Mendham Township, New Jersey

Mendham Township, New Jersey
Ralston Historic District c.1970
Location of Mendham Township in Morris County highlighted in red (right). Inset map: Location of Morris County in New Jersey highlighted in orange (left).
Census Bureau map of Mendham Township, New Jersey
Mendham Township
Location in Morris County
Mendham Township
Location in New Jersey
Mendham Township
Location in the United States
Coordinates: 40°45′41″N 74°33′55″W / 40.761504°N 74.565167°W / 40.761504; -74.565167
Country United States
State New Jersey
CountyMorris
FormedMarch 29, 1749
IncorporatedFebruary 21, 1798
Government
  TypeTownship
  BodyTownship Committee
  MayorSarah Neibart (R, term ends December 31, 2025)
  AdministratorJason Gabloff
  Municipal clerkKaren Bellamy
Area
  Total
18.01 sq mi (46.65 km2)
  Land17.78 sq mi (46.06 km2)
  Water0.23 sq mi (0.59 km2)  1.27%
  Rank158th of 565 in state
12th of 39 in county
Elevation
492 ft (150 m)
Population
 (2020)
  Total
6,016
  Estimate 
(2023)
5,989
  Rank346th of 565 in state
29th of 39 in county
  Density338.3/sq mi (130.6/km2)
   Rank468th of 565 in state
37th of 39 in county
Economics
  Median income$240,962 (± $21,849) (2018-2022)
Time zoneUTC−05:00 (Eastern (EST))
  Summer (DST)UTC−04:00 (Eastern (EDT))
ZIP Code
07945 – Mendham
07869 – Randolph
07926 – Brookside
07931 – Far Hills
07960 – Morristown
Area code(s)908, 973
FIPS code3402745360
GNIS feature ID0882200
Websitewww.mendhamtownship.org

Mendham Township is a township in southwestern Morris County, in the U.S. state of New Jersey, located more than 30 miles (48 km) due west of New York City. As of the 2020 United States census, the township's population was 6,016, an increase of 147 (+2.5%) from the 2010 census count of 5,869, which in turn reflected an increase of 469 (+8.7%) from the 5,400 counted in the 2000 census.

Located on the northern end of the Somerset Hills, Mendham Township is situated in the Raritan Valley region within the New York Metropolitan area. The township may be named for Mendham, Suffolk, England, or it may derive from the Native American word mendom (meaning "raspberry") or for an Earl of Mendham.

The long-established hamlets of Brookside and Ralston are located within Mendham, and both are listed on the National Register of Historic Places.

Along with Mendham Borough, the Mendhams have been described by The New York Times as "both affluent". The township has been one of the highest-income small municipalities in the United States. Based on data from the 2012-2016 American Community Survey, NJ.com ranked the township as having the third-highest income in the state, with a median household income of $176,875. Based on data from the ACS for 2014–2018, Mendham Township ranked fifth in the state with a median household income of $185,882. Per capita income, in comparison, was $131,795 as of the 2020 United States Census.

In 2010, Forbes.com listed Mendham as 224th in its listing of "America's Most Expensive ZIP Codes", with a median home price of $1,006,491.