Manasquan (, man-ə-SKWAHN) is a borough in Monmouth County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 5,897, reflecting a decline of 413 (-6.5%) from the 6,310 counted in the 2000 Census, which had in turn increased by 941 (+17.5%) from the 5,369 counted in the 1990 Census.
The borough's name is of Lenape origin, variously described as deriving from "Man-A-Squaw-Han" meaning "stream of the island of squaws", "an island with enclosure for squans", "island door" or "point" / "top". Manasquan, Maniquan, Mannisquan, Manasquam, Squan, and Squan Village are variations on the original pronunciation and spelling.
Manasquan was formed as a borough by an act of the New Jersey Legislature on December 30, 1887, from portions of Wall Township, based on the results of a referendum held the previous day.
New Jersey Monthly magazine ranked Manasquan as its 22nd best place to live in its 2008 rankings of the "Best Places To Live" in New Jersey.
According to the United States Census Bureau, the borough had a total area of 2.530 square miles (6.553 km2), including 1.383 square miles (3.583 km2) of land and 1.147 square miles (2.970 km2) of water (45.33%).
The borough borders the municipalities of Brielle, Sea Girt and Wall Township in Monmouth County; and Point Pleasant Beach in Ocean County.
The 2010 United States Census counted 5,897 people, 2,374 households, and 1,550.222 families in the borough. The population density was 4,263.0 per square mile (1,646.0/km2). There were 3,500 housing units at an average density of 2,530.2 per square mile (976.9/km2). The racial makeup was 96.07% (5,665) White, 0.31% (18) Black or African American, 0.02% (1) Native American, 0.61% (36) Asian, 0.02% (1) Pacific Islander, 1.93% (114) from other races, and 1.05% (62) from two or more races. Hispanic or Latino of any race were 7.02% (414) of the population.
Of the 2,374 households, 27.3% had children under the age of 18; 52.5% were married couples living together; 9.1% had a female householder with no husband present and 34.7% were non-families. Of all households, 28.9% were made up of individuals and 10.7% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 3.10.
23.3% of the population were under the age of 18, 6.4% from 18 to 24, 22.6% from 25 to 44, 31.3% from 45 to 64, and 16.3% who were 65 years of age or older.