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.
Leaf River is a village in Leaf River Township, Ogle County, Illinois, United States, along a stream of the same name. The population was 443 at the 2010 census, down from 555 in 2000.
Mount Morris is a village in Mount Morris Township, Ogle County, Illinois, United States. The population was 2,998 at the 2010 census, down from 3,013 in 2000.
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.
Grand Detour Township is located in Ogle County, Illinois. As of the 2010 census, its population was 698 and it contained 385 housing units.
LaFayette Township is located in Ogle County, Illinois. As of the 2010 census, its population was 170 and it contained 72 housing units. A referendum to merge LaFayette Township with neighboring Taylor Township failed when Taylor voted against the referendum. The referendum was approved in LaFayette.
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.
Mount Morris Township is located in Ogle County, Illinois. As of the 2010 census, its population was 3,968 and it contained 1,858 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.
Woosung Township is located in Ogle County, Illinois. As of the 2010 census, its population was 389 and it contained 156 housing units.
Burritt Township is located in Winnebago County, Illinois, United States. As of the 2010 census, its population was 947 and it contained 388 housing units.
Rockton Township is located in Winnebago County, Illinois. As of the 2010 census, its population was 16,441 and it contained 6,822 housing units.
Fayetteville Township is located in St. Clair County, Illinois. As of the 2010 census, its population was 1,668 and it contained 722 housing units.
Lenzburg Township is located in St. Clair County, Illinois. As of the 2010 census, its population was 1,047 and it contained 450 housing units.
Eminence Township is located in Logan County, Illinois. As of the 2010 census, its population was 421 and it contained 186 housing units.
Marengo Township is located in McHenry County, Illinois. As of the 2020 census, its population was 7,202 and it contained 3,065 housing units. Marengo is a city located in the township.
Gardner Township is located in Sangamon County, Illinois. As of the 2010 census, its population was 4,245 and it contained 1,732 housing units. The township contains the unincorporated communities of Bradfordton and Salisbury.
Rochester Township is located in Sangamon County, Illinois. As of the 2010 census, its population was 5,361 and it contained 2,081 housing units.
Williams Township is located in Sangamon County, Illinois. As of the 2010 census, its population was 3,446 and it contained 1,332 housing units.
