33149 ZIP Code Profile, Map, Data & Demographics

Related Place Profiles:
Key Biscayne, FL | Miami, FL

ZIP Code 33149: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Key Biscayne, FL 33149

Acceptable Alternative
Miami, FL 33149

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  • ZIP Code Type: STANDARD
  • County: Miami-Dade County
  • Centroid: Latitude 25.694, Longitude -80.167
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 568
  • PO Box Addresses: 167
  • Residential Addresses: 6,706
    • Multi-Family Addresses: 5,220
    • Single Family Addresses: 1,486

The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2021, Maps updated: May 5, 2021.


Key Biscayne, FL 33149 Data & Demographics (As of July 1, 2021)


Total Population 13,302 (100%)
Population in Households 13,287 (99.9%)
Population in Families 11,344 (85.3%)
Population in Group Quarters1 15 ( 0.1%)
Population Density 2,649
Diversity Index2 46


Median Household Income $146,708
Average Household Income $206,585
% of Income for Mortgage4 41%
Per Capita Income $75,751
Wealth Index5 261


Total HU (Housing Units) 7,185 (100%)
Owner Occupied HU 3,031 (42.2%)
Renter Occupied HU 1,846 (25.7%)
Vacant Housing Units 2,308 (32.1%)
Median Home Value $1,418,311
Average Home Value $1,439,525
Housing Affordability Index3 60


Total Households 4,877
Average Household Size 2.72
Family Households 3,501
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2021 2021-2026
Population 0.62% 0.55%
Households 0.31% 0.37%
Families 0.32% 0.43%
Median Household Income   1.73%
Per Capita Income   1.53%
Owner Occupied HU   0.77%

Key Biscayne, FL 33149 - Peer Comparisons by Rank and Percentile

The table below compares 33149 to the other 969 ZIP Codes in Florida by rank and percentile using July 1, 2021 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 637 34th
Population Density # 298 69th
Median Household Income # 4 100th
Housing Affordability Index # 41 4th
Per Capita Income # 20 98th
Diversity Index # 572 41st

Additional comparisons and rankings can be made with a VERY EASY TO USE Florida Census Data Comparison Tool.

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