About

Life in Key Biscayne

With a median home price around $1.24 million and median rent at $3,501 a month, you're in wealth-concentrated territory; the median household income sits at $181,505, and 74% of residents hold college degrees. Jobs tend to follow you here rather than pull you here; most residents commute 24 minutes into Miami proper or work remotely, so this is less about local employment and more about choosing a specific lifestyle within the metro area. The Latino community is the cultural backbone—Cuban, Colombian, Venezuelan, and Argentine families form the plurality, with Spanish spoken at home by about 60% of residents.

Key Biscayne at a Glance

Population, income, housing and more

Median Age

42.2 yrs

Poverty Rate

5.5%

Foreign-Born

58.1%

Broadband Internet

92.6%

of households

Population Growth

+0.1%

recent change · Census Bureau

Median household income

Key Biscayne$181,505
Florida avg$74,568
US$80,734

Demographics58.1% foreign-born, most often from Argentina

Who lives in Key Biscayne: race and ethnicity, ages, households, languages and countries of origin

In Key Biscayne, the largest foreign-born group is from Argentina (19.9%), and 68.7% of residents speak Spanish at home.

Under 18

31.8%

of residents

65 and Older

15.7%

of residents

Households with Kids

46.2%

anyone under 18

Living Alone

18.7%

of households

Married Couples

65.9%

of households

Avg Household Size

2.99

people

Race & Ethnicity

Hispanic or Latino70.3%
White23.5%
Two or more races5.7%

Hispanic or Latino of any race; other groups are non-Hispanic

Top countries of origin (foreign-born)

Argentina19.9%
Colombia12.8%
Mexico9.5%
Venezuela9.0%
Spain8.7%
Brazil7.4%
Cuba7.2%
Peru3.6%
Chile3.6%
Guatemala2.6%

Languages Spoken at Home

Spanish68.7%
English only19.6%
Other Indo-European7.7%
Russian/Slavic1.5%
French/Haitian1.0%
Other0.8%
German/Germanic0.5%
Other Asian/Pacific0.3%

Cost of Livingrent 110% above FL average

Rent, home values, and income in Key Biscayne

In Key Biscayne, rent runs 110% above the FL average, and home values are 339% above the FL average.

Median rent (per month)

Key Biscayne$3,500+
Florida avg$1,669
US$1,413

Median home value

Key Biscayne$1,575,300
Florida avg$359,000
US$332,700

Rent Burdened

63.3%

spending 30%+ of income on rent

Severely Rent Burdened

31.4%

spending 50%+

Cost of Living Index

114.2

metro area (BEA) · US avg = 100

Homeowners

66.6%

of occupied homes are owned

Typical Home Built

1977

median year built

Vacant Homes

32.4%

of housing units

Home Value Trend

$1,286,642
$1,725,646
202120222023202420252026

Latest: $1,725,646 (September 2026)

Jobs & Economyunemployment 1.2 pts below FL average

Unemployment in Key Biscayne and typical pay across the metro area

Unemployment in Miami-Dade County, which includes Key Biscayne, is 1.2 percentage points lower than the FL average.

Unemployment rate

Key Biscayne2.7%
Florida avg3.9%
US4.3%

Key Biscayne: Miami-Dade County rate (county-wide) · BLS annual average

Unemployment Rate — 10 Year Trend

5.4%
4.7%
3.7%
2.9%
7.9%
5.5%
2.7%
2%
2.4%
2.7%
2016201720182019202020212022202320242025

Miami-Dade County (county-wide) · Annual averages

Key Biscayne is less than 1% of Miami-Dade County’s population, so county-wide figures may differ from local conditions.

What Key Biscayne Residents Do for Work · share of employed residents by industry

Finance & real estate27.8%
Professional & business services19.5%
Education & health care14.2%
Arts, hospitality & food service7.3%
Retail6.6%
Information5.4%
Wholesale trade3.7%
Manufacturing3.6%

City residents, wherever they work

Median Salary by Occupation · metro area

Management$107,340
Healthcare$80,090
Business & Finance$77,760
Education$51,950
Construction$49,170
Repair & Maintenance$48,900
Office & Admin$41,640
Sales$37,640

Miami-Fort Lauderdale-West Palm Beach, FL metro area

Commute23.7 min avg

How Key Biscayne residents get to work, and the nearest airports

In Key Biscayne, most residents drive alone to work (51%), and 66% get there in under 30 minutes.

How People Get to Work

Drive alone51.2%
Carpool5.4%
Public transit1.9%
Walk2.0%
Work from home34.6%
Other4.9%

Commute Time Distribution

Under 15 min20.9%
15–29 min45.0%
30–44 min23.1%
45–59 min5.4%
60+ min5.5%

Nearest airports · with airline service

  • Miami International Airport (MIA)

    Major hub26.5M passengers boarded in 2025

    10 mi

Straight-line distance. Size is the FAA’s hub category, based on passenger traffic: regional airports may have only a few flights a day.

Safetyviolent crime 85% below national average

Crime rates for 2024

Violent crime in Key Biscayne runs 85% below the national average.

Violent Crime Rate

55.9

per 100,000 residents

Below average (363 national, 2024)

Property Crime Rate

775.9

per 100,000 residents

Below average (1,767 national, 2024)

Key Biscayne Police Department

Natural DisastersFlood most common — 30 events in 2025

Natural hazard risk, storms and earthquakes

FEMA National Risk Index

Very High

99.6 / 100

Compares expected losses from natural hazards, social vulnerability and community resilience against every US county (higher = more risk).

Coastal flooding · Very HighCold wave · Very HighHurricane · Very HighLightning · Very HighInland flooding · Very High

Miami-Dade County, county-wide · FEMA NRI December 2025

In Miami-Dade County, which includes Key Biscayne, the most common type is flood, with 30 recorded events in 2025.

Most common events:

FloodThunderstorm WindFlash FloodCoastal FloodDrought

Storm events by year

YearEventsTop TypeProperty Damage
202530Flood$229,000
202428Flood$3.9M
202340Flood$170,000
202230Flash Flood$19,000
202125Flood$1.5M
202037Flood$67,000
201941Flood$355,000
201821Funnel Cloud$21,000

Property damage is the National Weather Service's estimate filed with each event. “None reported” means the events were logged with $0 damage; “Not estimated” means no estimate was filed. Storms covering several counties aren't counted here, since NOAA doesn't split their damage by county.

0 earthquakes of magnitude 2.5+ within 100 miles in the past year

Miami-Dade County, county-wide

Key Biscayne is less than 1% of Miami-Dade County’s population, so county-wide figures may differ from local conditions.

Air Quality47 median AQI — Good

Days by air quality category (2025)

Air quality in Miami-Dade County, which includes Key Biscayne, is typically good — 206 good-air days per year.

Median AQI

47

Good Days

206

per year

Moderate Days

158

per year

Unhealthy Days

0

per year

Miami-Dade County, county-wide

Key Biscayne is less than 1% of Miami-Dade County’s population, so county-wide figures may differ from local conditions.

Climate91°F summers, 65°F winters

30-year climate averages (1991–2020) — monthly temperatures and precipitation

Key Biscayne has hot summers (avg high 91°F) and warm winters (avg low 65°F).

Spring (Mar–May)

84°/71°F

avg high / low

Summer (Jun–Aug)

91°/79°F

avg high / low

Fall (Sep–Nov)

87°/75°F

avg high / low

Winter (Dec–Feb)

79°/65°F

avg high / low

Annual Precipitation

55.3"

Annual Snowfall

0.0"

Hot Days/Year

55

days above 90°F

Freeze Days/Year

0

days below 32°F

Rainy Days/Year

127

Average month

High °FLow °FPrecip (in)
50°60°70°80°90°100°8"Jan: 2.44" precipitationFeb: 2.00" precipitationMar: 2.37" precipitationApr: 3.17" precipitationMay: 5.67" precipitationJun: 7.37" precipitationJul: 5.64" precipitationAug: 7.05" precipitationSep: 7.54" precipitationOct: 6.33" precipitationNov: 3.51" precipitationDec: 2.24" precipitation63°JJan: high 78°F, low 63°FFFeb: high 79°F, low 65°FMMar: high 81°F, low 67°FAApr: high 84°F, low 72°FMMay: high 87°F, low 75°FJJun: high 90°F, low 78°FJJul: high 91°F, low 79°F91°AAug: high 91°F, low 79°FSSep: high 90°F, low 79°FOOct: high 87°F, low 76°FNNov: high 83°F, low 71°FDDec: high 80°F, low 66°F
Show month-by-month table ↓
MonthHighLowPrecip
Jan78°F63°F2.44"
Feb79°F65°F2.00"
Mar81°F67°F2.37"
Apr84°F72°F3.17"
May87°F75°F5.67"
Jun90°F78°F7.37"
Jul91°F79°F5.64"
Aug91°F79°F7.05"
Sep90°F79°F7.54"
Oct87°F76°F6.33"
Nov83°F71°F3.51"
Dec80°F66°F2.24"

Healthcare

Hospitals, ratings, and health insurance in Key Biscayne

Uninsured

1.8%

of residents

No hospitals inside Key Biscayne's limits — nearest hospitals · within 15 miles

Coral Gables Hospital

Acute Care Hospitals · ER available · 6.2 mi away · Coral Gables

Doctors Hospital

Acute Care Hospitals · ER available · 7.1 mi away · Coral Gables

Miami VA Medical Center

Acute Care - Veterans Administration · ER available · 7.5 mi away · Miami

Adult Health · vs. the typical US place

Obesity23.5%US 36.8%
Diabetes11.1%US 12.6%
High blood pressure29.5%US 37.1%
Current smoking5.8%US 15.0%
No leisure-time physical activity20.3%US 26.6%
Depression12.6%US 23.0%
Asthma7.7%US 10.7%
Routine checkup in past year78.8%US 78.2%

Share of adults. Modeled estimates, not counted cases. “US” = the typical US place.

Medicare-certified hospitals only. Doesn’t include clinics, urgent care, or freestanding ERs.

Education17.9:1 student/teacher ratio

Schools and degree attainment in Key Biscayne

Key Biscayne's student/teacher ratio is 17.9:1 (higher than the national average of 16:1), and 77.2% of adults 25+ hold a bachelor's degree or higher.

Public Schools

1

within city limits

Private Schools

3

within city limits

College Degree Rate

77.2%

adults 25+ with bachelor's or higher

Student/Teacher Ratio

17.9:1

National avg 16:1

Schools located within city limits (2023) — school-level metrics change slowly year to year

Colleges Near Key Biscayne (within 15 miles)

Florida International University

13.8 mi away

Public · 4-year · 39,508 students · in-state tuition $6,565 · 74% graduate · median earnings $65,722 (10 yrs after entry)

University of Miami

7.3 mi away

Private nonprofit · 4-year · 12,913 students · in-state tuition $65,430 · 84% graduate · median earnings $84,093 (10 yrs after entry)

Barry University

13.2 mi away

Private nonprofit · 4-year · 2,212 students · in-state tuition $35,600 · 44% graduate · median earnings $64,837 (10 yrs after entry)

West Coast University-Miami

14 mi away

Private for-profit · 4-year · 961 students · in-state tuition $24,008 · 55% graduate · median earnings $104,344 (10 yrs after entry)

New Professions Technical Institute

8.2 mi away

Private for-profit · 2-year · 514 students · 100% graduate · median earnings $32,575 (10 yrs after entry)

SABER College

8.2 mi away

Private nonprofit · 2-year · 482 students · 93% graduate · median earnings $64,063 (10 yrs after entry)

Degree-granting colleges with 100+ students, placed by campus location (main campuses only — branch campuses are reported under their parent school)

Parks & Recreationclosest: Biscayne National Park, 14 mi

Nearby national parks, recreation areas and public libraries for Key Biscayne

Key Biscayne has 3 nearby national parks or recreation areas, closest being Biscayne National Park (14 mi away).

Nearby National Parks & Recreation Areas

Biscayne National Park

National Park

14 mi away

Everglades National Park

National Park

50 mi away

Big Cypress National Preserve

National Preserve

60 mi away

Public Libraries in Key Biscayne

Key Biscayne Branch Library

299 Crandon Blvd., Key Biscayne

Branch~56 hrs/week

Cities Near Key Biscayne

The closest cities within 60 miles

Planning a move to Key Biscayne?

Read our full moving guide — what it's really like to live here.

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Key Biscayne FAQ

Is Key Biscayne, Florida affordable?⌄

Key Biscayne's median rent is $3,500+/month, which is significantly above the national average. The median household income is $181,505/year. Median home value is $1,575,300.

Is Key Biscayne, Florida safe?⌄

Key Biscayne's violent crime rate was 56 per 100,000 residents in 2024, which is well below the national average — one of the safer cities in the country of 363/100k that year. Property crime rate is 776 per 100,000. As with any city, crime rates vary by neighborhood.

What is the job market like in Key Biscayne, Florida?⌄

Miami-Dade County, which includes Key Biscayne, has an unemployment rate of 2.7%, which is strong — well below the national average of 4.3%.

What is the cost of living in Key Biscayne, Florida?⌄

The cost of living in Key Biscayne is primarily driven by housing. Median rent is $3,500+/month and median household income is $181,505/year. The median home value is $1,575,300. About 63% of renters spend more than 30% of their income on housing.

How is the commute in Key Biscayne, Florida?⌄

The average commute in Key Biscayne is 24 minutes, which is about average compared to the national average of 26 minutes.

Data from the US Census Bureau, BLS, FBI, NOAA, EPA, Zillow Research and other public sources. Where our data comes from