| City : | Duck Key |
| County : | Monroe County |
| State : | Florida (FL) |
| Land Area : | 0.60 sq mi |
| Water Area : | 0.03 sq mi |
| Latitude : | 24.7734932 |
| Longitude : | -80.9107227 |
| Population (2010): | 621 |
| Population Estimate (2012) : | 534 |
| Population Density : | 1,037.42/sq mi |
| Housing Units (2012) : | 865 |
| Median Household Income (2012) : | $50,887 (Florida : $47,309, USA : $53,046) |
| Median Family Income (2012) : | $76,500 (Florida : $57,128, USA : $64,585) |
| Median House Price (2012) : | $816,800 (Florida : $170,800, USA : $181,400) |
Duck Key Zip Codes
| 33050 (8,922) |