Key Biscayne, Florida

Key Biscayne population, 2020 to 2024

Key Biscayne added 365 residents from July 2020 to July 2024, a change of +2.5%. In the latest year it moved by +221. Among 229 Florida places of 5,000 or more, that growth ranks 176th; the median place changed by +4.8%. The median place of 5,000+ in Florida has 21,954 people, so Key Biscayne is 69% of it.

Key Biscayne covers 1.25 square miles of land and 0.46 of water, for 12,089 people per square mile of land. The median Florida place of 5,000+ has 2,498, so Key Biscayne is denser than the typical town.

What county Key Biscayne is in

All of Key Biscayne's residents live in Miami-Dade County, which had 2,838,461 residents in 2024. Key Biscayne holds 0.5% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Key Biscayne

1 ZIP Code Tabulation Area (ZCTA) overlaps Key Biscayne by at least 10% of the ZCTA's or the village's land: 33149. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a village that annexed land after 2020 may reach into ZIP codes not listed here.

Where Key Biscayne is

The Census internal point of Key Biscayne is at 25.690700, -80.165600. Tallahassee, the capital, is 412.9 miles NW in a straight line. The nearest larger place is Coral Gables, FL (50,379 people), 6.0 miles away. The nearest city of 100,000 or more is Miami, FL, 6.4 miles away.

Daylight in Key Biscayne

At 25.69° N, Key Biscayne gets about 13 h 45 min of daylight around the June solstice and 10 h 32 min around the December solstice, a swing of 3 h 13 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Key Biscayne

The eight nearest incorporated places of 1,000+ in Florida, measured between internal points. The closest is Coral Gables, 6.0 miles away, with 50,379 people.