Census place · GEOID 1236550 · Monroe County
Key West, FL ZIP codes
1 ZIP/ZCTA intersecting this Census place in Monroe County.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Key West (GEOID 1236550). Methodology
Combined population of ZIP/ZCTAs intersecting this place: 36,091 (1 ZIPs).
Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology
Map of Key West, FL

ZIP/ZCTA overlap with Key West
Population overlap
Share of each ZIP/ZCTA’s population located within Key West, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- 3304073.5%
USPS primary city
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Key West
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 33040 | Key West | Monroe County | 36,091 | $79,038 |
USPS associates these ZIPs with Key West
These codes list Key West as a primary or acceptable city. They are not used for the ACS headline.
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 33041 | Key West | Monroe County | 1,578 | — |
| 33045 | Key West | Monroe County | 1,333 | — |