Washington Township, Warren County, New Jersey

Washington Township, New Jersey
Port Colden Manor in Port Colden Historic District
Census Bureau map of Washington Township, Warren County, New Jersey
Washington Township
Location in Warren County
Washington Township
Location in New Jersey
Washington Township
Location in the United States
Coordinates: 40°43′48″N 74°57′32″W / 40.729957°N 74.958975°W / 40.729957; -74.958975
Country United States
State New Jersey
County Warren
IncorporatedApril 9, 1849
Named afterGeorge Washington
Government
  TypeTownship
  BodyTownship Committee
  MayorRobert J. Klingel (R, term ends December 31, 2023)
  AdministratorPeter H. deBoer Jr.
  Municipal clerkAnn Kilduff
Area
  Total
18.05 sq mi (46.75 km2)
  Land17.96 sq mi (46.52 km2)
  Water0.09 sq mi (0.23 km2)  0.49%
  Rank156th of 565 in state
12th of 22 in county
Elevation
456 ft (139 m)
Population
 (2020)
  Total
6,492
  Estimate 
(2024)
6,927
  Rank328th of 565 in state
6th of 22 in county
  Density361.5/sq mi (139.6/km2)
   Rank463rd of 565 in state
9th of 22 in county
Time zoneUTC−05:00 (Eastern (EST))
  Summer (DST)UTC−04:00 (Eastern (EDT))
ZIP Code
07882
Area code(s)908 exchanges: 689, 835
FIPS code3404177300
GNIS feature ID0882250
Websitewww.washington-twp-warren.org

Washington Township is a township in Warren County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 6,492, a decrease of 159 (−2.4%) from the 2010 census count of 6,651, which in turn reflected an increase of 403 (+6.5%) from the 6,248 counted in the 2000 census.

The township is one of six municipalities in New Jersey under the name Washington (one of which is a borough, five of which are townships). Washington Township, Warren County completely surrounds the borough of Washington. Mansfield Township, also in Warren County, borders both this municipality and another Washington Township in Morris County.

Washington Township was incorporated as a township by an act of the New Jersey Legislature on April 9, 1849, from portions of Mansfield Township. Portions of the township were taken on February 20, 1868, to create Washington Borough. The township was named for George Washington, one of more than ten communities statewide named for the first president. It is one of five municipalities in the state of New Jersey with the name "Washington Township". Another municipality, Washington Borough, is completely surrounded by Washington Township.