Harristown Township is located in Macon County, Illinois, USA. As of the 2010 census, its population was 1,921 and it contained 793 housing units.[2][3]
According to the 2010 census, the township has a total area of 28.29 square miles (73.3 km2), of which 28.1 square miles (73 km2) (or 99.33%) is land and 0.19 square miles (0.49 km2) (or 0.67%) is water.[2]
39°50′N 89°5′W / 39.833°N 89.083°W / 39.833; -89.083
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