City safety & data profile

Key BiscayneFL

Key Biscayne, FL is a 13K-resident city in Miami-Dade County with a median household income of $181,505.

Miami-Dade County, Florida. Federal health, economic, and safety indicators for Key Biscayne, drawn from the U.S. Census Bureau American Community Survey, CDC PLACES, and CMS Hospital Compare. Key Biscayne has a population larger than 18% of the 4,640 U.S. cities Areazine tracks, and a median home value of $1,575,300.

Data updated 2026-07-22

13K
Population
Top 82%
By size
$181,505
Median income
$1,575,300
Median home
5.5%
Poverty rate

The read on Key Biscayne

Key Biscayne posts a median household income higher than 97% of U.S. cities Areazine tracks.

Top 3%
by median income, US cities

Where Key Biscayne income ranks nationally

Median household income vs. every place Areazine profiles (place-level ACS)

$181,505 Top 3% higher than 97% of 3,889 places Areazine profiles

$0–$20,000: 0 places Areazine profiles (0%). Below this entry. $20,000–$40,000: 71 places Areazine profiles (2%). Below this entry. $40,000–$60,000: 788 places Areazine profiles (20%). Below this entry. $60,000–$80,000: 1,055 places Areazine profiles (27%). Below this entry. $80,000–$100,000: 768 places Areazine profiles (20%). Below this entry. $100,000–$120,000: 515 places Areazine profiles (13%). Below this entry. $120,000–$140,000: 308 places Areazine profiles (8%). Below this entry. $140,000–$160,000: 171 places Areazine profiles (4%). Below this entry. $160,000–$180,000: 92 places Areazine profiles (2%). Below this entry. $180,000–$200,000: 47 places Areazine profiles (1%). This entry sits in this band. $200,000–$220,000: 28 places Areazine profiles (1%). Above this entry. $220,000–$240,000: 18 places Areazine profiles (0%). Above this entry. $240,000–$260,000: 28 places Areazine profiles (1%). Above this entry. FL $0 $260,000 every profiled place, bucketed by value

Each bar is a $20K-wide band; taller bars hold more places Areazine profiles. 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, American Community Survey (place-level) · 2024 ACS 5-year

The quick read

Reading Key Biscayne, FL beyond the headline numbers

Key Biscayne sits inside Miami-Dade County, Florida, at roughly 25.69°N, -80.16°W. Population 12,990, $181,505 median household income. Median home value $1,575,300, median rent $3,501. Poverty rate 5.5%, read against that income figure since two cities on the same median can differ underneath it.

CDC PLACES: Key Biscayne's highest-prevalence health measure is short sleep duration at 31.6%, then high blood pressure at 29.5%.

Sources: U.S. Census ACS, CDC PLACES, CMS Hospital Compare, plus live alerts for Key Biscayne from FEMA, NOAA, FDA, and CPSC. Comparison bars benchmark each metric against the national reference.

Population
12,990
Key Biscayne
Median Income
$181,505
+167% vs avg
Median Home Value
$1,575,300
+592% vs avg
Median Age
42.2
years

10-Year Trends 2013–2024

County-level trend (Miami-Dade County) - Key Biscayne's own historical series isn't separately published by the Census Bureau, so these year-over-year figures track the surrounding county, not the city alone.

20132024
Population
2.7M+7%
Median Income
$71,753+66%
Median Home Value
$463,000+130%
Poverty Rate
14.7%-26%
Unemployment
4.6%-61%

Economics

Economics indicators for Key Biscayne, FL
IndicatorValue
Median Rent
$3,501/mo
Poverty Rate
5.5% -61% vs avg
Unemployment 2.8%
Bachelor's Degree+ 77.2%
Work From Home 34.6%
Public Transit 1.9%

Population

White 36.6%
African American 0.8%
Asian 0.1%

Health Profile 15 measures

Health Indicators

Short Sleep Duration
31.6%
High Blood Pressure
29.5%
Obesity
23.5%
Physical Inactivity
20.3%
Binge Drinking
15.5%
Lack of Health Insurance
13.7%
Diabetes
11.1%
Frequent Mental Distress
10.6%
Frequent Physical Distress
10.4%
Current Asthma
7.7%

Preventive Care

Dental Visit 71.1%
Annual Checkup 78.8%

Other Measures

Current Smoking
5.8%
Coronary Heart Disease
5.5%
Stroke
2.6%

Frequently Asked Questions 5

What is the population of Key Biscayne, FL? ▼
Key Biscayne, FL has a population of 12,990 people, located in Miami-Dade County, Florida.
What is the median household income in Key Biscayne? ▼
The median household income in Key Biscayne, FL is $181,505 per year, per the U.S. Census ACS. The poverty rate is 5.5%.
What is the median home value in Key Biscayne? ▼
The median home value in Key Biscayne, FL is $1,575,300. Median rent is $3,501/month.
What are the top health concerns in Key Biscayne? ▼
The top health indicators in Key Biscayne include Short Sleep Duration (31.6%), High Blood Pressure (29.5%), Obesity (23.5%). Data from CDC PLACES.
What is the median age in Key Biscayne? ▼
The median age in Key Biscayne, FL is 42.2 years. 77.2% of residents have a bachelor's degree or higher.

Safety Context

Key Biscayne, FL is located in Miami-Dade County, Florida. With a population of 13K and a $181,505 median household income, the community faces health challenges including short sleep duration and high blood pressure. Safety alerts for the Key Biscayne area are monitored from federal and state agencies including FEMA, NOAA, FDA, and CPSC.

Safety Guides

How Product Recalls Work

CPSC, FDA & NHTSA recall process explained

Understanding Weather Alerts

Watch vs warning vs advisory explained

Earthquake Magnitude Explained

What the numbers mean & when to act
All safety guides →

Primary source data

EPA Outdoor Air Quality Data

Federal monitoring network, every measurement we report

AirNow - Florida

Real-time AQI for every monitored Florida location

National Weather Service

NOAA active watches, warnings, advisories

CDC Air Quality & Health

Health-impact reference for every AQI category

EPA NAAQS standards

National Ambient Air Quality Standards, the regulatory thresholds

Nearby Cities 8

Miami, FL 487K Coconut Grove, FL 20K Little Havana, FL 53K Miami Beach, FL 92K Coral Gables, FL 51K South Miami, FL 12K Allapattah, FL 54K Pinecrest, FL 19K
All cities in Florida → Compare Key Biscayne vs Miami → All comparisons → Browse all cities

Using Key Biscayne's profile

Use this as a starting research checklist, not a verdict on whether to live here.

  • Check live recalls, weather and hazard alerts scoped to the Key Biscayne area before relying on national headlines. Check your area
  • Read the poverty rate alongside the income figure, two places with the same median can have very different realities.
  • Compare Key Biscayne against Florida peers on any ranking lens. Explore Florida

Population and economics (income, home value, poverty, education) are place-level U.S. Census ACS; health is CDC PLACES; hospital counts reflect facilities in and around the city.

Data Sources

All data on this page comes from official U.S. government sources. Population and economic data from the Census Bureau American Community Survey (2024 5-year estimates, place geography). Health data from the CDC PLACES program (2023). Hospital ratings from CMS Hospital Compare (2024). Climate data from NOAA. Education data from NCES. Cost of living from Bureau of Economic Analysis. Crime statistics, where referenced on Areazine, originate from the FBI Crime Data Explorer. Housing market figures referenced on Areazine come from HUD Fair Market Rents. Census economics and population are at place geography; some health and hospital indicators are reported at the county level (Miami-Dade County) where that is the smallest published unit.

Every figure on Areazine is published directly from official U.S. government sources, no number is typed in by an editor. City demographic and health figures are compiled directly from U.S. Census, CDC, and CMS releases, updated quarterly within 30 days of upstream release. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026.