Zip Area Code

Monroe County, Florida

Monroe County, Florida, has 17 towns and 12 ZIP codes, in area code 305, with 645 as an overlay.

Towns in Monroe County, A to Z

TownZIP codesArea codes
Big Coppitt Keynearest33042305, 645, 786
Big Pine Key33043305, 645, 786
Cudjoe Keynearest33042305, 645, 786
Duck Keynearest33050305, 645, 786
Islamorada33036305, 645, 786
Islamorada, Village of Islandsnearest33070305, 645, 786
Key Colony Beach33051305, 645, 786
Key Largo33037305, 645, 786
Key West33040, 33041, 33045305, 645, 786
Laytonnearest33001305, 645, 786
Long Key33001305, 645, 786
Marathon33050305, 645, 786
Marathon Shores33052305, 645, 786
North Key Largonearest33037305, 645, 786
Stock Islandnearest33040305, 645, 786
Summerland Key33042305, 645, 786
Tavernier33070305, 645, 786

ZIP codes in Monroe County

Area codes in Monroe County

  • Area code 305

    In service since 1947. Shares its area with 645 and 786. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 645

    In service since August 4, 2023. Shares its area with 305 and 786. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Local numbers in area code 305

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