Key Biscayne, FL vs Miami Beach, FL

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

MetricKey Biscayne, FLMiami Beach, FL
Population14,79182,031
Median Household Income$181,505$72,856
Median Rent$3,500+/mo$1,826/mo
Median Home Value$1,575,300$556,700
Cost of Living (US = 100)114114
Renters Paying 30%+ of Income63.3%57.9%
Poverty Rate5.5%14.4%
Unemployment Rate2.7% (county)2.3%
Violent Crime Rate /100k561,074
Property Crime Rate /100k7768,575
Median AQI4747
Good AQI Days /yr206206
Summer Highs91°F87°F
Winter Lows65°F63°F
Snowfall0 in/yr0 in/yr
Avg Commute23.7 min26.7 min
Hospitals—1
Avg Hospital Rating—3.0 / 5
Students per Teacher17.920
College Degree Rate77.2%52.9%
Foreign-Born %58.1%52.9%
Population Growth (2020–2025)+0.1%-1.6%

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.