State: Florida
County: Monroe County
Close cities: Islamorada, Village of Islands, FL, Marathon, FL, Layton, FL, Key Colony Beach, FL, Key Colony Beach, FL, Layton, FL, Big Pine Key, FL, Tavernier, FL, Homestead, FL
Duck Key Population (census data)| Total | 408 |
| Male | 205 (50.2%) |
| Female | 203 (49.8%) |
Population Density: 474 people per sq. mile
Cost of Living Index: 161.0 (US Avg is 100)
Duck Key Elevation: 5 feet above sea level
Land Area: 0.86 square miles
Median Household Income: $56,113
Zip Codes: