13621 -- U.S. ZIP code Municipality (1990): CHASE MILLS, New York All ZIPs for this municipality (1990): 13621 Population (2000): 699 Housing Units (2000): 366 Land area (2000): 29.567090 sq. miles (76.578409 sq. km) Water area (2000): 0.079009 sq. miles (0.204632 sq. km) Total area (2000): 29.646099 sq. miles (76.783041 sq. km) Located within: New York (NY) Location: 44.850439 N, 75.069151 W