East Orange is a city in Essex County, in the U.S. state of New Jersey. As of the 2020 United States census, the city's population was 69,612, an increase of 5,342 from the 2010 census count of 64,270, which in turn reflected a decline of 5,554 from the 69,824 counted in the 2000 census. The city was the state's 17th most populous municipality in 2020, after having been ranked 20th in 2010 and 14th statewide in 2000.