County · GEOID 12087
Monroe County, FL ZIP codes
11 ZIP/ZCTAs intersecting this county.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Monroe County (GEOID 12087). Methodology
Combined population of ZIP/ZCTAs intersecting this county: 104,095 (11 ZIPs).
Combined population of ZIP/ZCTAs intersecting this county. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census county ACS headline above. Methodology
Monroe County, FL ZIP code map

ZIP/ZCTA overlap with Monroe County
Population overlap
Share of each ZIP/ZCTA’s population located within Monroe County, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- 33001100.0%
Directory county
- 330340.1%
- 33036100.0%
Directory county
- 33037100.0%
Directory county
- 33040100.0%
Directory county
- 33042100.0%
Directory county
- 33043100.0%
Directory county
- 33050100.0%
Directory county
- 33051100.0%
Directory county
- 33070100.0%
Directory county
- 3414138.2%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Monroe County
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 33001 | Long Key | Monroe County | 254 | $60,750 |
| 33034 | Homestead | Miami-Dade County | 22,129 | $46,404 |
| 33036 | Islamorada | Monroe County | 3,632 | $88,214 |
| 33037 | Key Largo | Monroe County | 13,674 | $80,911 |
| 33040 | Key West | Monroe County | 36,091 | $79,038 |
| 33042 | Summerland Key | Monroe County | 6,781 | $101,625 |
| 33043 | Big Pine Key | Monroe County | 4,632 | $92,955 |
| 33050 | Marathon | Monroe County | 10,586 | $83,243 |
| 33051 | Key Colony Beach | Monroe County | 525 | $94,531 |
| 33070 | Tavernier | Monroe County | 5,614 | $77,228 |
| 34141 | Ochopee | Collier County | 177 | $103,233 |
USPS associates these ZIPs with Monroe County
These codes list Monroe County 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 | — |
| 33052 | Marathon Shores | Monroe County | 366 | — |