Henry County is a county located in the U.S. state of Illinois. The 2020 United States Census, listed its population at 49,284. Its county seat is Cambridge.
Annawan is an incorporated town in Henry County, Illinois, United States. The population was 878 at the 2010 census.
Gold Township is one of twenty-five townships in Bureau County, Illinois, USA. As of the 2020 census, its population was 152 and it contained 88 housing units.
Mineral Township is one of twenty-five townships in Bureau County, Illinois, USA. As of the 2020 census, its population was 477 and it contained 241 housing units.
Middleport Township is one of twenty-six townships in Iroquois County, Illinois, USA. As of the 2010 census, its population was 4,375 and it contained 2,099 housing units. Middleport Township changed its name to Watseka Township in September 1863, but then changed back to Middleport Township on an unknown date.
Alba Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 220 and it contained 95 housing units. Alba Township changed its name from Elba Township on April 13, 1857. The name may be derived from Elba, New York, the native home of a share of the early settlers.
Atkinson Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 1,274 and it contained 592 housing units.
Burns Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 265 and it contained 130 housing units.
Cambridge Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 2,525 and it contained 1,070 housing units.
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.
Edford Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 667 and it contained 284 housing units.
Galva Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 2,837 and it contained 1,402 housing units.
Geneseo Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 7,468 and it contained 3,407 housing units.
Kewanee Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 10,162 and it contained 4,608 housing units.
Loraine Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 290 and it contained 122 housing units.
Wethersfield Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 3,935 and contained 1,827 housing units.
Yorktown Township is one of twenty-four townships in Henry County, Illinois, USA. As of the 2010 census, its population was 431 and it contained 190 housing units.
Ellisville Township is one of twenty-six townships in Fulton County, Illinois, USA. As of the 2010 census, its population was 155 and it contained 69 housing units.
Levan Township is one of sixteen townships in Jackson County, Illinois, USA. As of the 2010 census, its population was 850 and it contained 365 housing units.
Frankfort Township is one of twelve townships in Franklin County, Illinois, USA. As of the 2010 census, its population was 7,029 and it contained 3,362 housing units.
United States 
Illinois 
