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ZIP code 33040: Key West, FL

33040 is a ZIP code in Key West, Florida, mainly in Monroe County, part of the Key West-Key Largo, FL micro area. About 35,429 people live here.

Population
35,429
Median household income
$86,586
Typical home value
$956,800+0.1% in 12 months
Median rent
$2,167gross, per month
Median age
43.8
Homeowners
50.2%of occupied homes
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Shaded: ZIP code 33040's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 33040 details

CityKey West
StateFlorida
CountyMonroe County
Metro areaKey West-Key Largo, FL
Time zoneEastern Time (UTC−5), observes daylight saving time
TypeStandard (delivery area)
Land area17.7 sq mi, plus 121.5 sq mi of water
Population density1,999 people per sq mi
Bachelor's degree or higher38.2% of adults 25+
Average commute15.8 minutes
Center coordinates24.54461, -81.92174

Median rent in 33040 by bedrooms

SizeMedian gross rent
Studio$1,260/mo
1 bedroom$2,057/mo
2 bedrooms$2,214/mo
3 bedrooms$2,730/mo
4 bedrooms$2,547/mo

Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.

ZIP codes near 33040

ZIP codeCityDistancePopulation
33045Key West, FL8.8 mi—
33041Key West, FL8.8 mi—
33042Summerland Key, FL27.6 mi6,441
33043Big Pine Key, FL42.4 mi4,298
33052Marathon Shores, FL55.3 mi—
33051Key Colony Beach, FL57.9 mi511
33050Marathon, FL60.4 mi10,561
33001Long Key, FL73.1 mi250

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Buying a home in 33040?

A typical home in ZIP code 33040 is worth about $956,800 (Zillow Home Value Index). The median household here earns $86,586 a year. See what buying here would cost per month, with Florida average taxes and insurance filled in.

Monthly payment for a $956,800 homeWhat can a $86,586 income afford?Rental property numbers

About ZIP code 33040

What city is ZIP code 33040?

ZIP code 33040 is in Key West, FL, in Monroe County.

What county is ZIP code 33040 in?

33040 is mainly in Monroe County, Florida.

What is the population of ZIP code 33040?

About 35,429 people live in ZIP code 33040, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 33040 in?

33040 is in Eastern Time (UTC−5). It observes daylight saving time.

What other ZIP codes does Key West have?

Key West, FL also uses 33041 and 33045.