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 2026-09-05

13K
Population (place)
Bottom 19%
By size
$181,505
Median income (place)
$1,575,300
Median home (place)
5.5%
Poverty rate (place)
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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

Key Biscayne $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

Largest cities in FL

Population among 310 FL places with 10,000+ residents and ACS income on Areazine. Tooltip shows the income rank in the same pool.

residents

What this shows Jacksonville is the largest FL city on this list; Pinecrest leads median income.

Source U.S. Census Bureau, American Community Survey (place-level) As of 2024 ACS 5-year

Highest median incomes in FL

Median household income among the same 310-city pool. Tooltip shows the population rank.

median

What this shows Pinecrest posts the highest place-level median income in FL; Jacksonville is largest by headcount.

Source U.S. Census Bureau, American Community Survey (place-level) As of 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.

Hardship is low by national standards: 5.5% of Key Biscayne, FL residents live below the poverty line, in the least-affected quarter of the 3,890 cities reporting a rate.

The median home in Key Biscayne costs around 8.7 times what a median household earns in a year -- the most expensive quarter of reporting cities, and far enough ahead of local pay that ownership is largely closed to median earners.

34.6% of Key Biscayne workers report working from home, the highest quarter of reporting cities. Where that share runs this high, local income increasingly reflects employers located somewhere else.

Among the CDC measures on this page, frequent mental distress departs furthest from its peer median: 10.6% in Key Biscayne, the lowest-prevalence quarter of the 3,759 cities reporting that measure.

At 42.2 years, Key Biscayne's median age is in the oldest quarter of reporting cities.

Sources: U.S. Census ACS, CDC PLACES, CMS Hospital Compare, plus live alerts for Key Biscayne from FEMA, NOAA, FDA, and CPSC. Economic comparison bars use the unweighted average across tracked Census places with a reported value, not a household-weighted national median.

Population (place)
12,990
Key Biscayne · Census Place
Median Income (place)
$181,505
+103% vs avg
Median Home Value (place)
$1,575,300
+281% vs avg
Median Age (place)
42.2
years · ACS place

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% -56% 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%

What alerts and safety updates affect Key Biscayne?

No area-tagged alerts are on record for Key Biscayne right now. New federal and counterpart-agency notices still land in the site feed as agencies publish them.

City alert dispatch desk

Sheet FL-KEY-BISCAYNE · Key Biscayne

Key Biscayne: no area-tagged alerts on record — state hubs carry the live CAP stream.

  • FEED-QUIET No tagged alerts
  • LEAD-NONE Feed idle
  • DESK-IDLE Awaiting feed

Counts reflect published articles tagged to Key Biscayne; untagged NOAA county warnings may still appear in the site feed. Browse Florida state hubs · Methodology

Read with this city profile

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.

Nationwide cities with similar poverty or income 8

Two ACS-derived peer sets for Key Biscayne, both outside Florida so the neighborhoods are not the geographic nearby list below.

Similar poverty rate

Nearest place-level ACS poverty rates outside FL (5.5% here).

Similar median income

Nearest place-level ACS median household incomes outside FL ($181,505 here).

Compare Key Biscayne with another city

Pick a second U.S. city to open a side-by-side profile on population, income, health, and hospitals, the same federal datasets as this page.

Quick picks:

Nearby Cities 8

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. County-level trends are labeled when shown.

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 (place-level ACS), CDC, and CMS releases, updated quarterly within 30 days of upstream release. County-level trends are labeled when shown. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026.