The community of North Hutchinson Island in St. Lucie County, also known as North Beach of Hutchinson Island or North Fort Pierce Beach, is entirely unincorporated and shares the Fort Pierce, Florida 34949 Zip Code with the part of Hutchinson Island lying north of Blind Creek, which is just north of the St. Lucie Nuclear Power Plant. State Road A1A is the main north-side road on the island and is the only bridge link to the mainland of St. Lucie County. For most of its length, A1A is known as Atlantic Beach Boulevard.[2] The beaches to the north of the Fort Pierce Inlet jetty are some of the few accreting beaches on the east coast of Florida.