Orange Park & Fleming Island Two of the fastest-growing areas on the First Coast are the Clay County communities of Orange Park and Fleming Island. Both offer a wide range of home styles to meet your needs. Whether you are searching for a golf course community or a gated community, this suburban enclave offers a laid-back lifestyle with a touch of city living. Bustling Fleming Island, south of Orange Park on U.S. Highway 17, is quickly becoming known for its wide array of restaurants and shopping choices. On Fleming Island, you’ll find such planned communities as Eagle Harbor and Fleming Island Plantation and the gated communities of Pace Island and Margaret’s Walk, which offer great amenities and family atmosphere.