West Milford is a township located in Passaic County, New Jersey, in the United States. It is characterized by its significant size, as it is the largest township in the county by total area, covering 80.32 square miles (208.0 km2). This landmass accounts for more than 40% of the total county area.
According to the 2020 United States census, the township had a population of 24,862. This figure represents a decrease from the 25,850 residents recorded in 2010 and the 26,410 residents counted in 2000.