Connected by bridges to Seattle and Bellevue, Mercer Island is recognized as a top 50 suburb in the United States. Its prime location provides access to over 475 acres of parks and open spaces, including three public beaches and more than 50 miles of hiking trails. The island's name, inspired by the Mercer brothers, particularly Thomas Mercer, dates back to 1860. The Mercers were among the earliest known inhabitants of Seattle, adding historical significance to the island's identity.