Totowa is a borough in Passaic County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 11,065, an increase of 261 from the 2010 census count of 10,804, which in turn reflected an increase of 912 from the 9,892 counted in the 2000 census. Totowa was formed as a borough by an act of the New Jersey Legislature on March 15, 1898, from portions of Wayne Township and the now-defunct Manchester Township.