Homosassa Springs, FLORIDA - Gator Lagoon - "No Swimming" - 1976: Homosassa Springs is an unincorporated community and census-designated place (CDP) in Citrus County, Florida, United States. The population was 13,791 at the 2010 census Homosassa Springs is the principal city of the Homosassa Springs, Florida, Metropolitan Statistical Area. The name derives from the warm spring located in Homosassa Springs Wildlife State Park that attracts manatees to the area. This Photochromatic postcard, mailed in 1976, is in good condition. Florida Natural Color. Miami, Fla. FG 175 No. 94060.Size 3 1/2 x 5 1/2