Pompton Township is a defunct township in Passaic County, New Jersey, United States, that existed from 1797 until it was dissolved in 1918.
The township was originally formed on April 10, 1797, from portions of Saddle River Township and Franklin Township in Bergen County, and incorporated on February 21, 1798, as one of the state's initial group of 104 townships.
On March 10, 1834, West Milford was created from portions of the township.
When Passaic County, New Jersey was established on February 7, 1837, it included Pompton Township.
The borough of Pompton Lakes, New Jersey was formed on February 26, 1895, during the peak of the "Boroughitis" phenomenon, as the second municipality to split from the township. The township was divided on February 23, 1918, into three boroughs: Bloomingdale, Ringwood and Wanaque, with the remaining portion passing to Pompton Lakes. This ended the existence of the township.
According to news accounts at the time of the split, local leaders from the various communities felt that the population growth within the township was a hindrance to the ability of the Township Committee to govern. Citizens of Haskell (now part of Wanaque) had begun to discuss the formation of their own borough and this prompted citizens in the other sections to follow their lead. A significant portion of the land was sparsely populated and the split off of one community would leave a larger tax burden on those that remained.