What is "rockton"

Population (2000): 5296
Housing Units (2000): 2008
Land area (2000): 3.517812 sq. miles (9.111090 sq. km)
Water area (2000): 0.181810 sq. miles (0.470887 sq. km)
Total area (2000): 3.699622 sq. miles (9.581977 sq. km)
FIPS code: 65156
Located within: Illinois (IL), FIPS 17
Location: 42.450753 N, 89.063844 W
ZIP Codes (1990): 61072
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords: