Illinois County Table


 

County

 

Date of
Formation

Parent County

County Seat

County Coordinators

Unknown        
Adams 1825 Pike Quincy
Alexander   1819 Union Cairo  
Bond   1818 Madison Greenville  
Boone   1836 Winnebago Belvidere  
Brown   1837 Schuyler Mount Sterling  
Bureau   1837 Putnam Princeton  
Calhoun
 
  1825 Pike Hardin  
Carroll   1839 Jo Daviess Mount Carroll  
Cass   1837 Morgan Virginia  
Champaign   1833 Vermilion Urbana  
Christian   1839 Dane (Montgomery, Sangamon, Shelby) Taylorville  
Clark   1819 Crawford Marshall  
Clay   1824 Crawford, Fayette, Wayne Louisville  
Clinton   1824 Bond, Washington Carlyle  
Coles   1830 Clark, Edgar Charleston Billie Erin Walsh
Cook   1831 Putnam Chicago Katy Hestand
Crawford
 
  1816 Edwards (IT) Robinson  
Cumberland   1843 Coles Toledo  
Dane   1839 Montgomery, Sangamon, Shelby Extinct - 1840
Now Christian
 
DeKalb   1837 Kane Sycamore  
DeWitt   1839 Macon, McLean Clinton  
Douglas   1859 Coles Tuscola  
DuPage   1839 Cook Wheaton  
Edgar   1823 Clark Paris  
Edwards   1814 Gallatin, Madison (IT) Albion  
Effingham   1831 Crawford, Fayette Effingham  
Fayette   1821 Bond, Clark, Crawford, Jefferson Vandalia  
Ford   1859 unorganized (Vermilion) Paxton  
Franklin   1818* Gallatin, White Benton  
Fulton   1823 Pike Lewistown  
Gallatin   1812 Randolph (IT) Shawneetown  
Greene   1821 Madison Carrollton  
Grundy   1841 LaSalle Morris  
Hamilton   1821 White McLeansboro  
Hancock   1825 Pike Carthage  
Hardin   1839 Gallatin, Pope Elizabethtown  
Henderson   1841 Warren Oquawka Gail Meyer Kilgore
Henry   1825 unorganized (Fulton) Cambridge  
Iroquois   1833 unorganized (Vermilion) Watseka  
Jackson   1816 Johnson, Randolph Murphysboro  
Jasper   1831 Clay, Crawford Newton  
Jefferson   1819 Edwards, White Mt. Vernon  
Jersey   1839 Greene Jerseyville  
JoDaviess   1827 Henry, Putnam Galena Jeanne Hicks
Johnson   1812 Randolph (IT) Vienna  
Kane   1836 unorganized (LaSalle), Cook Geneva  
Kankakee   1853 Ford, Iroquois, Will Kankakee  
Kendall   1841 LaSalle, Kane Yorkville  
Knox   1825 unorganized (Fulton), Fulton, Henry Galesburg  
Knox     Northwest Territory extinct  

Lake Rootsweb

Lake Onsite

  1839 McHenry Waukegan Adoptable
LaSalle   1831 Putnam, unorganized (Tazewell) Ottawa  
Lawrence   1821 Crawford, Edwards Lawrenceville  
Lee   1839 Ogle Dixon  
Livingston   1837 LaSalle, McLean, unorganized (Vermilion?) Pontiac  
Logan   1839 McLean, Sangamon, Tazewell Lincoln

Gail Meyer Kilgore

Macon   1829 unorganized (Shelby) Decatur  
Macoupin   1829 unorganized (Greene), Madison Carlinville  
Madison   1812 St. Clair (IT) Edwardsville  
Marion   1823 Fayette, Jefferson Salem  
Marshall   1839 Putnam, LaSalle Lacon  
Mason   1841 Menard, Tazewell Havana  
Massac   1843 Johnson, Pope Metropolis  
McDonough   1826 Schuyler Macomb  
McHenry   1836 Cook, unorganized (LaSalle) Woodstock  
McLean   1830 Tazewell, unorganized (Tazewell) Bloomington  
Menard   1839 Sangamon Petersburg  
Mercer   1825 unorganized (Pike) Aledo  
Monroe   181 Randolph, St. Clair Waterloo  
Montgomery   1821 Bond, Madison Hillsboro  
Morgan   1823 unorganized (Greene), Sangamon Jacksonville  
Moultrie   1843 Macon, Shelby Sullivan  
Ogle   1836 Jo Daviess, unorganized (LaSalle) Oregon Gail Meyer Kilgore
Peoria   1825 Fulton, unorganized (Fulton) Peoria  
Perry   1827 Jackson, Randolph Pickneyville  
Piatt   1841 DeWitt, Macon Monticello  
Pike   1821 Madison Pittsfield  
Pope   1816 Gallatin, Johnson Golconda  
Pulaski   1843 Alexander, Johnson Mound City  
Putnam   1825 unorganized (Edgar, Fulton) Hennepin  
Randolph   1795 St. Clair, Northwest Territory Chester  
Richland   1841 Clay, Lawrence Olney  
Rock Island   1831 Jo Daviess Rock Island  
Saline   1847 Gallatin Harrisburg  
Sangamon   1821 Bond, Madison Springfield  
Schuyler   1825 Pike, unorganized (Pike) Rushville  
Scott   1839 Morgan Winchester  
Shelby   1827 Fayette Shelbyville  
Stark   1839 Knox, Putnam Toulon  
St. Clair   1790 Northwest Territory Belleville  
Stephenson   1837 Jo Daviess, Winnebago Freeport Gail Meyer Kilgore
Tazewell   1827 unorganized (Peoria), Fayette Pekin  
Union   1818 Johnson, Jackson Jonesboro  
Vermilion   1826 unorganized (Edgar) Danville  
Wabash   1824 Edwards Mount Carmel  
Warren   1825 unorganized (Pike) Monmouth  
Washington   1818 St. Clair Nashville  
Wayne   1819 Edwards Fairfield  
White   1815 Madison (IT) Carmi  
Whiteside   1836 Jo Daviess, Henry Morrison  
Will   1836 Cook, Iroquois Joliet  
Williamson   1839 Franklin Marion  Don Kelly
Winnebago   1836 JoDaviess, unorganized (LaSalle) Rockford  
Woodford   1841 McLean, Tazewell Eureka  


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