Door -- U.S. County in Wisconsin Population (2000): 27961 Housing Units (2000): 19587 Land area (2000): 482.718703 sq. miles (1250.235648 sq. km) Water area (2000): 1887.109352 sq. miles (4887.590577 sq. km) Total area (2000): 2369.828055 sq. miles (6137.826225 sq. km) Located within: Wisconsin (WI), FIPS 55 Location: 44.966330 N, 87.290784 W Headwords: Door Door, WI Door County Door County, WI