Illinois County Creation Dates and Parent CountiesEdit This Page

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United States Gotoarrow.png Illinois Gotoarrow.png Illinois County Creation Dates and Parent Counties


Name of County Date Formed Boundary
Changes
Parent Counties Counties created by
boundary changes[2]
IRAD[3]
Depository
Adams 1825 Jan 13 Details Pike none WIU
Alexander 1819 Mar 04 Details Johnson none SIU
Bond 1817 Jan 04 Details Madison Clinton 1824, Fayette 1821, Pike 1821, Montgomery 1821, Sangamon 1821 UIS
Boone 1837 Mar 04 Details Winnebago none NIU
Brown 1839 Feb 01 Details Schuyler none WIU
Bureau 1837 Feb 28 Details Putnam none NIU
Calhoun 1825 Jan 10 Details Pike none WIU
Carroll   Details     NIU
Cass 1837 Mar 03 Details Morgan none UIS
Champaign 1833 Feb 20 Details Vermillion none ISU
Christian 1840 Feb 01 Details renamed from Dane none UIS
Clark 1819 Mar 22 Details Crawford Coles 1830, Edgar 1823, Ford 1859, Fayette 1821, Pike 1821 EIU
Clay 1824 Dec 23 Details Lawrence, Wayne, Fayette none EIU
Clinton 1824 Dec 27 Details Washington, Bond, Fayette none SIU
Coles 1830 Dec 25 Details Clark, Edgar Cumberland 1843, Douglas 1859 EIU
Cook 1831 Jan 15 Details Putnam DuPage 1839, McHenry 1836, Will 1836 NEIU
Crawford 1816 Dec 31 Details Edwards Clark 1819, Effingham 1821, Jasper 1831, Lawrence 1821 EIU
Cumberland 1843 Mar 02 Details Coles none EIU
Dane (See Christian) 1839 Feb 15 Details Sangamon renamed Christian 1840  
DeKalb 1837 Mar 04 Details Kane none NIU
DeWitt 1839 Mar 01 Details McLean, Macon Piatt 1841 ISU
Douglas 1859 Mar 21 Details Coles none EIU
DuPage 1839 Feb 09 Details Cook none NIU
Edgar 1823 Jan 03 Details Clark Coles 1830, Vermillion 1826 EIU
Edwards 1814 Nov 28 Details Madison, Gallatin Crawford 1816, Jefferson 1839, Lawrence 1821, Wabash 1827, Wayne 1819 EIU
Effingham 1831 Feb 15 Details Fayette, Crawford none EIU
Fayette 1821 Feb 14 Details Bond, Jefferson, Wayne, Clark Clay 1824, Clinton 1824, Effingham 1831, Marin 1833, Shelby 1827, Tazewell 1827 UIS
Ford 1859 Feb 17 Details Clark none ISU
Franklin 1818 Jan 02 Details White, Gallatin Williamson 1839 SIU
Fulton 1823 Jan 28 Details Pike Henry 1825, Knox 1825, Peoria 1825, Putnam 1825, Schuyler 1825 WIU
Gallatin 1812 Sep 14 Details Randolph Edwards 1814, Franklin 1818, Pope 1816, Saline 1847, White 1815 SIU
Greene 1821 Jan 20 Details Madison Jersey 1819, Macoupin 1829 UIS
Grundy 1841 feb 17 Details La Salle none ISU
Hamilton 1821 Feb 08 Details White none SIU
Hancock 1825 Jan 13 Details Pike none WIU
Hardin 1839 Mar 02 Details Pope none SIU
Henderson 1841 Jan 20 Details Warren none WIU
Henry 1825 Jan 13 Details Fulton Jo Daviess 1827, Whiteside 1836 WIU
Iroquois 1823 Feb 26 Details Vermillion Kankakee 1853, Will 1836 ISU
Jackson 1816 Jan 10 Details Randolph, Johnson Perry 1841 SIU
Jasper 1831 Feb 15 Details Crawford, Clay none EIU
Jefferson 1839 Feb 28 Details Edwards, White Fayette 1821, Marion 1833 SIU
Jersey 1819 Mar 26 Details Greene none UIS
Jo Daviess 1827 Feb 27 Details Mercer, Henry, Putnam Carroll 1837, Ogle 1836, Rock Island 1831, Stephenson 1837, Whiteside 1836, Winnebago 1836 NIU
Johnson 1812 Sep 14 Details Randolph Alexandr 1819, jackson 1816, Pope 1816, Massac 1843, Pulaski 1843, Union 1818 SIU
Kane 1836 Jan 16 Details La Salle DeKalb 1837, Kendall 1841 NIU
Kankakee 1853 Feb 11 Details Iroquois, Will none ISU
Kendall 1841 Feb 19 Details La Salle, Kane none NIU
Knox 1825 Jan 13 Details Fulton Stark 1839 WIU
Lake 1839 Mar 01 Details Mc Henry none NIU
LaSalle 1831 Jan 15 Details Putnam, Vermillion Grundy 1841, Kane 1836, Kendall 1841, Livingston 1837 NIU
Lawrence 1821 Jan 16 Details Crawford, Edwards Clay 1824, Richland 1841 EIU
Lee 1839 Feb 27 Details Ogle none NIU
Livingston 1837 Feb 27 Details La Salle, McLean none ISU
Logan 1839 Feb 15 Details Sangamon, Tazewell none ISU
Macon 1829 Jan 19 Details Shelby DeWitt 1839, Moultrie 1843, Pratt 1841 UIS
Macoupin 1829 Jan 17 Details Madison, Greene none UIS
Madison 1812 Sep 14 Details St. Clair Bond 1817, Edwards 1814, Green 1821, Macoupin 1829, Montgomery 1821, Pike 1821, Sangamon 1821 SIU
Marion 1833 Jan 24 Details Fayette, Jefferson none SIU
Marshall 1839 Jan 19 Details Putnam none ISU
Mason 1841 Jan 20 Details Tazewell none UIS
Massac 1843 Feb 08 Details Pope, Johnson none SIU
McDonough 1826 Jan 25 Details Schuyler none WIU
McHenry 1836 Jan 16 Details Cook Lake 1839 NIU
McLean 1830 Dec 25 Details Tazewell DeWitt 1839, Livingston 1837, Woodford 1841 ISU
Menard 1839 Feb 15 Details Sanagmon none UIS
Mercer 1825 Jan 13 Details Pike Jo Daviess 1827 WIU
Monroe 1816 Jan 06 Details Randolph, St. Clair none SIU
Montgomery 1821 Feb 12 Details Bond, Madison none UIS
Morgan 1823 Jan 31 Details Sangamon Cass 1837, Scott 1839 UIS
Moultrie 1843 Feb 16 Details Shelby, Macon none EIU
Ogle 1836 Jan 16 Details Jo Daviess Lee 1839 NIU
Peoria 1825 Jan 13 Details Fulton none WIU
Perry 1841 Jan 29 Details Randolph, Jackson none SIU
Piatt 1841 Jan 20 Details DeWitt, Macon none ISU
Pike 1821 Jan 31 Details Madison, Bond, Clark Adams 1825, Calhoun 1825, Fulton 1823, Hancock 1825, Mercer 1825, Schuyler 1825, Warren 1825 WIU
Pope 1816 Jan 10 Details Johnson, Gallatin Hardin 1839, Massac 1843 SIU
Pulaski 1843 Mar 03 Details Johnson none SIU
Putnam 1825 Jan 13 Details Fulton Bureau 1837, Cook 1831, Jo Daviess 1827, La Salle 1831, Marshall 1839, Stark 1839 NIU
Randolph 1795 Oct 05 Details St. Clair Gallatin 1812, Jackson 1816, Johnson 1812, Monroe 1816, Perry 1841, now in Indiana SIU
Richland 1841 Feb 24 Details Clay, Lawrence none EIU
Rock Island 1831 Feb 09 Details Jo Daviess none WIU
St. Clair 1790 Apr 27 Details Northwest Territory Madison 1812, Monroe 1816, Randolph 1795, Washington 1818, now in Indiana SIU
Saline 1847 Feb 25 Details Gallatin none SIU
Sangamon 1821 Jan 30 Details Bond, Madison Christian 1839, Logan 1839, Morgan 1823, Menard 1839, Dane 1839 UIS
Schuyler 1825 Jan 13 Details Pike, Fulton Brown 1839, McDonough 1826 WIU
Scott 1839 Feb 16 Details Morgan none UIS
Shelby 1827 Jan 23 Details Fayette Macon 1829, Moultrie 1843 EIU
Stark 1839 Mar 02 Details Knox, Putnam none WIU
Stephenson 1837 Mar 04 Details Winnebago, Jo Daviess none NIU
Tazewell 1827 Jan 31 Details Fayette, Sangamon McLean 1830, Mason 1841, Woodford 1841, Logan 1839 ISU
Union 1818 Jan 02 Details Johnson none SIU
Vermilion 1826 Jan 18 Details Edgar Champaign 1833, Iroquois 1823, La Salle 1831 ISU
Wabash 1827 Dec 27 Details Edwards none EIU
Warren 1825 Jan 13 Details Pike Henderson 1841 WIU
Washington 1818 Jan 02 Details St. Clair Clinton 1824 SIU
Wayne 1819 Mar 26 Details Edwards Clay 1824, Fayette 1821 EIU
White 1815 Dec 09 Details Gallatin Franklin 1818, Hamilton 1821, Jefferson 1839 SIU
Whiteside 1836 Jan 16 Details Jo Daviess, Henry none NIU
Will 1836 Jan 12 Details Cook, Iroquois Kankakee 1853 NIU
Williamson 1839 Feb 28 Details Franklin none SIU
Winnebago 1836 Jan 16 Details Jo Daviess Boone 1837, Stephenson 1837 NIU
Woodford 1841 Feb 27 Details Tazewell, McLean none ISU

References

  1. [http://historical-county.newberry.org/website/Illinois/viewer.htm Illinois Atlas of Historical County Boundaries, John H. Long, Editor; Peggy Tuck Sinko, Associate Editor; Gordon DenBoer, Historical Compiler; Douglas Knox, Book Digitizing Director and Digital Compiler; Emily Kelley, Research Associate; Laura Rico-Beck, GIS Specialist; Peter Siczewicz, ArcIMS Interactive Map Designer; Robert Will, Cartographic Assistant. Copyright The Newberry Library 2008.
  2. ibid. Illinois: Individual County Chronologies
  3. Each of the 7 Illinois Regional Archives Depositories (IRAD) house the original records from the counties in their region The depositories are:
    EIU=Eastern Illinois University
    ISU=Illinois State University
    NEIU=Northeastern Illinois University
    NIU=Northern Illinois University
    SIU=Southern Illinois University
    UIS=University of Illinois at Springfield
    WIU=Western Illinois University.

 

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  • This page was last modified on 22 May 2014, at 22:52.
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