Adams -- U.S. County in Indiana Population (2000): 33625 Housing Units (2000): 12404 Land area (2000): 339.359923 sq. miles (878.938129 sq. km) Water area (2000): 0.573550 sq. miles (1.485488 sq. km) Total area (2000): 339.933473 sq. miles (880.423617 sq. km) Located within: Indiana (IN), FIPS 18 Location: 40.744555 N, 84.940506 W Headwords: Adams Adams, IN Adams County Adams County, IN