ZIP Code Tabulation Area · Florida

ZIP Code 33042: Monroe County, FL

ZIP Code 33042 (Monroe County, Florida) has an estimated 6,441 residents in 2,820 households. The median household income is $103,041, the median home value is $856,500 and the median gross rent is $2,271/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

Total population

6,441

Margin of error ±651

Median household income

$103,041

Margin of error ±$17,444

Median home value

$856,500

Margin of error ±$47,643

Median gross rent

$2,271/mo

Margin of error ±$180

Median age

52.5 yrs

Margin of error ±3.7 yrs

Mean travel time to work

29.6 min

Margin of error ±7.0 min

How ZIP 33042 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 3304252.5 yrsFlorida42.6 yrsUnited States38.9 yrs

Median household income

ZIP 33042$103,041Florida$74,568United States$80,734

Per capita income

ZIP 33042$63,808Florida$42,609United States$44,673

Poverty rate

ZIP 330428.4%Florida12.6%United States12.5%

Unemployment rate

ZIP 330423.1%Florida4.8%United States5.2%

Bachelor's degree or higher

ZIP 3304246.7%Florida34.1%United States35.7%

Median home value

ZIP 33042$856,500Florida$359,000United States$332,700

Median gross rent

ZIP 33042$2,271/moFlorida$1,669/moUnited States$1,413/mo

Owner-occupied homes

ZIP 3304282.7%Florida67.6%United States65.2%

Mean travel time to work

ZIP 3304229.6 minFlorida28.0 minUnited States26.4 min

Worked from home

ZIP 3304225.2%Florida15.7%United States15.1%

All figures for ZIP 33042

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 33042 — ACS 2020–2024 5-year estimates
Measure	ZIP 33042	Margin of error	Florida	United States
Total population	6,441	±651	22,416,077	334,922,499
Median age	52.5 yrs	±3.7 yrs	42.6 yrs	38.9 yrs
Households	2,820	±253	8,752,810	129,227,496
Median household income	$103,041	±$17,444	$74,568	$80,734
Per capita income	$63,808	±$9,412	$42,609	$44,673
Poverty rate	8.4%	±2.9 pts	12.6%	12.5%
Unemployment rate	3.1%	±2.5 pts	4.8%	5.2%
Bachelor's degree or higher	46.7%	±4.5 pts	34.1%	35.7%
Median home value	$856,500	±$47,643	$359,000	$332,700
Median gross rent	$2,271/mo	±$180	$1,669/mo	$1,413/mo
Owner-occupied homes	82.7%	±0.6 pts	67.6%	65.2%
Mean travel time to work	29.6 min	±7.0 min	28.0 min	26.4 min
Worked from home	25.2%	±4.8 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 33042
Group	ZIP 33042	Florida	United States
White alone, not Hispanic or Latino	80.5%	50.4%	57.4%
Black or African American alone, not Hispanic or Latino	0.1%	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	0.3%	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	1.6%	0.7%	0.6%
Two or more races, not Hispanic or Latino	3.2%	3.8%	4.3%
Hispanic or Latino (of any race)	14.1%	27.4%	19.3%

Where ZIP 33042 is

State: Florida
Main county: Monroe County
Largest overlapping place: Cudjoe Key (19% of the ZIP's land area)
Land area: 27.59 sq mi· about 233 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 33043 Big Pine Key, FL 33050 Marathon, FL 33051 Key Colony Beach, FL 33070 Tavernier, FL

See every ZIP code in Florida, or compare ZIP 33042 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.