Morris County is a
county located in the
U.S. state of
New Jersey, about west of
New York City. According to the
2010 United States Census, the population was 492,276, up from the 470,212 at the
2000 Census, retaining its status as the tenth-most populous county in the state; since 2010, Morris County's population has increased by 1.5% to a Census-estimated 499,727 in 2014. The county is part of the
New York Metropolitan Area, and its
county seat is
Morristown. The most populous place was
Parsippany-Troy Hills Township, with 53,238 residents at the time of the 2010 Census, while
Rockaway Township, covered , the largest total area of any municipality.