Postal Codes

33042 ZIP Code

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ZIP code 33042 covers Summerland Key, Florida, with a population of about 6,781 and a median household income of $101,625.

Population
6,781246 per square mile
Median age
52.513.8 points above the US average
Median household income
$101,6251.4× the Florida median
Poverty rate
9.2%3.2 points below the US average
Typical home value
$1,033,046up 30.9% in five years
Median rent
$2,2521.4× the Florida median
Degree or higher
44.7%9.7 points above the US average
Homeownership
78.3%13.3 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
211

Where 33042 is

Summerland Key, Florida — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population6,781
Median age52.5
Family households68%
Born outside the US7.6%
Speaks a language other than English at home9.2%
White (non-Hispanic)81.4%
Black (non-Hispanic)2.6%
Asian (non-Hispanic)0.4%
Hispanic or Latino12%
Veterans10.8%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$101,625
Income per person$68,882
Poverty rate9.2%
Households on SNAP or cash assistance3.7%

Household income distribution

Under $10k6.4%
$10–15k0.6%
$15–20k2.3%
$20–25k1.4%
$25–30k0.3%
$30–35k1.8%
$35–40k2.5%
$40–45k5.1%
$45–50k2.5%
$50–60k5.0%
$60–75k8.9%
$75–100k11.9%
$100–125k11.8%
$125–150k9.0%
$150–200k13.9%
$200k or more16.5%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed3,450
Mean adjusted gross income$170,799
Returns declaring $200,000 or more15.7%
Returns, under $25k19.1%
Returns, $25k–$50k18.3%
Returns, $50k–$75k13.3%
Returns, $75k–$100k10.4%
Returns, $100k–$200k23.2%
Returns, $200k or more15.7%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$759,600
Median gross rent$2,252
Rent as a share of household income33.3%
Owner-occupied78.3%
Vacant homes38.5%
Median year built1988

What the homes are

Detached house85%
Attached house1.5%
2 to 4 units3.8%
5 to 19 units0.6%
Mobile home7.4%
Boat, RV or van1.8%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$1,033,046as of 2026-07
Typical home value, 1 yearup 1%
Typical home value, 5 yearsup 30.9%
Typical home value, 10 yearsup 92.4%
Typical home value since 2000
201620212026$1,081,240$536,897

$536,897 in 2016 to $1,033,046 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.4%
Bachelor's degree or higher44.7%
High school diploma or higher97.7%
Works from home22.3%
Drives to work alone65.8%
Takes public transport0%
Commutes 45 minutes or more10.5%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity24.4% 9 pts below the national average of 33.4%
Diagnosed diabetes12.1% same as the national average of 12%
Currently smokes11.2% 2 pts below the national average of 13.2%
High blood pressure38% 3.9 pts above the national average of 34.1%
Fair or poor general health15.6% 4.7 pts below the national average of 20.3%
No health insurance (18–64)8.9% 2.4 pts below the national average of 11.3%
Depression16.6% 5.3 pts below the national average of 21.9%
No leisure-time physical activity20.1% 5.3 pts below the national average of 25.4%
Arthritis29.4% 4.3 pts above the national average of 25.1%
Binge drinking16.7% 0.7 pts above the national average of 16%
Taking blood pressure medication81.1% 6.4 pts above the national average of 74.7%
Cancer (non-skin)12.1% 4.4 pts above the national average of 7.7%
Current asthma9.1% 1.3 pts below the national average of 10.4%
Coronary heart disease7.7% 1.5 pts above the national average of 6.2%
Routine check-up in past year80.4% 3.7 pts above the national average of 76.7%
Cholesterol screening90.9% 5 pts above the national average of 85.9%
Cognitive disability10.7% 4.1 pts below the national average of 14.8%
Colorectal screening71% 6.7 pts above the national average of 64.3%
COPD7% same as the national average of 6.6%
Visited a dentist65.2% 3.9 pts above the national average of 61.3%
Any disability27.2% 3.5 pts below the national average of 30.7%
Hearing disability7.8% 1.1 pts above the national average of 6.7%
High cholesterol42.2% 6 pts above the national average of 36.2%
Independent living disability6.2% 2.2 pts below the national average of 8.4%
Mammography use74.9% 1 pts below the national average of 75.9%
Poor mental health (14+ days)13.7% 3.1 pts below the national average of 16.8%
Mobility disability13.2% 0.8 pts below the national average of 14%
Poor physical health (14+ days)13.4% same as the national average of 13.5%
Self-care disability3.2% 0.8 pts below the national average of 4%
Sleeps under 7 hours33.1% 3.3 pts below the national average of 36.4%
Stroke3.5% same as the national average of 3.4%
All natural teeth lost7.9% 5.1 pts below the national average of 13%
Vision disability4.1% 1.5 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments211
People employed1,090
Annual payroll$52,268,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 87.9% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 4 census tracts this ZIP code covers
Expected annual loss82.8 out of 100
Community resilience24.2 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Coastal flooding99.6Very High at its worst in this ZIP code
Hurricane97.6Very High at its worst in this ZIP code
Lightning82Relatively High at its worst in this ZIP code
Wildfire66.5Relatively Low at its worst in this ZIP code
Landslide43.5Very Low at its worst in this ZIP code
Heat wave35.6Relatively Low at its worst in this ZIP code
Strong wind21.4Relatively Low at its worst in this ZIP code
Tornado19.3Very Low at its worst in this ZIP code
Cold wave15.8Very Low at its worst in this ZIP code
River flooding7.3Very Low at its worst in this ZIP code
Hail6.6Very Low at its worst in this ZIP code
Earthquake0.9Very Low at its worst in this ZIP code
Compared with Florida and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPFloridaUnited States
Median household income$101,625$71,711$78,538
Income per person$68,882$41,055$43,289
Poverty rate9.2%12.6%12.4%
Median home value$759,600$325,000$303,400
Median gross rent$2,252$1,564$1,348
Homeownership78.3%67.3%65%
Bachelor's degree or higher44.7%33.2%35%
Unemployment rate3.4%4.8%5.2%
Works from home22.3%13.9%13.5%
Born outside the US7.6%21.4%13.9%
Median age52.542.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationKEY WEST NAS, FL US19.8 km away
Rain in a year44 in

Average high and low by month

January75.3°F / 65.7°F2.15 in rain
February76.9°F / 67.5°F1.51 in rain
March79.2°F / 69.9°F1.41 in rain
April82.6°F / 73.3°F2.36 in rain
May85.5°F / 76.9°F3.44 in rain
June88.1°F / 79.7°F4.91 in rain
July89.5°F / 81°F4.28 in rain
August89.9°F / 81°F5.54 in rain
September88.5°F / 79.9°F8.08 in rain
October85.4°F / 77.6°F5.71 in rain
November80.3°F / 72.8°F2.34 in rain
December77.1°F / 68.7°F1.89 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket35% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Monroe County School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability34more vulnerable than 34% of US census tracts
Socioeconomic status41more vulnerable than 41% of US census tracts
Household characteristics47more vulnerable than 47% of US census tracts
Racial and ethnic minority status37more vulnerable than 37% of US census tracts
Housing type and transport27more vulnerable than 27% of US census tracts
Walkability10.4 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

33043 Big Pine Key, FL15 km away
33040 Key West, FL30.1 km away
33041 Key West, FL30.1 km away
33045 Key West, FL30.1 km away
33052 Marathon Shores, FL45.6 km away
33050 Marathon, FL48.1 km away
33051 Key Colony Beach, FL49.9 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Monroe County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area27.59 sq mi
Water area95.78 sq mi
Population density246 people per sq mi
Latitude, longitude24.6670, -81.5099

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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