Northvale is a borough in Bergen County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 4,640, reflecting an increase of 180 (+4.0%) from the 4,460 counted in the 2000 Census, which had in turn declined by 103 (-2.3%) from the 4,563 counted in the 1990 Census.
The borough of Northvale was formed on March 15, 1916, from the remaining portions of Harrington Township, based on the results of a referendum held on April 4, 1916. With the creation of Northvale, Harrington Township was dissolved. Portions of Northvale were transferred to create the borough of Rockleigh, as of March 13, 1923. The borough's name derives from its location and topography.
According to the United States Census Bureau, the borough had a total area of 1.27 square miles (3.28 km2), including 1.27 square miles (3.28 km2) of land and <0.01 square miles (0.01 km2) of water (0.24%).
The borough borders Norwood, Old Tappan and Rockleigh in Bergen County; and Tappan (in the Town of Orangetown) in Rockland County, New York.
The 2010 United States census counted 4,640 people, 1,564 households, and 1,265 families in the borough. The population density was 3,582.3 per square mile (1,383.1/km2). There were 1,635 housing units at an average density of 1,262.3 per square mile (487.4/km2). The racial makeup was 71.94% (3,338) White, 1.06% (49) Black or African American, 0.19% (9) Native American, 24.01% (1,114) Asian, 0.02% (1) Pacific Islander, 1.14% (53) from other races, and 1.64% (76) from two or more races. Hispanic or Latino of any race were 8.15% (378) of the population. Korean Americans accounted for 16.3% of the population.
Of the 1,564 households, 38.7% had children under the age of 18; 67.8% were married couples living together; 10.0% had a female householder with no husband present and 19.1% were non-families.