Illinois GenWeb County Table

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County NameMapDate of
Formation
Parent CountyCounty SeatCounty Coordinators
Adams1825PikeQuincyDennis Partridge
Alexander1819UnionCairoNorma Hass and Deborah Cox
Bond1818MadisonGreenvilleNorma Hass
Boone1836WinnebagoBelvidereJoe Markovich
Brown1837SchuylerMount SterlingDennis Partridge
Bureau1837PutnamPrincetonADOPTABLE
Calhoun1825PikeHardinADOPTABLE
Carroll1839Jo DaviessMount CarrollADOPTABLE
Cass1837MorganVirginiaRebecca Maloney
Champaign1833VermilionUrbanaADOPTABLE
Christian1839Dane (Montgomery, Sangamon, Shelby)TaylorvilleMorgan Edward Johnson
Clark1819CrawfordMarshallJoy Fisher
Clay1824Crawford, Fayette, WayneLouisvilleADOPTABLE
Clinton1824Bond, WashingtonCarlyleLarry Jones
Coles1830Clark, EdgarCharlestonADOPTABLE
Cook1831PutnamChicagoDennis Partridge
Crawford1816 *Edwards (IT)RobinsonMary Kozy
Cumberland1843ColesToledoMichael L. Hebert
Dane.1839Montgomery, Sangamon, ShelbyExtinct-1840
now Christian
See Christian County
DeKalb1837KaneSycamoreADOPTABLE
DeWitt1839Macon, McLeanClintonPat Geary
Douglas1859ColesTuscolaADOPTABLE
DuPage1839CookWheatonADOPTABLE
Edgar1823ClarkParisMaggie Stewart & Joy Fisher
Edwards1814*Gallatin, Madison (IT)AlbionADOPTABLE
Effingham1831Crawford, FayetteEffinghamADOPTABLE
Fayette1821Bond, Clark, Crawford, JeffersonVandaliaPenny Lewis
Ford1859unorganized (Vermilion)PaxtonADOPTABLE
Franklin1818*Gallatin, WhiteBentonSusan Dorris
Fulton1823PikeLewistownJulie Tarr
Gallatin1812*Randolph (IT)ShawneetownSusan Dorris
Greene1821MadisonCarrolltonADOPTABLE
Grundy1841LaSalleMorrisDennis Partridge
Hamilton1821WhiteMcLeansboroMichael L. Hebert
Hancock1825PikeCarthageADOPTABLE
Hardin1839Gallatin, PopeElizabethtownADOPTABLE
Henderson1841WarrenOquawkaJoe Markovich
Henry1825unorganized (Fulton)CambridgeJoe Markovich
Iroquois1833unorganized (Vermilion)WatsekaConcetta Phillipps
Jackson1816*Johnson, RandolphMurphysboroNorma Hass and Melissa McCord
Jasper1831Clay, CrawfordNewtonADOPTABLE
Jefferson1819Edwards, WhiteMt. VernonSandy Bauer
Jersey1839GreeneJerseyvilleDennis Partridge
JoDaviess1827Henry, PutnamGalenaADOPTABLE
Johnson1812*Randolph (IT)ViennaNorma Hass and Jackie Webb
Kane1836unorganized (LaSalle), CookGenevaADOPTABLE
Kankakee1853Ford, Iroquois, WillKankakeeConcetta Phillipps
Kendall1841LaSalle, KaneYorkvilleADOPTABLE
Knox1825unorganized (Fulton), Fulton, HenryGalesburgADOPTABLE
Lake1839McHenryWaukeganJoe Markovich
LaSalle1831Putnam, unorganized (Tazewell)OttawaADOPTABLE
Lawrence1821Crawford, EdwardsLawrencevilleMary Kozy
Lee1839OgleDixonJoe Markovich
Livingston1837LaSalle, McLean, unorganized (Vermilion?)PontiacADOPTABLE
Logan1839McLean, Sangamon, TazewellLincolnCheryl Rothwell
Macon1829unorganized (Shelby)DecaturCheryl Rothwell
Macoupin1829unorganized (Greene), MadisonCarlinvilleNorma Hass
Madison1812*St. Clair (IT)EdwardsvilleBev Bauser
Marion1823Fayette, JeffersonSalemADOPTABLE
Marshall1839Putnam, LaSalleLaconADOPTABLE
Mason1841Menard, TazewellHavanaADOPTABLE
Massac1843Johnson, PopeMetropolisSusan Dorris
McDonough1826SchuylerMacombADOPTABLE
McHenry1836Cook, unorganized (LaSalle)WoodstockJoe Markovich
McLean1830Tazewell, unorganized (Tazewell)BloomingtonCarol Genung
Menard1839SangamonPetersburgADOPTABLE
Mercer1825unorganized (Pike)AledoJoe Markovich
Monroe1816*Randolph, St. ClairWaterlooDennis Partridge
Montgomery1821Bond, MadisonHillsboroADOPTABLE
Morgan1823unorganized (Greene), SangamonJacksonvilleDennis Partridge
Moultrie1843Macon, ShelbySullivanADOPTABLE
Ogle1836Jo Daviess, unorganized (LaSalle)OregonADOPTABLE
Peoria1825Fulton, unorganized (Fulton)PeoriaADOPTABLE
Perry1827Jackson, RandolphPickneyvilleADOPTABLE
Piatt1841DeWitt, MaconMonticelloDee Lund
Pike1821MadisonPittsfieldADOPTABLE
Pope1816*Gallatin, JohnsonGolcondaGinger Hayes
Pulaski1843Alexander, JohnsonMound CityNorma Hass and Deborah Cox
Putnam1825unorganized (Edgar, Fulton)HennepinADOPTABLE
Randolph1795*St. Clair, Northwest TerritoryChesterDennis Partridge
Richland1841Clay, LawrenceOlneyADOPTABLE
Rock Island1831Jo DaviessRock IslandJoe Markovich
Saline1847GallatinHarrisburgSusan Dorris
Sangamon1821Bond, MadisonSpringfieldMichael King
Schuyler1825Pike, unorganized (Pike)RushvilleDennis Partridge
Scott1839MorganWinchesterADOPTABLE
Shelby1827FayetteShelbyvilleADOPTABLE
Stark1839Knox, PutnamToulonADOPTABLE
St. Clair1790*Northwest TerritoryBellevilleDiane Walsh
Stephenson1837Jo Daviess, WinnebagoFreeportJoe Markovich
Tazewell1827unorganized (Peoria), FayettePekinJoe Markovich
Union1818 *Johnson, JacksonJonesboroNorma Hass and Melissa McCord
Vermilion1826unorganized (Edgar)DanvilleJoe Markovich
Wabash1824EdwardsMount CarmelADOPTABLE
Warren1825unorganized (Pike)MonmouthADOPTABLE
Washington1818*St. ClairNashvilleADOPTABLE
Wayne1819EdwardsFairfieldSandy Bauer
White1815*Madison (IT)CarmiCindy Birk-Conley
Whiteside1836Jo Daviess, HenryMorrisonJoe Markovich
Will1836Cook, IroquoisJolietDennis Partridge
Williamson1839FranklinMarionSusan Dorris
Winnebago1836JoDaviess, unorganized (LaSalle)RockfordJoe Markovich
Woodford1841McLean, TazewellEurekaCarol Genung
DEFINITIONS: *county formed before Illinois became a state
(IT) Illinois Territory