10520 -- U.S. ZIP code Municipality (1990): CROTON ON HUDSON, New York All ZIPs for this municipality (1990): 10520 Population (2000): 12590 Housing Units (2000): 5124 Land area (2000): 13.618240 sq. miles (35.271079 sq. km) Water area (2000): 0.197385 sq. miles (0.511226 sq. km) Total area (2000): 13.815625 sq. miles (35.782305 sq. km) Located within: New York (NY) Location: 41.215541 N, 73.885430 W