Harlan -- U.S. County in Nebraska Population (2000): 3786 Housing Units (2000): 2327 Land area (2000): 552.783216 sq. miles (1431.701895 sq. km) Water area (2000): 21.398388 sq. miles (55.421567 sq. km) Total area (2000): 574.181604 sq. miles (1487.123462 sq. km) Located within: Nebraska (NE), FIPS 31 Location: 40.154431 N, 99.414477 W Headwords: Harlan Harlan, NE Harlan County Harlan County, NE