Illinois (territory) -- Monroe (county)

County Quick Reference

County Seat: Harrisonville

County Name: Named for James Monroe, Secretary of War and later President of the United States.

Boundary Changes
(click on the name of a change to see more information)
01 JUN 1816337Created from Randolph and St. Clair counties



(click on a title below to view laws involved in the formation or governance of the area)
(general information on the area to put it in the context of history)

Monroe County was formed on 01 June 1816 by Territorial Law [click here for more information]. The county's boundaries remained unchanged before statehood.

The following map shows the original size of the county at its founding (in red with yellow border) superimposed on a modern map.

Monroe County in 1816


(click on a year below to view information on the population of the area)


(click on the title of the following works to learn more about life in the area; for those items not available online, check with your local library for availability)

  • Circular an Die Deutschen Demokraten in St. Clair Und Monroe County. S.l.: s.n., 1848.
  • Combined history of Randolph, Monroe and Perry counties, Illinois . With illustrations descriptive of their scenery and biographical sketches of some of their prominent men and pioneers. Philadelphia : J.L. McDonough & Co, 1883
  • Centennial Atlas of Monroe County, Illinois. 1 vols. Waterloo,: Centennial Atlas Co., 1916. Precinct History of Monroe County, Illinois. Columbia, Ill.,: Pub. by the Columbia Star, 1916.
  • History of Columbia and Columbia Precinct, Monroe County, Illinois, 1859-1959 and Centennial Celebration, Columbia, Illinois, July 3-4-5, 1959. S.l.: s.n., 1959.
  • Illustrated Historical Atlas Map of Monroe County, Ills. 1 vols. Mt. Vernon, Ind.: Windmill Publications, 1992.
  • Portrait and biographical record of Randolph, Jackson, Perry and Monroe counties, Illinois. Containing biographical sketches of prominent and representative citizens ... the presidents of the United States, and the governors of the state of Illinois. Chicago : Biographical Pub. Co., 1894
  • Veterans of Monroe County, Illinois. Evansville, IN: M.T. Pub. Co., 2008.
  • Bundy, Gloria Maeys and Cynthia Schein. Maeystown Recalled : Recollections of the Life, Customs and Food of the Early Days (1852-1920). State College, Pa.: The Authors, 1992.
  • Centennial Atlas Co. Plat Book of Monroe County, Illinois The Heritage Collection: Illustrated Atlas from Unigraphic. Evansville, Ind.: Unigraphic, 1978.
  • Clark, Marsha Lynn. The Kohlenberger-Schmulbach Beginnings : A Family History. St. Louis, Mo.: Murray Print Shop/University Bindery, 2000.
  • Engelbrecht, Lloyd. Meet My Waterloo. [Rev. ed. The Sea Ranch, CA: L. Engelbrecht, 2003.
  • Hermann, Dennis A. Civil War Soldiers, Monroe County, Illinois. 1 vols. Waterloo, Ill.: Dennis A. Herman, 2004.
  • Howell, Donna K. Lenhardt. Kohlmeier Reflections : Footsteps in Time. Windsor, Colo.: D.K. Howell, 1987.
  • Howell, Donna K. Lenhardt. Mere Reflections : Lenhardt Family History, 1839-Present. Brighton i.e. Greeley , Colo.: D.K. Howell, 1988.
  • Immaculate Conception Parish (Madonnaville Ill.), Judy Eschmann and Olin's Photography & Picture Framing. The Parish of Immaculate Conception, Madonnaville, Illinois : 150th Anniversary Founded 1833. Waterloo, Ill.: Printed by Price Print. Co., 1983.
  • Immanuel Lutheran Church (Waterloo Ill.). Immanuel Lutheran Church, Waterloo, Illinois, 1994. 1 vols. Galion, Ohio: United Church Directories, 1994.
  • Jerger, F. Festschrift Zum Fünfundsiebzigjährigen Jubiläum Der Evangelischen Salems-Gemeinde Zu Bluff Precinct, Monroe County, Illinois, 1845-1920. St. Louis, Mo.: Eden Pub. House Print, 1920.
  • Klein, Helen Ragland. Arrowheads to Aerojets : Monroe County, Illinois 1673-1966. Valmeyer, Ill.: Myron Roever Associates, 1967.
  • Kueker, Edmund E. As Best I Remember It. Valmeyer, IL: Printed by MAR Graphics, 2003.
  • Morrison, W. R. [Map of Monroe County, Illinois. Waterloo, Ill.,, 1907.
  • Morrison-Talbott Library (Waterloo Ill.). A Collection of Histories of Some Churches in Monroe County, Illinois. Waterloo, Ill.: The Library, 2002.
  • Rex, Nelson William. Building Faith in God : The Churches of Monroe County and Nearby Randolph County, Illinois. Valmeyer, Ill.: MAR Graphics, 2006.
  • Rex, Nelson William. Grand Legacy : A History of Monroe, County, Illinois. Waterloo, Ill.: Nelson William Rex, 2011.
  • Schaller, Mrs James E. and Whiteside Station Chapter NSDAR. Index Combined Atlases of Monroe County, Illinois, 1875, 1901, 1916. Waterloo, Ill.?: Whiteside Station Chapter NSDAR, 1997.
  • Van Buren, Conrad and Susan Neumans Van Buren. The Van Burens of Waterloo, Illinois : A Family History. 1 vols. Niceville, FL: C. Van Buren, 1998.
  • Voris, Conrad. [History of Monroe County, Illinois]. Waterloo, Ill.,: Waterloo Republican, 1940.
  • Voris, H. C. A Collection of Historic Sketches of Monroe County and Vicinty. Waterloo, Ill.: H.C. Voris, 1998.
  • Wezelaar-Dobbelmann, Liesbeth. Louis Dobbelmann, 1837-1901 : Yankee and Rotterdammer. Amsterdam, Netherlands: Van Soeren & Co., 1997.
  • Windmill Publications Inc. "Combined Atlases of Monroe County, Illinois, 1875, 1901, 1916." Mt. Vernon, IN: Windmill Publications, 1992.
Related Content
(the links below contain information related to this area)

Census of Illinois Territory, 1818, Monroe County

The census covers Monroe county. The census includes name of county and for each household name of head of household, numbers of free white males twenty-one years of age or older, other white inhabitants, free Negroes and mulattoes, and servants and slaves.

An Act for forming a new county out of Randolph and St. Clair counties, 1816

Be it enacted by the Legislative Council and House of Representatve of the Illinois Territory' and it is hereby enacted by the authority of the same ; That all that part of the country within the following bounds, viz, Beginning on the Mississippi River where the base line, which is about three fourths of a mile below Judge Biggs' present residence strikes the said River, thence with the base line untill it strkes the first township line therefrom, thence S.E. to the S.E. corner of township two, south range, nine West, thence south to the south East corner of township four, south range nine West, thence south Westwardly to the Mississippi so as to include Alexander M'Nabb's farm, and thence up the Mississippi to the be- ginning, shall constitute a sepparate county to be called Monroe

An Act to erect a new county out of the counties of Randolph and Johnson, 1816

Be it enacted by the Legislative Council and House of Representatives of the Illinois Territory, and it is hereby enacted by the authority of the same, That all that part of the counties of Randolph and Johnson included within the following bounds to wit : Begining at the mouth of Big Muddy river and running up the same to the township line between ten and eleven ; thence east with said line to the principal meridian line running from the mouth of the Ohio river; thence north with the meridian line thirty miles; thence west twenty four miles to the corner of range between four and five west of the principal meridian line ; thence south six miles to the township corner between six and seven ; thence to the head waters of the creek called Gagnic, and down it to the Mississippi ; thence down the Mississippi to the beginning, shall be a seperate and distinct county and called and known by the name of Jackson


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