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Living in
Key Biscayne.
The Census tops out at $3,500+ for rent; it doesn't publish exact figures above that.
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
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 Latino of any race; other groups are non-Hispanic
Top countries of origin (foreign-born)
Languages Spoken at Home
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)
Median home value
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
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 Biscayne: Miami-Dade County rate (county-wide) · BLS annual average
Unemployment Rate — 10 Year Trend
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
City residents, wherever they work
Median Salary by Occupation · metro area
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
Commute Time Distribution
Nearest airports · with airline service
- 10 mi
Miami International Airport (MIA)
Major hub26.5M passengers boarded in 2025
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).
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:
Storm events by year
| Year | Events | Top Type | Property Damage |
|---|---|---|---|
| 2025 | 30 | Flood | $229,000 |
| 2024 | 28 | Flood | $3.9M |
| 2023 | 40 | Flood | $170,000 |
| 2022 | 30 | Flash Flood | $19,000 |
| 2021 | 25 | Flood | $1.5M |
| 2020 | 37 | Flood | $67,000 |
| 2019 | 41 | Flood | $355,000 |
| 2018 | 21 | Funnel 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
Show month-by-month table ↓Hide table ↑
| Month | High | Low | Precip |
|---|---|---|---|
| Jan | 78°F | 63°F | 2.44" |
| Feb | 79°F | 65°F | 2.00" |
| Mar | 81°F | 67°F | 2.37" |
| Apr | 84°F | 72°F | 3.17" |
| May | 87°F | 75°F | 5.67" |
| Jun | 90°F | 78°F | 7.37" |
| Jul | 91°F | 79°F | 5.64" |
| Aug | 91°F | 79°F | 7.05" |
| Sep | 90°F | 79°F | 7.54" |
| Oct | 87°F | 76°F | 6.33" |
| Nov | 83°F | 71°F | 3.51" |
| Dec | 80°F | 66°F | 2.24" |
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
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 awayPublic · 4-year · 39,508 students · in-state tuition $6,565 · 74% graduate · median earnings $65,722 (10 yrs after entry)
Private nonprofit · 4-year · 12,913 students · in-state tuition $65,430 · 84% graduate · median earnings $84,093 (10 yrs after entry)
Private nonprofit · 4-year · 2,212 students · in-state tuition $35,600 · 44% graduate · median earnings $64,837 (10 yrs after entry)
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 awayPrivate for-profit · 2-year · 514 students · 100% graduate · median earnings $32,575 (10 yrs after entry)
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 awayEverglades National Park
National Park
50 mi awayBig Cypress National Preserve
National Preserve
60 mi awayPublic Libraries in Key Biscayne
Key Biscayne Branch Library
299 Crandon Blvd., Key Biscayne
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.
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