The Library has a vast amount of information pertaining to Illinois history. This page (and its subpages) contains information specific to Illinois counties, particularly county-specific call numbers, subject headings, histories, and atlases. However, you can also find plenty of information about Illinois under the tabs for Using the Library, United States, and Web Resources.
In particular, you can find other county-specific information by looking for:
To find information about a specific county, look for it in one of the lists below, or use the dropdown menu to browse by first letter. (If you are unsure in which county your city or town is located, please consult this Wikipedia list of Illinois cities.)
On each county's page, we have provided a sample of resources our library holds. You can investigate further using the call numbers and links provided to expand your search.
Three online resources that will be especially useful are:
This link opens in a new windowAdams County (Quincy)
Alexander County (Cairo)
B
Bond County (Greenville)
Boone County (Belvidere)
Brown County (Mount Sterling)
Bureau County (Princeton)
Calhoun County (Hardin)
Carroll County (Mount Carroll)
Cass County (Virginia)
Champaign County (Urbana)
Christian County (Taylorville)
Clark County (Marshall)
Clay County (Louisville)
Clinton County (Carlyle)
Coles County (Charleston)
Cook County (Chicago)
Crawford County (Robinson)
Cumberland County (Toledo)
D
DeKalb County (Sycamore)
De Witt County (Clinton)
Douglas County (Tuscola)
DuPage County (Wheaton)
E
Edgar County (Paris)
Edwards County (Albion)
Effingham County (Effingham)
F
Fayette County (Vandalia)
Ford County (Paxton)
Franklin County (Benton)
Fulton County (Lewistown)
G
Gallatin County (Shawneetown)
Greene County (Carrollton)
Grundy County (Morris)
Hamilton County (McLeansboro)
Hancock County (Carthage)
Hardin County (Elizabethtown)
Henderson County (Oquawka)
Henry County (Cambridge)
Iroquois County (Watseka)
Jackson County (Murphysboro)
Jasper County (Newton)
Jefferson County (Mount Vernon)
Jersey County (Jerseyville)
Jo Daviess County (Galena)
Johnson County (Vienna)
K
Kane County (Geneva)
Kankakee County (Kankakee)
Kendall County (Yorkville)
Knox County (Galesburg)
Lake County (Waukegan)
LaSalle County (Ottawa)
Lawrence County (Lawrenceville)
Lee County (Dixon)
Livingston County (Pontiac)
Logan County (Lincoln)
Macon County (Decatur)
Macoupin County (Carlinville)
Madison County (Edwardsville)
Marion County (Salem)
Marshall County (Lacon)
Mason County (Havana)
Massac County (Metropolis)
McDonough County (Macomb)
McHenry County (Woodstock)
McLean County (Bloomington)
Menard County (Petersburg)
Mercer County (Aledo)
Monroe County (Waterloo)
Montgomery County (Hillsboro)
Morgan County (Jacksonville)
Moultrie County (Sullivan)
Ogle County (Oregon)
Peoria County (Peoria)
Perry County (Pinckneyville)
Piatt County (Monticello)
Pike County (Pittsfield)
Pulaski County (Mound City)
Putnam County (Hennepin)
Randolph County (Chester)
Richland County (Olney)
Rock Island County (Rock Island)
Saint Clair County (Belleville)
Saline County (Harrisburg)
Sangamon County (Springfield)
Schuyler County (Rushville)
Scott County (Winchester)
Shelby County (Shelbyville)
Stark County (Toulon)
Stephenson County (Freeport)
Tazewell County (Pekin)
Union County (Jonesboro)
Vermilion County (Danville)
Wabash County (Mount Carmel)
Warren County (Monmouth)
Washington County (Nashville)
Wayne County (Fairfield)
White County (Carmi)
Whiteside County (Morrison)
Will County (Joliet)
Williamson County (Marion)
Winnebago County (Rockford)
Woodford County (Eureka)
These listings correspond to the system used by the Illinios Regional Archives Depository System.
Northeastern Illinois
Cook
Northern Illinois
Boone
Bureau
Carroll
DeKalb
DuPage
Jo Daviess
Kane
Kendall
Lake
LaSalle
Lee
McHenry
Ogle
Putnam
Stephenson
Whiteside
Will
Winnebago
Western Illinois
Adams
Brown
Calhoun
Fulton
Hancock
Henderson
Henry
Knox
McDonough
Mercer
Peoria
Pike
Rock Island
Schuyler
Stark
Warren
East Central (Illinois State)
Champaign
DeWitt
Ford
Grundy
Iroquois
Kankakee
Livingston
Logan
Marshall
McLean
Piatt
Tazewell
Vermillion
Woodford
Central (University of Illinois, Springfield)
Bond
Cass
Christian
Fayette
Greene
Jersey
Macon
Macoupin
Mason
Menard
Montgomery
Morgan
Sangamon
Scott
Southeastern (Eastern Illinois)
Clark
Clay
Coles
Crawford
Cumberland
Douglas
Edgar
Edwards
Effingham
Jasper
Lawrence
Marion
Moultrie
Richland
Shelby
Wabash
Wayne
Southern Illinois
Alexander
Bond
Clinton
Franklin
Gallatin
Hamilton
Hardin
Jackson
Jefferson
Johnson
Madison
Massac
Monroe
Perry
Pope
Pulaski
Randolph
Saline
St. Clair
Union
Washington
White
Williamson
