Big Foot Prairie is an unincorporated community

Unincorporated area

In law, an unincorporated area is a region of land that is not a part of any municipality.To "incorporate" in this context means to form a municipal corporation, a city, town, or village with its own government. An unincorporated community is usually not subject to or taxed by a municipal government...

 in both McHenry County

McHenry County, Illinois

McHenry County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 308,760, which is an increase of 18.7% from 260,077 in 2000. Its county seat is Woodstock. This county is part of the Chicago metropolitan area. It is the sixth largest county, in...

, Illinois

Illinois

Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

 and Walworth County

Walworth County, Wisconsin

Walworth County is a county located in the U.S. state of Wisconsin. As of 2010, the population was 102,228. Its county seat is Elkhorn.-Geography:According to the U.S...

, Wisconsin

Wisconsin

Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...

 in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The Illinois portion of the community, which is larger, is located in Chemung Township

Chemung Township, McHenry County, Illinois

Chemung Township is located in McHenry County, Illinois, United States. The population was 8,761 at the 2000 census. The unincorporated community of Big Foot Prairie is located partially in the township.- External links :***...

, while the Wisconsin portion is located in the Town of Walworth

Walworth (town), Wisconsin

Walworth is a town in Walworth County, Wisconsin, United States. The population was 1,676 at the 2000 census. The Village of Walworth is located within the town...

. Big Foot Prairie is located on U.S. Route 14

U.S. Route 14

U.S. Route 14 , an east–west route, is one of the original United States highways of 1926. It currently has a length of 1,398 miles , but it had a peak length of 1,429 miles . For much of its length, it runs roughly parallel to Interstate 90.As of 2004, the highway's eastern terminus is in...

 5 miles (8 km) north of Harvard

Harvard, Illinois

Harvard is a city located in McHenry County in the northeastern corner of the U.S. state of Illinois, approximately south of the Illinois/Wisconsin border. The population was 7,996 at the 2000 census...

. The community was named for Big Foot, a Potawatomi

Potawatomi

The Potawatomi are a Native American people of the upper Mississippi River region. They traditionally speak the Potawatomi language, a member of the Algonquian family. In the Potawatomi language, they generally call themselves Bodéwadmi, a name that means "keepers of the fire" and that was applied...

 chief who resided in the area in the 1820s and 1830s. It once had a post office

Post office

A post office is a facility forming part of a postal system for the posting, receipt, sorting, handling, transmission or delivery of mail.Post offices offer mail-related services such as post office boxes, postage and packaging supplies...

, which opened on May 15, 1848.