Miami, FL vs Key Biscayne, FL

Side-by-side comparison from the latest government data.

MetricMiami, FLKey Biscayne, FL
Population459,74514,791
Median Household Income$62,462$181,505
Median Rent$1,758/mo$3,500+/mo
Median Home Value$518,100$1,575,300
Cost of Living (US = 100)114114
Renters Paying 30%+ of Income60.4%63.3%
Poverty Rate19.4%5.5%
Unemployment Rate2.4%2.7% (county)
Violent Crime Rate /100k35856
Property Crime Rate /100k2,243776
Median AQI4747
Good AQI Days /yr206206
Summer Highs87°F91°F
Winter Lows63°F65°F
Snowfall0 in/yr0 in/yr
Avg Commute27.3 min23.7 min
Hospitals4—
Avg Hospital Rating2.7 / 5—
Students per Teacher18.917.9
College Degree Rate37.4%77.2%
Foreign-Born %57.7%58.1%
Population Growth (2020–2025)+10.8%+0.1%

Green = clearly better (more than 5% apart). Population, growth, weather, hospital count and foreign-born share aren’t scored.
The Census tops out at $3,500+ for rent; it doesn't publish exact figures above that. Two capped values can't be compared, so neither is marked better.