a median income of $50,714 versus $33,750 for females. The per capita income for the village was $28,757. About 3.4% of families and 5.0% of the population were below the poverty line, including 3.8% of those under age 18 and 5.6% of those age 65 or over. Government McCook is in Illinois's 3rd congressional district. Business McCook is home to a large amount of heavy industry, including portions of Vulcan Materials Company McCook Quarry, UOP, and the Electro-Motive Diesel (EMD) railroad locomotive plant. Known as the LaGrange plant for its mailing address (McCook does not have its own post office), EMD produced most of their locomotives there from 1935 to 1991, when parent company General Motors moved all final-assembly operations to London, Ontario. The LaGrange plant continues to manufacture locomotive parts and engines, and also serves as the EMD U.S. headquarters. Education A part of McCook is served by the Lyons School District 103 and J. Sterling Morton High School District 201's Morton West High School located in Berwyn. Another part of McCook is served by Lyons Township High School in Western Springs/LaGrange. References Villages in Illinois Villages in Cook County, Illinois Chicago metropolitan area