Portland Township, Whiteside County, Illinois
Portland Township is located in Whiteside County, Illinois. As of the 2010 census, its population was 422 and it contained 186 housing units.[2] GeographyAccording to the 2010 census, the township has a total area of 35.65 square miles (92.3 km2), of which 34.73 square miles (90.0 km2) (or 97.42%) is land and 0.92 square miles (2.4 km2) (or 2.58%) is water.[2] Demographics
References
External links41°36′40″N 90°03′18″W / 41.61111°N 90.05500°W
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