Cornwall Township is one of twenty-four townships in Henry County, Illinois, US. At the 2010 census, its population was 278 and it contained 119 housing units.

Geography

According to the 2010 census, the township has a total area of 35.66 square miles (92.4 km), of which 35.57 square miles (92.1 km) (or 99.75%) is land and 0.09 square miles (0.23 km) (or 0.25%) is water.

Cities, towns, villages

• Atkinson (partial)

Adjacent townships

• Atkinson Township (north)
• Alba Township (northeast)
• Annawan Township (east)
• Kewanee Township (southeast)
• Burns Township (south)
• Cambridge Township (southwest)
• Munson Township (west)
• Geneseo Township (northwest)

Cemeteries

The township contains these three cemeteries: Grand View, Liberty and Saint Anthony.

Major highways

• Interstate 80
• U.S. Route 6

Demographics

Historical population

Census	Pop.	Note	%±
2016 (est.)	272
U.S. Decennial Census

School districts

• Annawan Community Unit School District 226
• Cambridge Community Unit School District 227
• Geneseo Community Unit School District 228
• Kewanee Community Unit School District 229

Political districts

• Illinois's 14th congressional district
• State House District 74
• State Senate District 37

Notable people

• Art Benedict, baseball player (MLB second baseman for the Philadelphia Quakers)
• Joe McGinnity, baseball player (MLB Hall of Fame pitcher for the Baltimore Orioles, Brooklyn Superbas and New York Giants)