Singac (pronounced SING-ack[11]) is an unincorporated community and census-designated place (CDP) located within Little Falls, in Passaic County, in the U.S. state of New Jersey.

New Jersey Route 23, known as the Newark-Pompton Turnpike or Pompton Avenue, runs north-south through the community.

[20] The 2010 United States census counted 3,618 people, 1,477 households, and 920 families in the CDP.

There were 1,545 housing units at an average density of 3,315.3 per square mile (1,280.0/km2).

Of all households, 31.5% were made up of individuals and 9.9% had someone living alone who was 65 years of age or older.