Elmer is a borough in Salem County in the U.S. state of New Jersey. As of the 2010 United States Census, the borough's population was 1,395, reflecting an increase of 11 (+0.8%) from the 1,384 counted in the 2000 Census, which had in turn declined by 187 (-11.9%) from the 1,571 counted in the 1990 Census. It is the home of the annual Appel Farm Arts and Music Festival, which celebrated its 23rd year in 2012.
Elmer was incorporated as a borough by an act of the New Jersey Legislature on January 28, 1893, from portions of Pittsgrove Township and Upper Pittsgrove Township, based on the results of a referendum held four days earlier. The borough was named for Lucius Elmer a former judge who helped obtain a post office for the community during his service as Congressman.
Elmer is a dry town where alcohol cannot be sold.
According to the United States Census Bureau, the borough had a total area of 0.91 square miles (2.37 km2), including 0.89 square miles (2.31 km2) of land and 0.02 square miles (0.05 km2) of water (2.20%).
The borough borders Pittsgrove Township and Upper Pittsgrove Township.
It is located on U.S. Route 40.
The 2010 United States Census counted 1,395 people, 536 households, and 391 families in the borough. The population density was 1,612.3 inhabitants per square mile (622.5/km2). There were 577 housing units at an average density of 666.9 per square mile (257.5/km2). The racial makeup was 94.05% (1,312) White, 2.15% (30) Black or African American, 0.57% (8) Native American, 0.79% (11) Asian, 0.00% (0) Pacific Islander, 1.29% (18) from other races, and 1.15% (16) from two or more races. Hispanic or Latino of any race were 3.15% (44) of the population.
Of the 536 households, 31.3% had children under the age of 18; 51.5% were married couples living together; 13.6% had a female householder with no husband present and 27.1% were non-families. Of all households, 22.2% were made up of individuals and 9.3% had someone living alone who was 65 years of age or older.