Key West is a city and an island of the same name near the southernmost tip of the Florida Keys in Monroe County, Florida, United States. The city encompasses the namesake island, the part of Stock Island north of US-1, Sigsbee Park, Fleming Key, and Sunset Key. Nearby Key Haven, the part of Stock Island south of US-1 and Wisteria Island, better known as Christmas Tree Island, are in unincorporated Monroe County. Both Fleming Key and Sigsbee Park are part of the NAS Key West and are inaccessible by civilians. Key West apartments for rent comparison page shows most up to date rent information on Key West apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.