ZIP code · Key Largo · Florida · United States

ZIP code 33037 — Key Largo

ZIP code 33037 serves Key Largo, Florida.

Postal code
33037
Single source Value from one source, not cross-checked.
City
Key Largo
County
Monroe FIPS 12087
State
Florida
Country
United States
Coordinates
25.0865, -80.4473 — precision precise (locality)
View on OpenStreetMap
Population
13,674 (ZCTA, ACS 5-year)
Population density
415 / sq mi
Land area
32.9 sq mi (85.2 km²) (ZCTA, ACS 5-year)
Median household income
$80,911
Per-capita income
$62,068
Median age
54.2
Households
5,806
Housing units
10,494
Median home value
$660,700
Median gross rent
$1,896 / month
Congressional district
FL-28 (119th Congress)
USDA hardiness zone
11a (40 to 45 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/New_York (UTC−5 / UTC−4 DST)

Climate — monthly normals

Warmest month Aug (avg high 90°F), coldest Jan (avg low 64°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F757779838688899088858177
Avg low °F646567727578807978757067
Precip in2.12.21.61.93.85.64.05.68.05.62.42.1

NOAA 1991–2020 climate normals from the nearest station: TAVERNIER (7.2 mi) · NOAA NCEI

Places in ZIP 33037

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page