Wallington is a borough in Bergen County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 11,335, reflecting a decline of 248 (-2.1%) from the 11,583 counted in the 2000 Census, which had in turn increased by 755 (+7.0%) from the 10,828 counted in the 1990 Census.
Wallington was created as a borough on January 2, 1895, based on a referendum held on December 31, 1894, from area taken from Bergen Township and Saddle River Township. The borough was formed during the "Boroughitis" phenomenon then sweeping through New Jersey, in which 26 boroughs were formed in Bergen County alone in 1894, with Wallington the last of the 26 to be formed by an 1894 referendum. Sections of Wallington were ceded to Garfield in 1898. The borough is said to have been named for Walling Van Winkle (1650–1725), who built a home in the future borough.
According to the United States Census Bureau, the borough had a total area of 1.034 square miles (2.679 km2), including 0.983 square miles (2.546 km2) of land and 0.051 square miles (0.132 km2) of water (4.93%).
The borough borders Carlstadt, East Rutherford, Garfield, South Hackensack and Wood-Ridge in Bergen County, and the city of Passaic in Passaic County across the Passaic River.
The borough is located approximately 15 miles (24 km) northwest of Midtown Manhattan.
The borough is one of 41 municipalities statewide where a majority of residents do not speak English as their primary language. Based on data from the United States Census Bureau's 2012-2016 American Community Survey data, Wallington had 62.8% of residents not speaking English as their dominant language, the 13th highest perecentage in the state.
The 2010 United States Census counted 11,335 people, 4,637 households, and 2,990.865 families in the borough. The population density was 11,528.6 per square mile (4,451.2/km2). There were 4,946 housing units at an average density of 5,030.5 per square mile (1,942.3/km2). The racial makeup was 85.48% (9,689) White, 3.23% (366) Black or African American, 0.16% (18) Native American, 5.57% (631) Asian, 0.00% (0) Pacific Islander, 3.86% (438) from other races, and 1.70% (193) from two or more races.