Marco Island is the largest of Florida's Ten Thousand Islands and sits at the southern end of Collier County, approximately 20 miles south of downtown Naples. The island market is heavily weighted toward waterfront — direct Gulf-front, bay-front, and canal-access properties — with the majority of the island's value tied to water access and boat dockage. The Marco Island real estate market tends to be more seasonal than Naples, with peak transaction activity from November through March. Buyers are primarily retirees and second-home buyers from the Northeast and Midwest, with a smaller but significant international buyer pool from Canada and Europe.