Key Colony Beach, FL 33051 ZIP Code Profile

Related Place Profiles:
Key Colony Beach, FL | Marathon, FL

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ZIP Code 33051: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Key Colony Beach, FL 33051

Acceptable Alternative
Key Col Bch, FL 33051
Marathon, FL 33051

  • ZIP Code Type: PO BOX
  • County: Monroe County
  • Centroid: Latitude 24.721, Longitude -81.021
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 55
  • PO Box Addresses: 644
  • Residential Addresses: 1
    • Multi-Family Addresses: 0
    • Single Family Addresses: 1

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


33051 ZIP Code Map

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Key Colony Beach, FL 33051 Data & Demographics (As of July 1, 2017)


Total Population 831
Daytime Population: Workers 167
Daytime Population: Residents 610
Total Daytime Population (TDP) 777
Ratio TDP/Total Population1 0.94
Population in Households 822
Population in Familes 586
Population in Group Qrtrs 9
Population Density2 1,931
Diversity Index3 19


Median Household Income $56,612
Average Household Income $94,500
Per Capita Income $51,237


Total Housing Units 1,529 (100%)
Owner Occupied HU 309 (20.2%)
Renter Occupied HU 140 ( 9.2%)
Vacant Housing Units 1,080 (70.6%)
Median Home Value $613,971
Average Home Value $660,518


Total Households 449
Average Household Size 1.83
Family Households 262
Average Family Size 2
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 race 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.


2010-2017 2017-2022
Population 0.6% 0.78%
Households 0.57% 0.75%
Families 0.43% 0.75%
Median Household Income   1.92%
Per Capita Income   3.32%

Key Colony Beach, FL 33051 - Peer Comparisons by Rank and Percentile

The table below compares 33051 to the other 967 ZIP Codes in Florida by rank and percentile using July 1, 2017 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 # 919 5th
Population Density # 372 62nd
Diversity Index # 894 8th
Median Household Income # 273 72nd
Per Capita Income # 56 94th

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

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