Seneca Township is located in McHenry County, Illinois. As of the 2020 census, its population was 2,893 and it contained 1,102 housing units.

Seneca Township
Township
Flag of Seneca Township
Location in McHenry County
Location in McHenry County
CountryUnited States
StateIllinois
CountyMcHenry
EstablishedNovember 6, 1849
Area
 • Total35.96 sq mi (93.1 km2)
 • Land35.95 sq mi (93.1 km2)
 • Water0.01 sq mi (0.03 km2)  0.03%
Population
 (2020)
 • Total2,893
 • Density81.9/sq mi (31.6/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
FIPS code17-111-68653
Websitehttp://www.senecatownship.com/

Geography

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According to the 2010 census, the township has a total area of 35.96 square miles (93.1 km2), of which 35.95 square miles (93.1 km2) (or 99.97%) is land and 0.01 square miles (0.026 km2) (or 0.03%) is water.[1]

Demographics

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Historical population
CensusPop.Note
20102,944
20202,893−1.7%
U.S. Decennial Census[2]

References

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  1. ^ "Population, Housing Units, Area, and Density: 2010 - County -- County Subdivision and Place -- 2010 Census Summary File 1". United States Census. Archived from the original on February 12, 2020. Retrieved May 28, 2013.
  2. ^ "Census of Population and Housing". Census.gov. Retrieved June 4, 2016.
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42°16′43″N 88°31′38″W / 42.27861°N 88.52722°W / 42.27861; -88.52722