Fair Haven is a borough in Monmouth County, New Jersey, along the Navesink River and is part of the New York Metropolitan Area. Fair Haven is located on the Rumson peninsula and is bordered by Red Bank and Little Silver to the west. As of the 2010 United States Census, the borough's population was 6,121, reflecting an increase of 184 from the 5,937 counted in the 2000 Census, which had in turn increased by 667 from the 5,270 counted in the 1990 Census.Fair Haven was incorporated as a borough by an act of the New Jersey Legislature on March 28, 1912, from portions of Shrewsbury Township, subject to the results of a referendum held on April 23, 1912. Portions of the borough were exchanged with Red Bank on June 17, 1957.