Postal Codes

33040 ZIP Code

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ZIP code 33040 covers Key West, Florida, with a population of about 36,091 and a median household income of $79,038.

Population
36,0912,036 per square mile
Median age
44.45.7 points above the US average
Median household income
$79,0381.1× the Florida median
Poverty rate
10.8%1.6 points below the US average
Typical home value
$957,004up 26.7% in five years
Median rent
$2,0791.3× the Florida median
Degree or higher
37.8%2.8 points above the US average
Homeownership
48.3%16.7 points below the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
1,771

Where 33040 is

Key West, 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

Population36,091
Median age44.4
Family households55%
Born outside the US22.1%
Speaks a language other than English at home24.3%
White (non-Hispanic)55.7%
Black (non-Hispanic)12.3%
Asian (non-Hispanic)1.8%
Hispanic or Latino26.1%
Veterans8.3%
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$79,038
Income per person$56,199
Poverty rate10.8%
Households on SNAP or cash assistance10.8%

Household income distribution

Under $10k5.2%
$10–15k3.1%
$15–20k1.8%
$20–25k2.4%
$25–30k2.7%
$30–35k3.4%
$35–40k3.9%
$40–45k2.9%
$45–50k3.0%
$50–60k7.3%
$60–75k12.0%
$75–100k11.5%
$100–125k8.1%
$125–150k8.8%
$150–200k9.1%
$200k or more14.8%

Income as declared to the IRS

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

Tax returns filed19,040
Mean adjusted gross income$131,483
Returns declaring $200,000 or more9.3%
Returns, under $25k25.9%
Returns, $25k–$50k26.4%
Returns, $50k–$75k15.7%
Returns, $75k–$100k8.7%
Returns, $100k–$200k14.0%
Returns, $200k or more9.3%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$766,400
Median gross rent$2,079
Rent as a share of household income36.5%
Owner-occupied48.3%
Vacant homes20.8%
Median year built1972

What the homes are

Detached house44.1%
Attached house10%
2 to 4 units14.7%
5 to 19 units9.6%
20 or more units14.8%
Mobile home6%
Boat, RV or van0.6%
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$957,004as of 2026-07
Typical home value, 1 yeardown 2%
Typical home value, 5 yearsup 26.7%
Typical home value, 10 yearsup 72%
Typical asking rent$3,385as of 2026-07
Typical asking rent, 1 yearup 2.5%
Typical home value since 2000
201620212026$1,031,659$556,280

$556,280 in 2016 to $957,004 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.7%
Bachelor's degree or higher37.8%
High school diploma or higher92%
Works from home8.9%
Drives to work alone61.9%
Takes public transport0.1%
Commutes 45 minutes or more1.9%
Health

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

Obesity26.5% 6.9 pts below the national average of 33.4%
Diagnosed diabetes12% same as the national average of 12%
Currently smokes12.8% same as the national average of 13.2%
High blood pressure34.8% 0.7 pts above the national average of 34.1%
Fair or poor general health18.1% 2.2 pts below the national average of 20.3%
No health insurance (18–64)14% 2.7 pts above the national average of 11.3%
Depression16.7% 5.2 pts below the national average of 21.9%
No leisure-time physical activity23.2% 2.2 pts below the national average of 25.4%
Arthritis24.6% 0.5 pts below the national average of 25.1%
Binge drinking17.8% 1.8 pts above the national average of 16%
Taking blood pressure medication77% 2.3 pts above the national average of 74.7%
Cancer (non-skin)8.7% 1 pts above the national average of 7.7%
Current asthma9.2% 1.2 pts below the national average of 10.4%
Coronary heart disease6.6% same as the national average of 6.2%
Routine check-up in past year77.3% 0.6 pts above the national average of 76.7%
Cholesterol screening87.5% 1.6 pts above the national average of 85.9%
Cognitive disability12.9% 1.9 pts below the national average of 14.8%
Colorectal screening66.1% 1.8 pts above the national average of 64.3%
COPD6.5% same as the national average of 6.6%
Visited a dentist59.9% 1.4 pts below the national average of 61.3%
Any disability28.4% 2.3 pts below the national average of 30.7%
Hearing disability6.8% same as the national average of 6.7%
High cholesterol38% 1.8 pts above the national average of 36.2%
Independent living disability7.1% 1.3 pts below the national average of 8.4%
Mammography use73.7% 2.2 pts below the national average of 75.9%
Poor mental health (14+ days)15.5% 1.3 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)13.6% same as the national average of 13.5%
Self-care disability3.6% same as the national average of 4%
Sleeps under 7 hours35.7% 0.7 pts below the national average of 36.4%
Stroke3.3% same as the national average of 3.4%
All natural teeth lost11.4% 1.6 pts below the national average of 13%
Vision disability5.1% 0.5 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments1,771
People employed16,542
Annual payroll$801,384,000
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 91.2% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 11 census tracts this ZIP code covers
Expected annual loss90.4 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 flooding98.9Very High at its worst in this ZIP code
Hurricane98.4Very High at its worst in this ZIP code
Lightning82.8Very High at its worst in this ZIP code
Landslide48.2Very Low at its worst in this ZIP code
Wildfire47.4Very Low at its worst in this ZIP code
Heat wave36.8Relatively Moderate at its worst in this ZIP code
Strong wind17.8Relatively Low at its worst in this ZIP code
Tornado16.3Very Low at its worst in this ZIP code
Cold wave15.8Very Low at its worst in this ZIP code
River flooding6.3Relatively Low at its worst in this ZIP code
Hail3.5Very Low at its worst in this ZIP code
Earthquake1.7Very 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$79,038$71,711$78,538
Income per person$56,199$41,055$43,289
Poverty rate10.8%12.6%12.4%
Median home value$766,400$325,000$303,400
Median gross rent$2,079$1,564$1,348
Homeownership48.3%67.3%65%
Bachelor's degree or higher37.8%33.2%35%
Unemployment rate2.7%4.8%5.2%
Works from home8.9%13.9%13.5%
Born outside the US22.1%21.4%13.9%
Median age44.442.638.7
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 W WFO, FL US0.7 km away
Rain in a year46 in

Average high and low by month

January74.7°F / 62.9°F2.01 in rain
February76.5°F / 64.3°F1.96 in rain
March78.8°F / 66.8°F1.41 in rain
April82.7°F / 70.9°F2.17 in rain
May85.6°F / 74°F3.71 in rain
June88°F / 76.8°F4.81 in rain
July89.8°F / 77.8°F4.48 in rain
August89.7°F / 78.5°F6.13 in rain
September88.3°F / 77°F8.24 in rain
October85.2°F / 74.6°F6.01 in rain
November80.6°F / 69.8°F3.28 in rain
December76.9°F / 66°F2.22 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 supermarket20% of this ZIP code's area
No vehicle and far from a supermarket7% of this ZIP code's area
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 vulnerability53more vulnerable than 53% of US census tracts
Socioeconomic status44more vulnerable than 44% of US census tracts
Household characteristics50more vulnerable than 50% of US census tracts
Racial and ethnic minority status55more vulnerable than 55% of US census tracts
Housing type and transport64more vulnerable than 64% of US census tracts
Walkability11.2 out of 20Above average
Nearby ZIP codes

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

33041 Key West, FL0 km away
33045 Key West, FL0 km away
33042 Summerland Key, FL30.1 km away
33043 Big Pine Key, FL44.6 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 area17.72 sq mi
Water area121.5 sq mi
Population density2,036 people per sq mi
Latitude, longitude24.5552, -81.7816

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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