Lake County is a county located in the northeastern corner of the U.S. state of Illinois, along the shores of Lake Michigan. As of the 2020 census, it has a population of 714,342, making it the third-most populous county in Illinois. Its county seat is Waukegan, the tenth-largest city in Illinois. The county is primarily suburban, with some urban areas and some rural areas. Due to its location, immediately north of Cook County, Lake County is one of the collar counties of the Chicago metropolitan area. Its northern boundary is the Wisconsin state line.
Barrington Township is one of 29 townships in Cook County, Illinois, USA. As of the 2020 census, its population was 16,514 and it contained 6,172 housing units. 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.
Bloom Township is one of 29 townships in Cook County, Illinois, USA. As of the 2020 census, its population was 86,018 and it contained 33,964 housing units.
Palos Township is one of 29 townships in Cook County, Illinois. As of the 2020 census, its population was 56,836, with its most populous municipality being Palos Hills. The vast majority of the township's population resides in its eastern half; the half west of La Grange Road consists of the Palos Forest Preserves, a section of the Cook County Forest Preserves. In 1850 the small town of Trenton, Illinois changed its name to Palos; this recommendation was made by M.S. Powell, the local postmaster, whose ancestor supposedly sailed with Christopher Columbus from Palos de la Frontera. When it incorporated as a village in 1914, Palos officially became Palos Park. Nearby communities incorporated later: Hickory Hills, in 1951, and Palos Hills, in 1958. All three municipalities lie completely or substantially within Palos Township. Palos Heights, partially in Worth Township, incorporated in 1959.
Schaumburg Township is one of 29 townships in Cook County, Illinois, USA. As of the 2020 census, its population was 134,809. It is in the north west corner of Cook County.
Antioch Township is a town in the U.S. state of Illinois, located in Lake County. The population was 27,745 at the 2010 census.
Benton Township is a township in Lake County, Illinois, United States, and includes all of the village of Winthrop Harbor, most of the village of Beach Park, and small portions of the cities of Zion and Waukegan. As of the 2010 census, its population was 18,951. Zion Township was formed from Benton Township on September 12, 1930.
Cuba Township is a township in Lake County, Illinois, USA. As of the 2010 census, its population was 16,826. Cuba Township was originally named Troy Township, but was renamed to Cuba in support of the López Expedition of 1851, when it was discovered the township name of Troy was already taken.
Ela Township is a township in Lake County, Illinois, USA. As of the 2010 census, its population was 42,654.
Fremont Township is a township in Lake County, Illinois, USA. As of the 2020 census, its population was 33,422.
Grant Township is a township in Lake County, Illinois, USA. As of the 2010 census, its population was 26,523. Grant Township changed its name from Goodale Township on March 8, 1867.
Libertyville Township is a township in Lake County, Illinois, United States. As of the 2010 census, its population was 53,139. The village of Libertyville is part of the township, as are parts of Green Oaks, Lake Bluff, Lake Forest, Mettawa, Mundelein, North Chicago, Rondout, Vernon Hills and Waukegan.
Moraine Township is a township in Lake County, Illinois, USA. As of the 2010 census, its population was 34,129. Moraine Township was originally called Deerfield Township, but the name was changed on October 29, 1998.
Vernon Township is a township in Lake County, Illinois, USA. As of the 2010 census, its population was 67,095. The name "Vernon Township" comes from George Washington's estate, Mount Vernon.
Warren Township is a township in Lake County, Illinois, USA. As of the 2020 census, its population was 65,883. The cities of Gurnee, Park City, and Grayslake lie within its borders. The township was established in 1850 by settlers who came from the town of Warren, New York. Both were named in honor of Major General Joseph Warren, killed at the Battle of Bunker Hill.
Wauconda Township is a township in Lake County, Illinois, USA. As of the 2020 census, its population was 23,628.
Waukegan Township is a township in Lake County, Illinois, USA. As of the 2010 census, its population was 90,893.
Avon Township is a township in Lake County, Illinois, USA. As of the 2010 census, its population was 65,001.
Unity Township is a township in Piatt County, Illinois, USA. As of the 2010 census, its population was 1,418 and it contained 666 housing units.
Zion Township is a township in Lake County, in the U.S. state of Illinois. Its boundaries correspond exactly to those of the city of Zion. As of the 2010 census, its population was 24,413. It was formed from Benton Township on September 12, 1930.
