Fair Haven was incorporated as a borough by an Act of the New Jersey Legislature on March 28, 1912, from portions of Shrewsbury Township, based on the results of a referendum held on April 23, 1912. Portions of the borough were exchanged with Red Bank on June 17, 1957.
There were 1,998 households out of which 47.6% had children under the age of 18 living with them, 72.1% were married couples living together, 9.3% had a female householder with no husband present, and 17.0% were non-families. 15.2% of all households were made up of individuals and 7.3% had someone living alone who was 65 years of age or older. The average household size was 2.97 and the average family size was 3.33.
In the borough the population was spread out with 33.0% under the age of 18, 4.0% from 18 to 24, 28.5% from 25 to 44, 24.1% from 45 to 64, and 10.3% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 94.0 males. For every 100 females age 18 and over, there were 87.9 males.
The median income for a household in the borough was $97,220, and the median income for a family was $109,760. Males had a median income of $83,657 versus $51,389 for females. The per capita income for the borough was $44,018. About 1.6% of families and 2.3% of the population were below the poverty line, including 2.1% of those under age 18 and 4.6% of those age 65 or over.
The Mayor of the Borough of Fair Haven is Michael Halfacre, whose term of office ends on December 31, 2010. Members of the Fair Haven Borough Council are Council President Thomas J. Gilmour (2009), Jerome A. Koch (2008), Jon Peters (2007), Christopher Rinn (2009), John Lehnert (2010) and James P. Banahan (2010).
Fair Haven is a participating municipality in an initiative to study regionalizing their municipal police force with one or more municipalities. The borough received a grant from the New Jersey Department of Community Affairs in the amount of $40,950 along with the Boroughs of Rumson, Little Silver, Oceanport and Shrewsbury to hire professional consultants to conduct the study on their behalf. A report is due before the end of 2007.
Students in public school for grades 9-12 attend Rumson-Fair Haven Regional High School, together with students from Rumson. The high school is located in Rumson and had an enrollment of 945 students in the 2005-06 school year.