Tampico Township is located in Whiteside County in the U.S. state of Illinois. As of the 2010 census, its population was 1,148 and it contained 449 housing units.
According to the 2010 census, the township has a total area of 35.74 square miles (92.6 km2), all land.
- ^ a b "Population, Housing Units, Area, and Density: 2010 - County -- County Subdivision and Place -- 2010 Census Summary File 1". United States Census. Retrieved 2013-05-28.
Coordinates: 41°38′10″N 89°48′22″W / 41.636°N 89.806°W