Pinellas County is approximately 38 miles long and 15 miles wide at its broadest point, for a total of 608 square miles. The land area is about 274 square miles, while the water area is larger with 334 square miles. Actually it is the second smallest county in Florida by land area-Union County being the smallest. Because of its high population, the land has been mostly built out, with very little land available for development.. It is a peninsula bounded on the west by the Gulf of Mexico, and on the south and east by Tampa Bay.
Elevation & Geology – The elevation ranges from sea level to its highest natural point of 110 feet, which is near the intersection of SR 580 and Countryside Blvd. in Clearwater. The land is underlain by a series of limestone formations – the Hawthorne limestone and the Tampa limestone. The limestone is porous and stores a large portion of water.
Barrier Islands – The 35 miles of beaches and dunes make up the county’s 11 barrier islands, which provide habitat for coastal species, serve as critical storm protection for the inland communities, and most notably for providing the basis of the area’s thriving tourism. Between the barrier islands and the mainland are several bodies of water through which flow the famous Intracoastal Waterway. These islands are Anclote Key, Howard Park, Honeymoon Island, Caladesi Island, Clearwater Beach, Sand Key (the longest), Treasure Island, St. Pete Beach, Shell Key, Tierra Verde and Mullet Key (home to Ft. De Soto and the southernmost point).
Parks and Preserves – The state protected parks are Honeymoon Island, Caladesi Island and Anclote Key Preserve. There are a number of county parks and preserves. Among the most popular would be Anderson and Howard in Tarpon Springs, John Chestnut in Palm Harbor, Sawgrass Lake in St. Petersburg, Walsingham in Largo, Lake Seminole in Seminole and Ft. De Soto in Tierra Verde.
Beaches – The wonderful gulf coast supplies the beautiful peninsula with many beautiful beaches. Howard Park in Tarpon, Honeymoon in Dunedin, Clearwater, Sand Key, Indian Rocks, Indian Shores, Redington, Madeira, and St. Pete.
To learn more about Pinellas County, go to the website About Pinellas County.