Big Pine Key, Florida
| Big Pine Key, Florida | |
|---|---|
| Location in Monroe County and the state of Florida | |
| U.S. Census Bureau map showing CDP boundaries | |
| Coordinates: 24°40′12″N 81°21′14″W / 24.67000°N 81.35389°W | |
| Country | United States | 
| State | Florida | 
| County | Monroe | 
| Area | |
|  • Total | 10.31 sq mi (26.70 km2) | 
| • Land | 10.20 sq mi (26.43 km2) | 
| • Water | 0.11 sq mi (0.28 km2) | 
| Elevation | 3 ft (1 m) | 
| Population  (2020) | |
|  • Total | 4,521 | 
| • Density | 443.06/sq mi (171.07/km2) | 
| Time zone | UTC-5 (Eastern (EST)) | 
| • Summer (DST) | UTC-4 (EDT) | 
| ZIP code | 33043 | 
| Area code | 305 | 
| FIPS code | 12-06425 | 
Big Pine Key is a census-designated place and unincorporated community in Monroe County, Florida, United States, on an island of the same name in the Florida Keys. As of the 2020 census, the town had a total population of 4,521.