Grassy Key ZIP code overview
Grassy Key is located in Monroe County and is part of Florida's Florida Keys region. The U.S. Postal Service assigns the following ZIP code to addresses within or directly adjacent to Grassy Key:
Grassy Key ZIP codes
ZIP code assignments are made by the U.S. Postal Service for mail-delivery purposes and do not always align with municipal boundaries. Some of these ZIPs may also cover unincorporated areas of Monroe County.
Notable Grassy Key neighborhoods and landmarks
Grassy Key contains a mix of neighborhoods, communities, and landmarks. The following are commonly referenced by residents, agents, and buyers when describing the area:
Grassy Key real estate market snapshot
The Grassy Key market reflects the broader characteristics of Florida Keys — proximity to employment centers, lifestyle amenities, and lifestyle migration into Florida. For up-to-date listings, active comparables, and a localized opinion of value on a specific property, a BKRS licensed real estate professional is the best source. Browse BKRS private listings, the full Florida ZIP search, or our all-67-counties directory for additional context.
Frequently asked questions about Grassy Key
What ZIP code is Grassy Key, Florida?
Grassy Key, Florida is served by ZIP code 33050. ZIP codes are assigned by the U.S. Postal Service and may also cover unincorporated areas of Monroe County.
What county is Grassy Key in?
Grassy Key is located in Monroe County, Florida — part of the Florida Keys region.
What are the main neighborhoods in Grassy Key?
Commonly referenced neighborhoods and landmarks in Grassy Key include Dolphin Research Center, Grassy Key, Marathon border, US-1 corridor. Grassy Key is a Middle Keys island just east of Marathon — Dolphin Research Center, quiet residential character, and proximity to Marathon.
What is the typical home price range in Grassy Key?
Typical home values in Grassy Key range from approximately $500K – $2.5M, based on observed listing and sale data. Individual properties vary based on lot, condition, waterfront access, and neighborhood — this range is illustrative only and not an appraisal.
How many ZIP codes does Grassy Key have?
Grassy Key has 1 primary ZIP code assigned by the U.S. Postal Service: 33050.
About Monroe County
Monroe County is part of Florida's Florida Keys region. Grassy Key is one of several markets BKRS covers in this county. Use the related-cities panel to explore nearby markets, browse Monroe County ZIP codes, or use the full Florida ZIP code search to filter all BKRS-covered markets by name, county, or 5-digit ZIP.