Ogle County is a county in the northern part of the U.S. state of Illinois. According to the 2020 United States Census, it had a population of 51,788. Its county seat is Oregon, and its largest city is Rochelle. Ogle County comprises Rochelle, IL Micropolitan Statistical Area, which is also included in the Rockford-Freeport-Rochelle, IL Combined Statistical Area.
Montmorency Township is located in Whiteside County, Illinois. As of the 2010 census, its population was 2,612 and it contained 1,027 housing units. It is located south of the city of Rock Falls.
Byron Township is one of twenty-four townships in Ogle County, Illinois, USA. As of the 2010 census, its population was 6,563 and it contained 2,594 housing units.
Dement Township is one of twenty-four townships in Ogle County, Illinois, USA. As of the 2010 census, its population was 989 and it contained 409 housing units.
Flagg Township is located in Ogle County, Illinois. As of the 2010 census, its population was 13,562 and it contained 5,525 housing units.
Grand Detour Township is located in Ogle County, Illinois. As of the 2010 census, its population was 698 and it contained 385 housing units.
Leaf River Township is located in Ogle County, Illinois. As of the 2010 census, its population was 1,137 and it contained 520 housing units.
Lynnville Township is located in Ogle County, Illinois. As of the 2010 census, its population was 642 and it contained 247 housing units.
Marion Township is located in Ogle County, Illinois. As of the 2010 census, its population was 4,135 and it contained 1,531 housing units. This population dropped in 2022 when a population of 3,898 people was recorded.
Maryland Township is located in Ogle County, Illinois. As of the 2010 census, its population was 535 and it contained 251 housing units.
Pine Creek Township is located in Ogle County, Illinois, United States. As of the 2010 census, its population was 758 and it contained 320 housing units.
Pine Rock Township is located in Ogle County, Illinois. As of the 2010 census, its population was 985 and it contained 413 housing units.
Rockvale Township is located in Ogle County, Illinois. As of the 2010 census, its population was 1,770 and it contained 804 housing units.
Scott Township is located in Ogle County, Illinois. As of the 2010 census, its population was 3,181 and it contained 1,104 housing units.
Taylor Township is located in Ogle County, Illinois. As of the 2010 census, its population was 963 and it contained 488 housing units. A referendum to merge Taylor Township with neighboring LaFayette Township failed when Taylor voted against the referendum. The referendum was approved in LaFayette.
Bradford Township is one of twenty-two townships in Lee County, Illinois, USA. As of the 2010 census, its population was 324 and it contained 124 housing units. Ashton Township was formed from part of Bradford Township on February 12, 1861.
Marion Township is located in Lee County, Illinois. As of the 2010 census, its population was 232 and it contained 114 housing units.
Otter Creek Township is located in LaSalle County, Illinois. As of the 2010 census, its population was 2,970 and it contained 1,247 housing units. Otter Creek was formed from a portion of Bruce Township on an unknown date.
Coe Township is located in Rock Island County, Illinois. As of the 2010 census, its population was 1,657 and it contained 659 housing units. Coe Township originally was named Fremont Township, but changed its name to Penn Township on October 1, 1857. Then changed its name from Penn to Coe in January, 1858.
Chesterfield Township is located in Macoupin County, Illinois, United States. As of the 2010 census, its population was 855 and it contained 380 housing units.
