Warm Mineral Springs is a census-designated place (CDP) in Sarasota County, Florida, United States. The population was 5,442 at the 2020 census, up from 5,061 at the 2010 census. It is part of the North Port–Bradenton–Sarasota, Florida Metropolitan Statistical Area.
Insider tip — Bring a mask and snorkel to admire the spectacular transparency of the upper layers and the underwater limestone formations. An early morning swim (right at opening) gives the calmest, clearest water. Combine it with the beaches of Siesta Key (30 km) and the waters of Myakka River State Park for alligator watching.