Jersey County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 22,985. The county seat is Jerseyville.
Grafton is the oldest city in Jersey County, Illinois, United States. It is located near the confluence of the Illinois and Mississippi Rivers. As of the 2010 U.S. census, the city had a total population of 674. Prior to the Great Flood of 1993, Grafton had enjoyed a stable population of nearly 1,000 residents.
Lemont Township is one of 29 townships in Cook County, Illinois, USA. As of the 2010 census, its population was 21,113.
Loda Township is one of twenty-six townships in Iroquois County, Illinois, USA. As of the 2010 census, its population was 1,461 and it contained 790 housing units.
Buckheart Township is one of twenty-six townships in Fulton County, Illinois, USA. As of the 2010 census, its population was 1,484 and it contained 709 housing units.
Kerton Township is one of twenty-six townships in Fulton County, Illinois, USA. As of the 2010 census, its population was 121 and it contained 81 housing units.
Putman Township is one of twenty-six townships in Fulton County, Illinois, USA. As of the 2010 census, its population was 2,137 and it contained 964 housing units.
Beardstown Township is one of eleven townships in Cass County, Illinois, USA. As of the 2010 census, its population was 6,983 and it contained 2,741 housing units.
Hagener Township is one of eleven townships in Cass County, Illinois, USA. As of the 2010 census, its population was 381 and it contained 163 housing units.
Elsah Township is one of eleven townships in Jersey County, Illinois, United States. As of the 2010 census, its population was 2,462 and it contained 1,027 housing units.
English Township is one of eleven townships in Jersey County, Illinois, United States. As of the 2010 census, its population was 487 and it contained 198 housing units.
Fidelity Township is one of eleven townships in Jersey County, Illinois, United States. As of the 2010 census, its population was 715 and it contained 309 housing units.
Jersey Township is one of eleven townships in Jersey County, Illinois, United States. As of the 2010 census, its population was 10,165 and it contained 4,398 housing units.
Mississippi Township is one of eleven townships in Jersey County, Illinois, United States. As of the 2010 census, its population was 2,041 and it contained 804 housing units.
Otter Creek Township is one of eleven townships in Jersey County, Illinois, United States. As of the 2010 census, its population was 1,035 and it contained 422 housing units.
Piasa Township is one of eleven townships in Jersey County, Illinois, United States. As of the 2010 census, its population was 3,376 and it contained 1,321 housing units.
Richwood Township is one of eleven townships in Jersey County, Illinois, United States. As of the 2010 census, its population was 653 and it contained 302 housing units.
Rosedale Township is one of eleven townships in Jersey County, Illinois, United States. As of the 2010 census, its population was 456 and it contained 295 housing units.
Ruyle Township is one of eleven townships in Jersey County, Illinois, United States. As of the 2010 census, its population was 421 and it contained 162 housing units.
Germantown Township is one of fifteen townships in Clinton County, Illinois, USA. As of the 2010 census, its population was 2,070 and it contained 821 housing units.
