Columbus is an unincorporated community located within Mansfield Township in Burlington County, in the U.S. state of New Jersey. The area is served as United States Postal Service ZIP Code 08022. Most of Mansfield Township's governmental offices are located in and around Columbus. It is also the main business district in the township with many businesses lining the main roads in the area. It is located at the junction of County Route 543 and U.S. Route 206 which is a major highway that heads north and south. US 206 originally passed through the center of Columbus on Atlantic Avenue and New York Avenue until it was moved to a short four-lane bypass of downtown in the late 1950s/early 1960s. The old surface route became state-maintained New Jersey Route 170 but became a county-maintained road in 1986.

Mansfield Township is a township in Burlington County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 8,897, an increase of 353 (+4.1%) from the 2010 census count of 8,544, which in turn reflected an increase of 3,454 (+67.9%) from the 5,090 counted in the 2000 census. The township, and all of Burlington County, is a part of the Philadelphia-Reading-Camden combined statistical area and the Delaware Valley.