400,000–$425,000: 317 US cities (2%). Below this entry. $425,000–$450,000: 300 US cities (2%). Below this entry. $450,000–$475,000: 307 US cities (2%). Below this entry. $475,000–$500,000: 250 US cities (2%). Below this entry. $500,000–$525,000: 160 US cities (1%). Below this entry. $525,000–$550,000: 156 US cities (1%). Below this entry. $550,000–$575,000: 172 US cities (1%). Below this entry. $575,000–$600,000: 172 US cities (1%). Below this entry. $600,000–$625,000: 163 US cities (1%). Below this entry. $625,000–$650,000: 167 US cities (1%). Below this entry. $650,000–$675,000: 135 US cities (1%). Below this entry. $675,000–$700,000: 101 US cities (1%). Below this entry. $700,000–$725,000: 95 US cities (1%). Below this entry. $725,000–$750,000: 71 US cities (0%). Below this entry. $750,000–$775,000: 65 US cities (0%). Below this entry. $775,000–$800,000: 70 US cities (0%). Below this entry. $800,000–$825,000: 57 US cities (0%). Below this entry. $825,000–$850,000: 67 US cities (0%). Below this entry. $850,000–$875,000: 60 US cities (0%). Below this entry. $875,000–$900,000: 58 US cities (0%). Below this entry. $900,000–$925,000: 47 US cities (0%). Below this entry. $925,000–$950,000: 37 US cities (0%). Below this entry. $950,000–$975,000: 31 US cities (0%). Below this entry. $975,000–$1,000,000: 470 US cities (3%). Below this entry. $1,000,000–$1,025,000: 0 US cities (0%). This entry sits in this band. Key Biscayne $0 $1,025,000 every US city, bucketed by value

Each bar is a $25K-wide band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau ACS 5-Year Estimates · 2023

Income distribution context

Household income distribution - Key Biscayne, FL Key Biscayne, FL's reported median household income shown against the U.S. national quintile-share pattern (not Key Biscayne, FL-specific quintile data). The Lorenz curve traces the national cumulative income share against cumulative population share, perfect equality is the diagonal; observed inequality bows below. $ Household Income Distribution Key Biscayne, FL median $172,604/yr, vs. U.S. national quintile pattern QUINTILE SHARE OF AGGREGATE INCOME Lowest 20% 3.4% Second 20% 9.2% Middle 20% 15.1% Fourth 20% 23.2% Top 20% 49.1% LORENZ CURVE cumulative income vs. population 100% 0% 100% pop. 0%
Key Biscayne, FL's median household income (Census ACS 5-year estimate) plotted against the U.S. national income-quintile distribution pattern for context; the quintile shares and Lorenz curve are national figures, not computed specifically for Key Biscayne, FL. Diagonal = perfect equality.

Key socioeconomic indicators

Bachelor's degree or higher (adults 25+) 74.4%

Census ACS S1501, educational attainment

Poverty rate (households below FPL) 6.7%

Census ACS S1701, poverty status

Labor force participation (adults 16+) 57.8%

Census ACS S2301, share of working-age residents in the labor force

Population
14,560
Median Income
$172,604
Median Home Value
$1,238,700
Median Age
43.1
Poverty Rate
6.7%
Labor force participation
57.8%
Bachelor's Degree+
74.4%

Schools

Total Schools
2
Public schools in this city

Population Change

Annual U.S. Census Bureau Population Estimates Program (PEP) estimates, 2020–2025

See the fastest-growing cities →
14,400 residents14,600 residents14,800 residents15,000 residents15,200 residents 202020212022202320242025 14,745 residents 14,815 residents ▲ +0.5%
Key Biscayne's Census PEP population estimates, 2020–2025.

Housing Supply

Census Bureau Building Permits Survey (BPS) - annual residential permits authorized

🏗️ Slowing
Total Permits (2024)
22
housing units authorized
Single-Family
22
detached homes
Multifamily
0
apartments & condos
Supply Intensity
1.5
permits per 1,000 residents

5-Year Permit Trend (2019–2024)

Year Total
2019 27
2020 30
2021 31
2022 28
2023 18
2024 22

Permit volume decreased 19% from 2019 to 2024.

Commute Patterns

How workers travel to work, Census ACS 2023

Drive Alone
55.2%
Carpool
4.6%
Public Transit
2.2%
Walk
2.2%
Work from Home
31.9%
Other
3.9%

Based on 6,138 workers 16 and over.

Monthly Utility Costs

State-average estimates for Florida - EIA 2023 residential energy data

Electricity
$145
avg/month
Natural Gas
$25
avg/month
Water & Sewer
$55
avg/month
Total Utilities
$225
estimated/month

Estimates reflect Florida state averages. Actual costs vary by home size, usage, and local rates. Source: U.S. Energy Information Administration (EIA) 2023.

Living Costs & Risk

Cost of living is a Florida state average from BEA; rent and hazard risk are county-level figures from HUD and FEMA for the county Key Biscayne sits in

Cost of Living Index
103.4
Above Average
US average = 100 · BEA RPP 2024
Typical 2-BR Rent
$2,436/mo
HUD Fair Market Rent
County-level FMR estimate
Natural Hazard Risk
99.6 / 100
Very High
FEMA NRI composite score (county)

Similar Cities in Florida

Naranja
14,610 people
Gladeview
14,657 people
Thonotosassa
14,660 people
Lockhart
14,753 people
Hobe Sound
14,313 people
Iona
14,290 people

Cities of a Similar Size Nationwide

Population-matched peers from other states, closest to Key Biscayne's 14,560 residents (Census ACS 5-Year 2023).

Clarkston, GA
14,560 people
Reidsville, NC
14,547 people
Cherryland, CA
14,575 people
Parlier, CA
14,545 people
Moultrie, GA
14,545 people
Nolensville, TN
14,545 people

Cities with a Similar Household Income Nationwide

Median-household-income-matched peers from other states, closest to Key Biscayne's $172,604 (Census ACS 5-Year 2023, table B19013).

Argyle, TX
$172,604 median income
Paragon Estates, CO
$172,625 median income
Keller, TX
$172,654 median income
Tower Lakes, IL
$172,656 median income
Acalanes Ridge, CA
$172,667 median income
Genesee, CO
$172,692 median income

Race & Ethnicity Composition

Race and ethnicity - Key Biscayne, FL Race categories sum to one hundred percent per Census methodology. Hispanic or Latino is shown separately as an ethnicity overlay; it cuts across all race categories per OMB Directive 15. Race & Ethnicity Composition Key Biscayne, FL - Census ACS, OMB race + ethnicity categories RACE, sums to 100% 45.3% 51.0% ETHNICITY, Hispanic or Latino (any race) 72.8% White 45.3% Black or African American 1.0% Asian 0.2% American Indian 0.0% Native Hawaiian 0.1% Some other race 2.4% Two or more races 51.0% Per OMB Directive 15: Hispanic/Latino ethnicity is reported separately from the race categories.
Race categories sum to 100%. Hispanic or Latino ethnicity is reported separately and cuts across race per Census/OMB methodology.

City-level race and ethnicity, Census ACS 5-year 2023 (tables B02001, B03001), OMB Directive 15 categories.

How Key Biscayne compares to nearby Florida cities

Population + median household income, sourced from Census Bureau ACS 5-year B01001 (population) and B19013 (median household income).

City Population Median Household Income
Key Biscayne (this city) 14,560 $172,604
Naranja 14,610 $55,563
Gladeview 14,657 $44,560
Thonotosassa 14,660 $67,447
Census ACS 5-year FIPS FL NCES CCD Census BPS 2024 OMB Bulletin 23-01

What do people ask about Key Biscayne, FL?

What is the population of Key Biscayne, FL? +

14,560 people live in Key Biscayne, FL according to U.S. Census Bureau ACS 2023 estimates.

What is the median household income in Key Biscayne, FL? +

In Key Biscayne, the typical household earns $172,604 per year, based on Census ACS 2023 data.

What is the cost of living in Key Biscayne? +

BEA does not publish a city-level cost-of-living figure for Key Biscayne; the closest available measure is the Florida state average, a cost of living index of 103.4 (U.S. average = 100), rated "Above Average" based on BEA Regional Price Parities 2024 data. Costs within Florida vary by metro area.

What is the median home value in Key Biscayne, FL? +

Key Biscayne's median home value sits at $1,238,700, according to Census ACS 2023 estimates.

Source: U.S. Census Bureau ACS 5-Year 2023, NCES CCD, Census BPS 2024, Census ACS B08301/B08136, U.S. Energy Information Administration (EIA) 2023, BEA Regional Price Parities 2024, HUD Fair Market Rents 2026, FEMA National Risk Index.

Read our methodology - how this data is sourced, computed, and verified.

Primary sources: Census ACS, FBI UCR, NOAA Climate Normals, NCES.

Citation & verification links Data sourced from the U.S. Census Bureau. See our methodology for details. Retrieved and formatted by PlainCities

Verify with HUD →

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Every figure on PlainCities is rendered directly from Census ACS source data, no number is typed in by an editor. This page draws directly on Census ACS source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.