ZIP CodesZIP codes in Monroe County, Florida
Monroe County, Florida has 12 ZIP codes in this list, from 33001 to 33070. They cover 10 places, among them Key West, Long Key, Islamorada and Key Largo.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 33001 | Long Key | 2.0 | 24.831, -80.805 |
| 33036 | Islamorada | 5.8 | 24.923, -80.630 |
| 33037 | Key Largo | 32.9 | 25.087, -80.447 |
| 33040 | Key West | 17.7 | 24.555, -81.782 |
| 33041 | Key West | no area | 24.555, -81.782 |
| 33042 | Summerland Key | 27.6 | 24.667, -81.510 |
| 33043 | Big Pine Key | 16.6 | 24.680, -81.362 |
| 33045 | Key West | no area | 24.555, -81.782 |
| 33050 | Marathon | 9.1 | 24.728, -81.039 |
| 33051 | Key Colony Beach | 0.4 | 24.723, -81.020 |
| 33052 | Marathon Shores | no area | 24.723, -81.063 |
| 33070 | Tavernier | 4.2 | 25.011, -80.522 |
The ZIP code areas of Monroe County add up to about 116 square miles of land (301 sq km) as the Census Bureau draws them. The largest is 33037 (Key Largo), with 32.9 square miles.
Places with more than one code here: Key West (3 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Long Key, FL 33001.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.