List of all cities and towns in Jersey County Jersey County is a county in the American state of Illinois. It had a population of 21,512 people according to the 2020 census. Jerseyville, the county seat and main community, with a population of 8,337 in 2010. Otterville, the county’s smallest incorporated community, has a population …
List of all cities and towns in Jefferson County Jefferson County is a county in the U.S. state of Illinois. It is in the southern part of the state. The 2020 census says that there are 37,113 people living there. Mount Vernon is the county seat. The Mount Vernon, Illinois micropolitan area is in Jefferson …
List of all cities and towns in Jasper County Jasper County is a county in the United States state of Illinois. It has a population of 9,698 people, according to the 2010 census. Newton is the county seat. Clay and Crawford Counties merged to establish Jasper County in 1831. It was named for Sgt. William …
List of all cities and towns in Jackson County Jackson County is a county in the U.S. state of Illinois. As of the 2020 census, there were 52,974 people living there. Its county seat is in Murphysboro, and Carbondale, where the main campus of Southern Illinois University is, is its most popular city. On January …
List of all cities and towns in Iroquois County Iroquois County is a county in the northeastern region of the United States state of Illinois. It has a population of 27,077 people, according to the 2020 United States Census. It is the only county in the United States named after the American Indian tribes. Watseka …
List of all cities and towns in Henry County Henry County is a county in the state of Illinois in the United States. The 2010 United States Census said that there were 50,486 people living there. Cambridge is the county seat. The Davenport-Moline-Rock Island, IA-IL Metropolitan Statistical Area has Henry County as a part of …
List of all cities and towns in Henderson County Henderson County is a county in Illinois, United States. It has a population of 7,331 people, according to the 2010 United States Census. Oquawka is its county seat. Henderson County is included in the Burlington, Iowa- Illinois Micropolitan Statistical Area. Henderson County was founded from a …
List of all cities and towns in Hardin County The U.S. county of Hardin County is in the state of Illinois. The 2020 census says that there are 3,649 people living there. This makes it the least populated county in Illinois. Elizabethtown is the county seat. The part of the state called “Little Egypt” is …
List of all cities and towns in Hancock County Hancock County is a county in Illinois, United States. It has a population of 17,620 people, according to the 2020 census. Carthage is the county seat, and Hamilton is the major city. The county is made up of rural towns with a large number of farmers. …
List of all cities and towns in Hamilton County Hamilton County is a county in the state of Illinois in the United States. At the 2020 census, there were 7,993 people living there. McLeansboro is the county seat. It is in the southern part of the state, which is called “Little Egypt” by the people …
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