Eastampton Township is a township in Burlington County, New Jersey, United States. As of the 2010 United States Census, the township's population was 6,069, reflecting a decline of 133 (-2.1%) from the 6,202 counted in the 2000 Census, which had in turn increased by 1,240 (+25.0%) from the 4,962 counted in the 1990 Census.
Eastampton Township was incorporated as a township by an act of the New Jersey Legislature on February 11, 1880, from portions of Westampton Township. Portions of both Lumberton Township and Southampton Township were annexed in 1882.
Eastampton is the location of Smithville, an industrial community created by Hezekiah Bradley Smith for his machine company, which produced the American Star Bicycle. It is now a county park.
According to the United States Census Bureau, the township had a total area of 5.82 square miles (15.06 km2), including 5.73 square miles (14.84 km2) of land and 0.09 square miles (0.22 km2) of water (1.48%).
The township borders the Burlington County municipalities of Lumberton Township, Mount Holly Township, Pemberton Township, Southampton Township, Springfield Township and Westampton Township.
Unincorporated communities, localities and place names located partially or completely within the township include Smithville and Turpentine.
The 2010 United States Census counted 6,069 people, 2,281 households, and 1,640 families in the township. The population density was 1,055.6 inhabitants per square mile (407.6/km2). There were 2,380 housing units at an average density of 414.0 per square mile (159.8/km2). The racial makeup was 73.11% (4,437) White, 16.97% (1,030) Black or African American, 0.35% (21) Native American, 4.48% (272) Asian, 0.07% (4) Pacific Islander, 1.65% (100) from other races, and 3.38% (205) from two or more races. Hispanic or Latino of any race were 8.29% (503) of the population.
Of the 2,281 households, 33.5% had children under the age of 18; 54.8% were married couples living together; 12.9% had a female householder with no husband present and 28.1% were non-families. Of all households, 22.9% were made up of individuals and 5.4% 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 3.15.
24.5% of the population were under the age of 18, 10.1% from 18 to 24, 25.3% from 25 to 44, 31.3% from 45 to 64, and 8.7% who were 65 years of age or older.