Lewis -- U.S. County in Washington Population (2000): 68600 Housing Units (2000): 29585 Land area (2000): 2407.637208 sq. miles (6235.751476 sq. km) Water area (2000): 28.627642 sq. miles (74.145249 sq. km) Total area (2000): 2436.264850 sq. miles (6309.896725 sq. km) Located within: Washington (WA), FIPS 53 Location: 46.595802 N, 122.676792 W Headwords: Lewis Lewis, WA Lewis County Lewis County, WA