Zip Code 33149 — Key Biscayne, FL
33149 is a ZIP Code associated with Key Biscayne, FL, located within Miami-Dade. 33149 ranks #69 out of 80 ZIP codes in Miami-Dade County by population (and #604 out of 1,011 in FL). The area supports an estimated population of 14,791 residents across Data Pending housing units, with a population density of 1,212.8 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (25.724790, -80.161180)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 33149 |
| Primary City | Key Biscayne |
| State / Province | FL |
| County | Miami-Dade |
| Total Population | 14,791 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 1,212.8 people/sq mi |
| Timezone | America/New_York |
How 33149 Compares
| Metric | ZIP 33149 | Miami-Dade County | FL State Average |
|---|
| Population | 14,791 | 2,738,360 (Total) | 22,412,596 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 1,212.8 /sq mi | -- | -- |
| County Pop Rank | #69 of 80 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →