maps.ilgw.orgIllinois County Boundaries 1790 - Present

Illinois County Boundaries 1790 - Present Michael L. Hébert Click on a year to see the Illinois county map for that year. New counties are listed for each year. To see all of the maps on one page click ’All’ but this may take some time to load. Most of the information for these maps came from Origin and Evolution of Illinois Counties published by the Secretary of the State of Illinois. For software that includes county boundary development maps for all U.S. states, you can check out a demo version of AniMap at the Goldbug web site . 1790 (N.W. Terr.) St.Clair, Knox 1795 (N.W. Terr.) Randolph 1801 (Indiana Terr.) 1803 (Indiana Terr.) 1809 (Illinois Terr.) Knox extinct 1812 (Illinois Terr.) Madison, Gallatin, Johnson 1813 (Illinois Terr.) 1815 (Illinois Terr.) Edwards (1814), White 1816 (Illinois Terr.) Monroe, Jackson, Pope, Crawford 1817 (Illinois Terr.) Bond 1818 (Illinois Terr.) Franklin, Union, Washington Statehood 1819 Alexander, Clark, Jefferson, Wayne 1821 Lawrence, Greene, Sangamon, Pike, Hamilton, Montgomery, Fayette 1823 Edgar, Marion, Fulton, Morgan 1824 Clay, Clinton, Wabash 1825 Calhoun, Adams, Hancock, Henry, Knox, Mercer, Peoria, Putnam, Schuyler, Warren 1826 Vermilion, McDonough 1827 Shelby, Perry, Tazewell, JoDaviess 1829 Macoupin, Macon 1831 Coles (1830), McLean (1830), Cook, LaSalle, Rock Island, Effingham, Jasper 1833 Champaign, Iroquois 1836 Will, Kane, McHenry, Ogle, Whiteside, Winnebago 1837 Livingston, Bureau, Cass, Boone, DeKalb, Stephenson 1839 Marshall, Brown, DuPage, Dane / Christian, Logan, Menard, Scott, Carroll, Lee, Jersey, Warren, Williamson, DeWitt, Lake, Hardin, Stark 1841 Henderson, Mason, Piatt, Grundy, Kendall, Richland, Woodford 1843 Massac, Moultrie, Cumberland, Pulaski 1847 Saline 1853 Kankakee 1859 (to present) Douglas, Ford All Load all maps at once (may take a while to load) Other Illinois-related Map Sites ILGenWeb Map ILGenWeb Main Page Cyndi’s List of Illinois Maps & Geography Sites Historical Maps of the United States Goldbug - Home of AniMap John Robertson’s Genealogy & Maps Michael L. Hébert U S [REMOVE.THIS.TEXT] G W MLH eb ert .c o m JavaScript is disabled in your browser! Some features and links may not work properly. Copyright © 1997-2024. All rights reserved. Michael L....