Illinois Census Records Online
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1680 - 1763 The State of Illinois was under the control of France.
1763 - 1783 The State of Illinois was controlled by Great Britain.
1800 - 1809 The State of Illinois was considered part of Indiana Territory.
1809 The State of Illinois became it's own territory.
Territorial censuses were taken in 1810 (as Indiana Territory) and in 1818 (as Illinois Territory). Only Randolph County survives for 1810.
Illinois Federal Census Records begin in 1820 and were enumerated every ten years, and include: 1820, 1830, 1840, 1850, 1860, 1870, 1880, 1900, 1910, 1920 and 1930.
Soundex Code Indexes for the Illinois Federal Census Records are available on microfilm for census years: 1880, 1900, 1910, and 1920.
1890 Illinois Federal Census Schedules, including the Veterans and Widows census, were completely destroyed by fire with the exception of McDonough County(partial).
Illinois state census and includes the following years: 1820, 1825, 1830, 1835, 1840, 1845, 1855, 1865.
The Illinois territorial census and Illinois state census records are located at:
Illinois State Archives
Archives Building
Springfield, Illinois 62756
Statewide Illinois Census Records Available Online Illinois Census Records
- Early Illinois Settlers
- 1732 French Census of Illinois
- 1787 Census of Kaskaskia
- 1787 French Census of Prairie Du Rocher
- 1807 Indiana Territory Census--covers all of Southern Illinois
- 1818 Illinois Territory Census
- 1820 Illinois State Census
- 1840 Illinois Census of Pensioners
- 1855 Illinois State Census
- 1880 Federal Census Search at Family Search
- Illinois Mortality Schedules
Adams County Illinois Census Records
Adams County was formed in 1825, from Pike County, County Seat - Quincy.
Adams County Illinois State Census Records
- 1865 Quincy, Illinois State Census, Page 218 - Adams County, Illinois
- 1865 Quincy, Illinois State Census, Page 219 - Adams County, Illinois
- 1865 Quincy, Illinois State Census, Page 238 - Adams County, Illinois
- 1865 Quincy, Illinois State Census, Page 239 - Adams County, Illinois
Adams County Illinois Mortality Schedules
Alexander County Illinois Census Records
Alexander County was formed in 1819, from Union County, County Seat - Cairo.
Alexander County Illinois State Census Records
Alexander County Illinois Mortality Schedules
- 1850 Alexander County Illinois Mortality Schedule Images
- 1860 Alexander County Illinois Mortality Schedule Images
Bond County Illinois Census Records
Bond County was formed in 1818, from Madison County, County Seat - Greenville.
Bond County Illinois Territory Census Records
Bond County Illinois State Census Records
Bond County Illinois Mortality Schedules
- 1850 Bond County Illinois Mortality Schedule Images
- 1860 Bond County Illinois Mortality Schedule Images
Boone County Illinois Census Records
Boone County was formed in 1836, from Winnebago County, County Seat - Belvidere.
Boone County Illinois State Census Records
- 1855 Boone County Illinois Census Index - All Townships
- 1855 Boone County Illinois Census Index - Bonus Township
- 1855 Boone County Illinois Census Index - Boone Township
- 1855 Boone County Illinois Census Index - Caledonia Township
- 1855 Boone County Illinois Census Index - Floria Township
- 1855 Boone County Illinois Census Index - Leroy Township
- 1855 Boone County Illinois Census Index - Manchester Township
- 1855 Boone County Illinois Census Index - Spring Township
- 1865 Boone County Illinois Census Index
Boone County Illinois Mortality Schedules
Brown County Illinois Census Records
Brown County was formed in 1837, from Schuyler County, County Seat - Mount Sterling.
Brown County Illinois Military Census Records
Bureau County Illinois Census Records
Bureau County was formed in 1837, from Putnam County, County Seat - Princeton.
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Calhoun County Illinois Census Records
Calhoun County was formed in 1825, from Pike County, County Seat - Hardin.
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Caroll County Illinois Census Records
Carroll County was formed in 1839, from Jo Daviess County, County Seat - Mount Carroll.
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Cass County Illinois Census Records
Cass County was formed in 1837, form Morgan County, County Seat - Virginia.
Cass County Illinois Mortality Schedules
Champaign County Illinois Census Records
Champaign County was formed in 1833, from Vermilion County, County Seat - Urbana.
Cass County Illinois Mortality Schedules
Christian County Illinois Census Records
Christian County was formed in 1839, from Dane, Montgomery, Sangamon and Shelby Counties, County Seat - Taylorville.
Christian County Illinois Mortality Schedules
- 1850 Christian County Illinois Mortality Schedule Images
- 1860 Christian County Illinois Mortality Schedule Images
Clark County Illinois Census Records
Clark County was formed in 1819, from Crawford County, County Seat - Marshall.Clark County Illinois State Census Records
Clark County Illinois Mortality Schedules
Clay County Illinois Census Records
Clay County was formed in 1824, from Crawford, Fayette, and Wayne Counties, County Seat - Louisville.
Clay County Illinois Mortality Schedules
Clinton County Illinois Census Records
Clinton County was formed in 1824 from Bond and Washington, County Seat - Carlyle.
Clinton County Illinois State Census Records
- 1825 Clinton County, Illinois State Census
- 1837 CENSUS FOR TOWN OF CARLYLE
- 1862 Clinton County Illinois Military Census
- 1865 Clinton County Census (Partial)
Clinton County Illinois Mortality Schedules
Coles County Illinois Census Records
Coles County was formed in 1830 from Clark and Edgar, County Seat - Charleston.
Coles County Illinois Military Census Records
- 1862-1863 Coles County Illinois Military Census - (Militia Rolls)
Cook County Illinois Census Records
Cook County was formed in 1831 from Putnam County, County Seat - Chicago.
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Crawford County Illinois Census Records
Cumberland County Illinois Census Records
Cumberland County was formed in 1843 from Coles County, County Seat - Toledo.
Cumberland County Illinois State Census Records
- 1855 State Census Cumberland County, Illinois Census Excerpts
- 1855 Cumberland County Illinois State Census Union Township Page 2 and 3
- 1862-1863 Coles County Illinois Military Census - (Militia Rolls)
Dekalb County Illinois Census Records
DeKalb County was formed in 1837 from Kane County, County Seat - Sycamore.
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Dewitt County Illinois Census Records
DeWitt County was formed in 1839 from Macon and McLean Counties, County Seat - Clinton.
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Douglas County Illinois Census Records
Douglas County was formed in 1859 from Coles County, County Seat - Tuscola.
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Dupage County Illinois Census Records
DuPage County was formed in 1839 from Cook County, County Seat - Wheaton.
DuPage County Illinois Mortality Schedules
Edgar County Illinois Census Records
Edgar County was formed in 1823 from Clark County, County Seat - Paris.
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Edwards County Illinois Census Records
Edwards County was formed in 1814 from Gallatin and Madison Counties, County Seat - Albion.
Edwards County Illinois State Census Records
Effingham County Illinois Census Records
Effingham County was formed in 1831 from Crawford and Fayette Counties, County Seat - Effingham.
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Fayette County Illinois Census Records
Fayette County was formed in 1821 from Bond, Clark, Crawford and Jefferson Counties, County Seat - Vandalia.
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Ford County Illinois Census Records
Ford County was formed in 1859 from Vermilion County, County Seat - Paxton.
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Franklin County Illinois Census Records
Franklin County was formed in 1818 from Gallatin and White Counties - County Seat - Benton.
Franklin County Illinois Territory Census Records
Franklin County Illinois State Census Records
Fulton County Illinois Census Records
Fulton County was formed in 1823 from Pike County, County Seat - Lewistown.
Fulton County Illinois State Census Records
Gallatin County Illinois Census Records
Gallatin County was formed in 1812 from Randolph County, County Seat - Shawneetown.
Gallatin County Illinois Territory Census Records
Gallatin County Illinois State Census Records
Greene County Illinois Census Records
Greene County was formed in 1821 from Madison County, County Seat - Carrollton.
Greene County Illinois State Census Records
Greene County Illinois Mortality Schedules
Grundy County Illinois Census Records
Grundy County was formed in 1841 from LaSalle County, County Seat - Morris.
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Hamilton County Illinois Census Records
Hamilton County was formed in 1821 from White County, County Seat - McLeansboro.
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Hancock County Illinois Census Records
Hancock County was formed in 1825 from Pike County, County Seat - Carthage.
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Hardin County Illinois Census Records
Hardin County was formed in 1839 from Gallatin and Pope Counties - County Seat - Elizabethtown.
Hardin County Illinois Mortality Schedules
Henderson County Illinois Census Records
Henderson County was formed in 1841 from Warren County, County Seat - Oquawka.
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Henry County Illinois Census Records
Henry County was formed in 1825 from Fulton County, County Seat - Cambridge.
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Iroquois County Illinois Census Records
Iroquois County was formed in 1833 from Vermilion County, County Seat - Watseka.
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Jackson County Illinois Census Records
Jackson County was formed in 1816 from Johnson and Randolph Counties - County Seat - Murphysboro.
Jackson County Illinois Territory Census Records
Jackson County Illinois State Census Records
Jackson County Illinois Mortality Schedules
Jasper County Illinois Census Records
Jasper County was formed in 1831 from Clay and Crawford Counties - County Seat - Newton.
Jasper County Illinois State Census Records
Jasper County Illinois Mortality Schedules
Jefferson County Illinois Census Records
Jefferson County was formed in 1819 from Edwards and White Counties - County Seat - Mt. Vernon.
Jersey County Illinois Census Records
Jersey County was formed in 1839 from Greene County, County Seat - Jerseyville.
Jersey County Illinois State Census Records
Jodaviess County Illinois Census Records
JoDaviess County was formed in 1827 from Henry and Putnam Counties - County Seat - Galena.
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Johnson County Illinois Census Records
Johnson County was formed in 1812 from Randolph County, County Seat - Vienna.
Johnson County Illinois Territory Census Records
Johnson County Illinois State Census Records
Johnson County Illinois Mortality Schedules
Kane County Illinois Census Records
Kane County was formed in 1836 from LaSalle and Cook Counties - County Seat - Geneva.
Kane County Illinois State Census Records
Kankakee County Illinois Census Records
Kankakee County was formed in 1853 from Ford, Iroquois and Will Counties - County Seat - Kankakee.
Kankakee County Illinois Mortality Schedules
Kendall County Illinois Census Records
Kendall County was formed in 1841 from LaSalle and Kane Counties - County Seat - Yorkville.
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Knox County Illinois Census Records
Knox County was formed in 1825 from Fulton and Henry Counties - County Seat - Galesburg.
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Lake County Illinois Census Records
Lake County was formed in 1839 from McHenry County, County Seat - Waukegan.
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Lasalle County Illinois Census Records
LaSalle County was formed in 1831 from Putnam, and Tazewell Counties, County Seat - Ottawa.
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Lawrence County Illinois Census Records
Lawrence County was formed in 1821 from Crawford and Edwards Counties, County Seat - Lawrenceville.
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Lee County Illinois Census Records
Lee County was formed in 1839 from Ogle County, County Seat - Dixon.
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Livingston County Illinois Census Records
Livingston County was formed in 1837 from LaSalle, McLean, and Vermilion? County Seat - Pontiac.
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Logan County Illinois Census Records
Logan County was formed in 1839 from McLean, Sangamon and Tazewell, County Seat - Lincoln.
Logan County Illinois State Census Records
Macon County Illinois Census Records
Macon County was formed in 1829 from Shelby, County Seat - Decatur.
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Macoupin County Illinois Census Records
Macoupin County was formed in 1829 from Greene and Madison Counties - County Seat - Carlinville.
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Madison County Illinois Census Records
Madison County was formed in 1812 from St. Clair County - County Seat - Edwardsville.
Madison County Illinois Territory Census Records
Marion County Illinois Census Records
Marion County was formed in 1823 from Fayette and Jefferson Counties - County Seat - Salem.
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Marshall County Illinois Census Records
Marshall County was formed in 1839 from Putnam and LaSalle Counties - County Seat - Lacon.
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Mason County Illinois Census Records
Mason County was formed in 1841 from Menard and Tazewell Counties - County Seat - Havana.
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Massac County Illinois Census Records
Massac County was formed in 1843 from Johnson and Pope Counties - County Seat - Metropolis.
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McDonough County Illinois Census Records
McDonough County was formed in 1826 from Schuyler County - County Seat - Macomb.
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McHenry County Illinois Census Records
McHenry County was formed in 1836 from Cook, and LaSalle Counties - County Seat - Woodstock.
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McLean County Illinois Census Records
McLean County was formed in 1830 from Tazewell County - County Seat - Bloomington.
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Menard County Illinois Census Records
Menard County was formed in 1839 from Sangamon County - County Seat - Petersburg.
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Mercer County Illinois Census Records
Mercer County was formed in 1825 from Pike County - County Seat - Aledo.
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Monroe County Illinois Census Records
Monroe County was formed in 1816 from Randolph and St. Clair County - County Seat - Waterloo.Monroe County Illinois Territory Census
Monroe County Illinois State Census
Montgomery County Illinois Census Records
Montgomery County was formed in 1821 from Bond and Madison Counties - County Seat - Hillsboro.
Montgomery County Illinois State Census Records
- 1825 Montgomery County, Illinois State Census Index
- 1855 Montgomery County, Illinois State Census Index
Morgan County Illinois Census Records
Morgan County was formed in 1823 from Greene and Sangamon Counties - County Seat - Jacksonville.
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Moultrie County Illinois Census Records
Moultrie County was formed in 1843 from Macon and Shelby Counties - County Seat - Sullivan.
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Ogle County Illinois Census Records
Ogle County was formed in 1836 from Jo Daviess and LaSalle Counties - County Seat - Oregon.
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Peoria County Illinois Census Records
Peoria County was formed in 1825 from Fulton County - County Seat - Peoria.
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Perry County Illinois Census Records
Perry County was formed in 1827 from Jackson and Randolph Counties - County Seat - Pickneyville.
Perry County Illinois State Census Records
- 1855 Perry County, Illinois State Census Township 4 South, Range 4 West
- 1855 Perry County, Illinois State Census Township 6 South, Range 3 West
Piatt County Illinois Census Records
Piatt County was formed in 1841 from DeWitt and Macon Counties - County Seat - Monticello.
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Pike County Illinois Census Records
Pike County was formed in 1821 from Madison County - County Seat - Pittsfield.
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Pope County Illinois Census Records
Pope County was formed in 1816 from Gallatin and Johnson Counties - County Seat - Golconda.
Pope County Illinois Territory Census Records
Pope County Illinois State Census Records
Pulaski County Illinois Census Records
Pulaski was formed in 1843 from Alexander and Johnson Counties - County Seat - Mound City.
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Putnam County Illinois Census Records
Putnam County was formed in 1825 from Edgar and Fulton Counties - County Seat - Hennepin.
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Randolph County Illinois Census Records
Randolph County was formed in 1795 from St. Clair County and Northwest Territory, County Seat - Chester.
Randolph County Illinois Territory Census Records
- 1787 Census of Kaskaskia
- 1807 Randolph County, Illinois Territory Census
- 1818 Randolph County, Illinois Territory Census
Randolph County Illinois State Census Records
- 1820 Randolph County, Illinois State Census
- 1825 Census of the Town of Kaskaskia, Illinois
- 1825 Census Index MARY PREC, Randolph County, Illinois
- 1825 State Census Index Plum Creek Prec. Randolph Co., IL
- 1825 Census Index of Prairie du Rocher, Randolph County, Illinois
- 1825 Census Index of Springfield, Randolph County, Illinois
- 1825 Census Index of Williamsburg, Randolph County, Illinois
Richland County Illinois Census Records
Richland County was formed in 1841 from Clay and Lawrence Counties, County Seat - Olney.
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Rock Island County Illinois Census Records
Rock Island County was formed in 1831 from Jo Daviess County, County Seat - Rock Island.
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Saline County Illinois Census Records
Saline County was formed in 1847 from Gallatin County, County Seat - Harrisburg.
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Sangamon County Illinois Census Records
Sangamon County was formed in 1821 from Bond and Madison County, County Seat - Springfield.
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Schuyler County Illinois Census Records
Schuyler County was formed in 1825 from Pike County, County Seat - Rushville.
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Scott County Illinois Census Records
Scott County was formed in 1839 from Morgan County, County Seat - Winchester.
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Shelby County Illinois Census Records
Shelby County was formed in 1827 from Fayette County, County Seat - Shelbyville.
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Stark County Illinois Census Records
Stark County was formed in 1839 from Knox and Putnam Counties, County Seat - Toulon.
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St. Clair County Illinois Census Records
St. Clair County was formed in 1790 from part of the Northwest Territory County Seat - Belleville.
St. Clair County Illinois Territory Census Records
Stephenson County Illinois Census Records
Stephenson County was formed in 1837 from Jo Daviess and Winnebago Counties, County Seat - Freeport.
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Tazewell County Illinois Census Records
Tazewell County was formed in 1827 from Peoria and Fayette Counties, County Seat - Pekin.
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Union County Illinois Census Records
Union County was formed in 1818 from Johnson and Jackson Counties, County Seat - Jonesboro.
Union County Illinois Territory Census Records
Union County Illinois State Census Records
- 1820 Union County, Illinois State Census
- 1835 INDEX TO CENSUS OF UNION COUNTY, ILLINOIS
- 1835 Union County, Illinois State Census
- 1855 Census for the City of Anna Union County, Illinois
Vermilion County Illinois Census Records
Vermilion County was formed in 1826 from Edgar County, County Seat - Danville.
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Wabash County Illinois Census Records
Wabash County was formed in 1824 from Edwards County, County Seat - Mount Carmel.
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Warren County Illinois Census Records
Warren County was formed in 1825 from Pike County, County Seat - Monmouth.
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Washington County Illinois Census Records
Washington County was formed in 1818 from St. Clair County, County Seat - Nashville.
Washington County Illinois Territory Census Records
Washington County Illinois State Census Records
- 1820 Washington County, Illinois State Census
- 1855 Washington County, Illinois State Census
- 1865 Washington County, Illinois State Census Elkton Precinct
- 1865 Washington County, Illinois State Census Pilot Knob Precinct
Wayne County Illinois Census Records
Wayne County was formed in 1819 from Edwards County, County Seat - Fairfield.
Wayne County Illinois State Census Records
- 1820 Wayne County Illinois State Census
- 1855 State Census Wayne Co., IL
- 1865 State Census Arrington Township, Wayne County, IL
- 1865 State Census Four Mile Township, Wayne County, IL
- 1865 State Census Hickory Township, Wayne County, IL
- 1865 State Census Ziff Township, Wayne County, IL
White County Illinois Census Records
White County was formed in 1815 from Madison County, County Seat - Carmi.
White County Illinois Territory Census Records
White County Illinois State Census Records
Whiteside County Illinois Census Records
Whiteside County was formed in 1836 from Jo Daviess and Henry Counties, County Seat -Morrison.
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Will County Illinois Census Records
Will County was formed in 1836 from Cook and Iroquois Counties, County Seat -Joliet.
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Williamson County Illinois Census Records
Williamson County was formed in 1839 from Franklin County, County Seat - Marion.
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Winnebago County Illinois Census Records
Winnebago County was formed in 1836 from JoDaviess and LaSalle Counties, County Seat - Rockford.
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Woodford County Illinois Census Records
Woodford County was formed in 1841 from McLean and Tazewell Counties, County Seat - Eureka.
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