Per capita income
Mendham Township was ranked in 2000 as the 17th highest-income community in the state of New Jersey based on per capita income, after having been ranked tenth a decade earlier. In 2000, the township's median household income ranked forth in the state and second highest in Morris County behind Mountain Lakes. Per capita income increased by 30.4% from the previous census, with income growth ranked 493rd among the state's 566 municipalities.