Barrington Township is one of 29 townships in Cook County, Illinois, USA. As of the 2010 census, its population was 15,636. The northwestern corner of the Cook County panhandle, it is the county's northwesternmost township. It is also by far the least densely populated township in the county, with less than half the population density of the next least Lemont Township. Barrington Township was named after the town of Great Barrington, Massachusetts. Geography According to the United States Census Bureau, Barrington Township covers an area of ; of this, is land and (3.26 percent) is water. Cities, towns, villages Barrington (mostly) Barrington Hills (south three-quarters) East Dundee (part) Hoffman Estates (part) Inverness (west quarter) South Barrington Unincorporated Towns Barrington Center at Middlebury at Sutton at Cemeteries The township contains two historic cemeteries: Barrington Center and Union. Major highways Interstate 90 U.S. Route 14 Illinois Route 59 Illinois Route 62 Illinois Route 68 Illinois Route 72 Airports and landing strips Allstate Commercial Plaza Heliport Mill Rose Farm RLA Airport Rose Number 2 Heliport Lakes Beverly Lake Crabtree Lake Dana Lake Goose Lake Hawley Lake Hawthorne Lake Heather Lake Keene Lake Lacey Lake Mirror Lake Mud Lake Spring Lake Stephanie Lake Landmarks Barrington Forest Preserve (west quarter) Cook County-Potawatomi Woods Forest Preserve Crabtree Nature Center (Cook County Forest Preserve) Prairie Stone Business Park Demographics School districts Barrington Community Unit School District 220 Community Unit School District 300 School District 46 Political districts Illinois's 6th congressional district State House District 52 State House District 54 State Senate District 26 State Senate District 27 References United States Census Bureau 2007 TIGER/Line Shapefiles United States National Atlas External links Barrington Township official website City-Data.com Illinois State Archives Township Officials of Illinois Cook County official website Townships in Cook County, Illinois Townships in Illinois