Illinois (territory) -- Union (county)



County Quick Reference

County Seat: Jonesboro

County Name: Named for the "union meeting" between the Baptists and Dunkards.

Boundary Changes
(click on the name of a change to see more information)
02 JAN 1818422Created from Johnson County



(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)

Union County was formed on 02 January 1818 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.

Union County in 1818


(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)

  • Pictures from the Past : Union County, Illinois. Anna, Ill.: Reppert Publications, 1998.
  • Boatman, Williamm Jasper. The Sesquicentennial St. John's [Sic] Lutheran Church near Dongola, Union County, Illinois : Illinois' Oldest Lutheran Congregation. Dongola, Ill?: The Church, 1966.
  • Brumleve, Patrick C., Lulu Leonard and Union County Historical & Genealogy Society (Ill.). Land Entries for Union County, Illinois (1818-1920). Cobden, Ill.: The Society, 1996.
  • Cobden (Ill.). History Committee of the Development Program. and Historical & Genealogy Society of Union County Illinois. History of Cobden. Cobden, Ill.: Union County Historical & Genealogy Society, 1996.
  • Condon, Sidney S. and Darrel Dexter. Pioneer Sketches of Union County, Illinois. Ullin, Ill.: D. Dexter, 1987.
  • Dexter, Darrel. A House Divided : Union County, Illinois, 1818-1865. Anna, Ill. (P.O. Box 529, 112 Lafayette St.): Reppert Publications, 1994.
  • Dexter, Darrel, Jonesboro Lincoln-Douglas Debate Sesquicentennial Committee., Illinois Humanities Council., National Endowment for the Humanities. and Illinois. General Assembly. Union County, Illinois and the Lincoln-Douglas Debate of 1858. Jonesboro, Ill.: Jonesboro Lincoln-Douglas Debate Sesquicentennial Committee, 2008.
  • Krause, Bonnie J. and United States. Forest Service. Eastern Region. Family of the Hills : An Oral History of Odie and Florence Bridgeman, Union County, Illinois Cultural Resources Management Report. Milwaukee, Wis.?: USDA Forest Service Eastern Region, 1985.
  • Old, settler, Patrick C. Brumleve and Union County Historical & Genealogy Society (Ill.). Union County, Illinois : Its Early Settlement, Pioneer Life, Soil, Climate, Resources and Productions. Cobden, Ill.: The Society, 1996.
  • Palmer, Stanley. A Brief History of the Evangelical Lutheran Church in Union County, Illinois, 1816-1985. Illinois?: s.l., 1985.
  • Perrin, William Henry. History of Alexander, Union and Pulaski Counties, Illinois. Chicago, Ill. : O.L. Baskin & Co., 1883.
  • Park, George E. History of Union County Illinois : With Some Genealogy Notes. 3 vols. Illinois Collection. Anna, Ill.: Parks, 1983.
  • Toler, Cecil Oliver. A History of the Union Co., Il, Tolers and Allied Families. Dongola, IL: Cecil Oliver Toler, 2002.
  • Union County Chamber of Commerce (Union County Ill.). Union County, Illinois. Limited ed. Paducah, Ky.: Turner Pub. Co., 2001.
  • Whitemountain, Susan A. Isaac Jackson Sitter Family : A Union County, Illinois Family History Conrad Sitter Family Series. Descendent #5. Atlantic Beach, FL: Sitter Books, 2010.
Related Content
(the links below contain information related to this area)

Census of Illinois Territory, 1818, Union County

The census covers Union 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 adding a part of Pope county to Johnson, and forming a new county out of Johnson county, 1818

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 the boundary lines of Johnson county,
shall hereafter be as follows, to-wit : Beginning on the range line, between ranges four and five, east of the third principal meridian, at the corner between townships ten and eleven, south of the base line ; thence south along the said range line to the Ohio river ; thence down along the Ohio river, to where the range line between ranges one and two east intersects the said river ; thence north along the said range line to the corner of townships ten and eleven south; thence east along the township line, between townships ten and eleven, south to the beginning. And that all that part of Pope county, which is included within the said boundary, shall hereafter be attached to and form a part of Johnson county

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