Algonquin Township, Illinois

Algonquin Township
Township
Location in McHenry County
Coordinates: 42°11′48″N 88°16′41″W / 42.19667°N 88.27806°W / 42.19667; -88.27806
Country United States
State Illinois
CountyMcHenry
TownshipAlgonquin
EstablishedNovember 6, 1849
Government
 • SupervisorRandy Funk
Area
 • Total
48.03 sq mi (124.4 km2)
 • Land46.42 sq mi (120.2 km2)
 • Water1.61 sq mi (4.2 km2)  3.35%
Elevation
902 ft (275 m)
Population
 (2020)
 • Total
87,633
 • Density1,904.2/sq mi (735.2/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
Area codes815, 779, 847, 224
FIPS code17-111-00698
Websitewww.algonquintownship.com

Algonquin Township is located in McHenry County, Illinois, with the township office in the city of Crystal Lake. As of the 2020 census, its population was 87,633 and it contained 33,960 housing units. It is the largest township by population in McHenry County.