Tonti Township, Marion County, Illinois

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Tonti Township
Country United States
State Illinois
County Marion
Elevation 591 ft (180.1 m)
Coordinates 38°41′N 88°58′W / 38.683°N 88.967°W / 38.683; -88.967Coordinates: 38°41′N 88°58′W / 38.683°N 88.967°W / 38.683; -88.967
Area 35.55 sq mi (92.1 km2)
 - land 35.45 sq mi (92 km2)
 - water 0.1 sq mi (0 km2)
Population 1,013 (2010)
Density 28.6/sq mi (11.0/km2)
Settled November 4, 1873
Timezone CST (UTC-6)
 - summer (DST) CDT (UTC-5)
Map highlighting Tonti Township, Marion County, Illinois.svg
Location in Marion County
Location of Tonti Township in Illinois
Map of USA IL.svg
Location of Illinois in the United States

Tonti Township is located in Marion County, Illinois. As of the 2010 census, its population was 1,013 and it contained 430 housing units.[1]


Tonti Township was named in honor of Henry de Tonti, one of the early explorers of Illinois.[2]


Tonti Township (T3N R2E) is centered at 38°41'N 88°58'W (88.691,-88.975). It is transversed northeast-south by Interstate Route 57 and State Route 37. Part of the Salem Reservoir (El. 166 m) is located at the southeastern part of the township. According to the 2010 census, the township has a total area of 35.55 square miles (92.1 km2), of which 35.45 square miles (91.8 km2) (or 99.72%) is land and 0.1 square miles (0.26 km2) (or 0.28%) is water.[1]

Adjacent townships[edit]


  1. ^ a b "Population, Housing Units, Area, and Density: 2010 - County -- County Subdivision and Place -- 2010 Census Summary File 1". United States Census. Retrieved 2013-05-28. 
  2. ^ 'Brikerhoff's Hisotory Marion County, Illinois,' J.H.G. Brinkerhoff, B.F. Bowen & Company. Indianapolis, Indiana, 1909, Tonti Township, pg. 158-162

External links[edit]