The Borough of Neptune City was incorporated on October 4, 1881. The boundaries included all of what is now Avon-by-the-Sea, the southern portion of Bradley Beach and the present land area known as "Neptune City." On March 23, 1900 a bill approved in the State Legislature created the Borough of Avon-by-the-Sea. Seven years later, on January 28, 1907, the eastern portion of Neptune City was annexed to the Borough of Bradley Beach.