Barrington is a village in Cook County and Lake County, Illinois, United States. The population was 10,327 at the 2010 census. A northwest suburb of Chicago, the area features wetlands, forest preserves, parks, and horse trails in a country-suburban setting. The Barrington area ZIP code, 60010, is the seventh-wealthiest ZIP code in the United States among areas with a population of 20,000 or more.Barrington is part of the Chicago metropolitan area and serves as the hub of activity for the surrounding 90-square-mile (230 km2) region which consists of six independent villages including North Barrington, South Barrington, Barrington Hills, Lake Barrington and Tower Lakes, as well as small portions of Carpentersville, Deer Park, Hoffman Estates, Fox River Grove, Port Barrington and Inverness. The village’s motto is “a great place to live, work, and play!”
By treaty dated September 26, 1833, ending the Black Hawk War, the Chippewa, Ottawa and Potawatomi tribes ceded to the United States all lands from the west shore of Lake Michigan west to the area that the Winnebago tribe ceded in 1832, north to the area that the Menominees had previously ceded to the United States, and south to the area previously ceded by an 1829 treaty at Prairie du Chien, a total of approximately 5,000,000 acres (20,000 km2). Through this treaty, the Sacs, Fox, Winnebago, Chippewa, Ottawa and Pottawatomi tribes ceded all title to the area east of the Mississippi River.
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