Riverside Township is one of 29 townships in Cook County, Illinois, USA. As of the 2010 census, its population was 15,594. Geography According to the United States Census Bureau, Riverside Township covers an area of ; of this, (99.62 percent) is land and (0.38 percent) is water. Cities, towns, villages Brookfield (northeast quarter) Lyons (far northeastern edge) North Riverside (east three-quarters) Riverside (vast majority) Unincorporated Town Riverside Lawn at East Grossdale at Adjacent townships Berwyn Township (east) Stickney Township (southeast) Lyons Township (southwest) Proviso Township (northwest) Major highways U.S. Route 34 Rivers Des Plaines River Landmarks Brookfield Zoo These Cook County Forest Preserves Woods Brookfield Woods (Eastern majority) McCormick Woods Zoo Woods Demographics Political districts Illinois's 3rd congressional district State House District 08 State House District 21 State House District 41 State Senate District 04 State Senate District 11 State Senate District 21 References United States Census Bureau 2007 TIGER/Line Shapefiles United States National Atlas External links City-Data.com Illinois State Archives Cook County official site Riverside Township official website Townships in Cook County, Illinois Townships in Illinois