10977 -- U.S. ZIP code Municipality (1990): CHESTNUT RIDGE, New York All ZIPs for this municipality (1990): 10977 Population (2000): 49211 Housing Units (2000): 14057 Land area (2000): 11.748058 sq. miles (30.427328 sq. km) Water area (2000): 0.020433 sq. miles (0.052922 sq. km) Total area (2000): 11.768491 sq. miles (30.480250 sq. km) Located within: New York (NY) Location: 41.116795 N, 74.045045 W