Wanaque () is a borough in Passaic County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 11,116, reflecting an increase of 850 (+8.3%) from the 10,266 counted in the 2000 Census, which had in turn increased by 555 (+5.7%) from the 9,711 counted in the 1990 Census.
Wanaque was incorporated as an independent borough on February 23, 1918, when Pompton Township was split up into three boroughs, along with Bloomingdale and Ringwood, and affirmed by a referendum held on March 22, 1918. The borough's name Wanaque (original pronunciation 'Wa Na Kee') is thought to have been derived from a Lenni Lenape Native American word meaning "land of sassafras".
According to the United States Census Bureau, the borough had a total area of 9.33 square miles (24.15 km2), including 8.07 square miles (20.89 km2) of land and 1.26 square miles (3.26 km2) of water (13.50%).
Unincorporated communities, localities and place names located partially or completely within the borough include Haskell, Lake Inez, Lake Washington, Meadow Brook Lake, Midvale, Ramapo Lake, Rotten Pond, Stephens Lake and Upper Midvale.
Both Wanaque (formerly Midvale) and Haskell have their own ZIP Codes and are served by separate post offices.
The borough borders the municipalities of Bloomingdale, Pompton Lakes and Ringwood in Passaic County; and Oakland in Bergen County.
The 2010 United States Census counted 11,116 people, 4,018 households, and 3,026 families in the borough. The population density was 1,391.2 per square mile (537.1/km2). There were 4,184 housing units at an average density of 523.7 per square mile (202.2/km2). The racial makeup was 87.48% (9,724) White, 3.07% (341) Black or African American, 0.40% (45) Native American, 4.65% (517) Asian, 0.01% (1) Pacific Islander, 2.25% (250) from other races, and 2.14% (238) from two or more races. Hispanic or Latino of any race were 9.67% (1,075) of the population.
Of the 4,018 households, 30.7% had children under the age of 18; 61.1% were married couples living together; 10.5% had a female householder with no husband present and 24.7% were non-families. Of all households, 20.0% were made up of individuals and 8.8% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.07.
20.6% of the population were under the age of 18, 6.9% from 18 to 24, 24.0% from 25 to 44, 30.2% from 45 to 64, and 18.2% who were 65 years of age or older.