Passaic ( /pəseɪ.ɨk/ pə-say-ik or local /pəseɪk/ pə-sayk) is a city in Passaic County, New Jersey, United States. As of the 2010 United States Census, the city had a total population of 69,781, maintaining its status as the 15th largest municipality in New Jersey with an increase of 1,920 residents (2.8%) from the 2000 Census population of 67,861. Located north of Newark on the Passaic River, it was first settled in 1678 by Dutch traders, as Acquackanonk Township. The city and river draw their name from the Lenape word "pahsayèk" which has been variously attributed to mean "valley" or "place where the land splits."
The city originated from a Dutch settlement on the Passaic River established in 1679 which was called Acquackanonk. Industrial growth began in the 19th century, as Passaic became a textile and metalworking center. Passaic was formed within Acquackanonk Township on March 10, 1869, and was incorporated as an independent village on March 21, 1871. Passaic was chartered as a city on April 2, 1873.
The 1926 Passaic Textile Strike led by union organizer Albert Weisbord had 36,000 mil workers leave their jobs to oppose wage cuts demanded by the textile industry. The workers successfully fought to keep their wages unchanged but did not receive recognition of their union by the mill owners.