Monroe County, Florida ZIP codes
12 ZIP codes are in Monroe County, plus 2 that cross in from neighboring counties. It's part of the Key West-Key Largo, FL micro area.
- ZIP codes
- 12
- Population in these ZIPs
- 81,805
- Avg. median income
- $89,400population-weighted
- Cities & towns
- 10
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Monroe County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 33001 | Long Key | 250 | — | $903,500 |
| 33036 | Islamorada | 3,777 | $86,032 | $1,243,500 |
| 33037 | Key Largo | 14,770 | $86,533 | $1,094,000 |
| 33040 | Key West | 35,429 | $86,586 | $956,800 |
| 33041 PO Box | Key West | — | — | — |
| 33042 | Summerland Key | 6,441 | $103,041 | $1,034,200 |
| 33043 | Big Pine Key | 4,298 | $110,491 | $752,900 |
| 33045 PO Box | Key West | — | — | — |
| 33050 | Marathon | 10,561 | $94,898 | $836,100 |
| 33051 | Key Colony Beach | 511 | $94,231 | $885,800 |
| 33052 PO Box | Marathon Shores | — | — | — |
| 33070 | Tavernier | 5,768 | $75,436 | $903,800 |
ZIP codes partly in Monroe County
These ZIP codes are mostly in a neighboring county but cover part of Monroe County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 33034 | Homestead | Miami-Dade County | 23,823 | $47,170 | $381,800 |
| 34141 | Ochopee | Collier County | 169 | $106,591 | — |
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
Cities and towns in Monroe County
Nearby counties
Frequently asked questions
How many ZIP codes are in Monroe County, Florida?
12 ZIP codes are mainly in Monroe County, and 2 more ZIP codes from neighboring areas reach partly into it.
What cities are in Monroe County?
ZIP codes in Monroe County use the city names Big Pine Key, Islamorada, Key Colony Beach, Key Largo, Key West, Long Key, Marathon, Marathon Shores, Summerland Key and Tavernier.
What metro area is Monroe County in?
Monroe County is part of the Key West-Key Largo, FL micropolitan statistical area.