ZIP Code Tabulation Area · Florida

ZIP Code 33051: Key Colony Beach, FL

ZIP Code 33051 (Key Colony Beach, Monroe County, Florida) has an estimated 511 residents in 282 households. The median household income is $94,231, the median home value is $919,800 and the median gross rent is $1,929/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Some estimates have a large margin of error. 4 figures for this ZIP (bachelor's or higher, home value, owner-occupied, commute) are marked with *. ACS figures come from a sample, and small areas have fewer responses, so treat these numbers as rough ranges.

Total population

511

Margin of error ±179

Median household income

$94,231

Margin of error ±$44,176

Median home value

$919,800*

Margin of error ±$493,732· estimate has a large margin of error

Median gross rent

$1,929/mo

Margin of error ±$232

Median age

66.5 yrs

Margin of error ±4.2 yrs

Mean travel time to work

10.0 min*

Margin of error ±6.8 min· estimate has a large margin of error

How ZIP 33051 compares with Florida and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 3305166.5 yrsFlorida42.6 yrsUnited States38.9 yrs

Median household income

ZIP 33051$94,231Florida$74,568United States$80,734

Per capita income

ZIP 33051$50,017Florida$42,609United States$44,673

Poverty rate

ZIP 330518.2%Florida12.6%United States12.5%

Unemployment rate

ZIP 330510.0%Florida4.8%United States5.2%

Bachelor's degree or higher

ZIP 3305143.8%*Florida34.1%United States35.7%

Median home value

ZIP 33051$919,800*Florida$359,000United States$332,700

Median gross rent

ZIP 33051$1,929/moFlorida$1,669/moUnited States$1,413/mo

Owner-occupied homes

ZIP 3305168.1%*Florida67.6%United States65.2%

Mean travel time to work

ZIP 3305110.0 min*Florida28.0 minUnited States26.4 min

Worked from home

ZIP 330515.2%Florida15.7%United States15.1%

All figures for ZIP 33051

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 33051 — ACS 2020–2024 5-year estimates
Measure	ZIP 33051	Margin of error	Florida	United States
Total population	511	±179	22,416,077	334,922,499
Median age	66.5 yrs	±4.2 yrs	42.6 yrs	38.9 yrs
Households	282	±102	8,752,810	129,227,496
Median household income	$94,231	±$44,176	$74,568	$80,734
Per capita income	$50,017	±$11,829	$42,609	$44,673
Poverty rate	8.2%	±5.8 pts	12.6%	12.5%
Unemployment rate	0.0%	±6.5 pts	4.8%	5.2%
Bachelor's degree or higher	43.8%*	±17.7 pts	34.1%	35.7%
Median home value	$919,800*	±$493,732	$359,000	$332,700
Median gross rent	$1,929/mo	±$232	$1,669/mo	$1,413/mo
Owner-occupied homes	68.1%*	±25.0 pts	67.6%	65.2%
Mean travel time to work	10.0 min*	±6.8 min	28.0 min	26.4 min
Worked from home	5.2%	±7.9 pts	15.7%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 33051
Group	ZIP 33051	Florida	United States
White alone, not Hispanic or Latino	90.6%	50.4%	57.4%
Black or African American alone, not Hispanic or Latino	0.0%	14.6%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	0.0%	0.1%	0.5%
Asian alone, not Hispanic or Latino	0.0%	2.9%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.0%	0.1%	0.2%
Some other race alone, not Hispanic or Latino	0.0%	0.7%	0.6%
Two or more races, not Hispanic or Latino	0.0%	3.8%	4.3%
Hispanic or Latino (of any race)	9.4%	27.4%	19.3%

Where ZIP 33051 is

State: Florida
Main county: Monroe County
Largest overlapping place: Key Colony Beach (100% of the ZIP's land area)
Land area: 0.44 sq mi· about 1,161 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Monroe County

33001 Monroe County, FL 33036 Islamorada, Village of Islands, FL 33037 North Key Largo, FL 33040 Key West, FL 33042 Monroe County, FL 33043 Big Pine Key, FL 33050 Marathon, FL 33070 Tavernier, FL

See every ZIP code in Florida, or compare ZIP 33051 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.