Washington Township, Morris County, New Jersey

Washington Township, New Jersey
Trimmer-Dufford Farmstead
Location in Morris County and the state of New Jersey.
Census Bureau map of Washington Township, Morris County, New Jersey
Washington Township
Location in Morris County
Washington Township
Location in New Jersey
Washington Township
Location in the United States
Coordinates: 40°47′05″N 74°47′52″W / 40.784654°N 74.79769°W / 40.784654; -74.79769
Country United States
State New Jersey
County Morris
IncorporatedApril 2, 1798
Named afterGeorge Washington
Government
  TypeTownship
  BodyTownship Committee
  MayorMichael Marino (R, term ends December 31, 2025)
  AdministratorCharles Daniel
  Township clerkDenean Probasco
Area
  Total
44.90 sq mi (116.28 km2)
  Land44.58 sq mi (115.47 km2)
  Water0.31 sq mi (0.81 km2)  0.70%
  Rank42nd of 565 in state
2nd of 39 in county
Elevation
988 ft (301 m)
Population
 (2020)
  Total
18,197
  Estimate 
(2023)
18,212
  Rank149th of 565 in state
11th of 39 in county
  Density408.2/sq mi (157.6/km2)
   Rank457th of 565 in state
36th of 39 in county
Time zoneUTC−05:00 (Eastern (EST))
  Summer (DST)UTC−04:00 (Eastern (EDT))
ZIP Code
07853 – Long Valley
Area code908
FIPS code3402777240
GNIS feature ID0882198
Websitewww.wtmorris.org

Washington Township is a township in southwestern Morris County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 18,197, a decrease of 336 (−1.8%) from the 2010 census count of 18,533, which in turn reflected an increase of 941 (+5.3%) from the 17,592 counted in the 2000 census.

The township is situated in the westernmost part of Morris County bordering both Hunterdon and Warren counties. It is located within the Raritan Valley region and is one of six municipalities (five of which are townships) in the state with the name "Washington". Washington Borough, located only 10 miles (16 km) away, is surrounded by another municipality that is also called Washington Township in Warren County.

The township has been ranked as one of the state's highest-income communities. Based on data from the American Community Survey (ACS) for 2014–2018, Washington Township residents had a median household income of $150,682, nearly 90% above the statewide median of $79,363. In the 2013–2017 ACS, Washington Township had a median household income of $140,445, ranking 45th in the state.