Grassy Key, Florida is the northernmost island in a chain of islands collectively known as Marathon, Florida. The island or "key" as the islands are called in Florida hosts many mom n' pop type family resorts - oceanside and bayside, as well as many private residences, although the Key is sparsley populated in comparasion to the City of Marathon "proper" farther south. The Dolphin Research Center is also located there at mile marker 59. Marathon is a city on Marathon Key and Boot Key, islands in the Florida Keys, located in Monroe County, Florida. ... State nickname: Sunshine State Other U.S. States Capital Tallahassee Largest city Jacksonville Governor Jeb Bush (R) Official languages English Area 170,451 km² (22nd) - Land 137,374 km² - Water 30,486 km² (17. ... A resort is a place used for relaxation or recreation. ...
Key Biscayne is actually attached at the north end to the mainland, and is therefore not considered part of the Keys by some Floridians.
The city of Key West is the county seat of Monroe County, which covers mostly the Everglades on the mainland, and all of the islands from Key Largo south and west.
The Keys are in the subtropics between 24 and 25 degrees north latitude.