Statehood: Dec. 3, 1818 Living in IL Today Population
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Adams Co. Alexander Co. Bond Co. Boone Co. Brown Co. Bureau Co. Calhoun Co. Carroll Co. Cass Co. Champaign Co. Christian Co. Clark Co. Clay Co. Clinton Co. Coles Co. Cook Co. Crawford Co. Cumberland Co. DeKalb Co. DeWitt Co. Douglas Co. DuPage Co. Edgar Co. Edwards Co. Effingham Co. Fayette Co. Ford Co. Franklin Co. Fulton Co. Gallatin Co. Greene Co. Grundy Co. Hamilton Co. Hancock Co. Hardin Co. Henderson Co. Henry Co. Iroquois Co. Jackson Co. Jasper Co. Jefferson Co. Jersey Co. Jo Daviess Co. Johnson Co. Kane Co. Kankakee Co. Kendall Co. Knox Co. Lake Co. LaSalle Co. Lawrence Co. Lee Co. Livingston Co. Logan Co. Macon Co. Macoupin Co. Madison Co. Marion Co. Marshall Co. Mason Co. Massac Co. McDonough Co. McHenry Co. McLean Co. Menard Co. Mercer Co. Monroe Co. Montgomery Co. Morgan Co. Moultrie Co. Ogle Co. Peoria Co. Perry Co. Piatt Co. Pike Co. Pope Co. Pulaski Co. Putnam Co. Randolph Co. Richland Co. Rock Island Co. Saline Co. Sangamon Co. Schuyler Co. Scott Co. Shelby Co. Stark Co. St. Clair Co. Stephenson Co. Tazewell Co. Union Co. Vermilion Co. Wabash Co. Warren Co. Washington Co. Wayne Co. White Co. Whiteside Co. Will Co. Williamson Co. Winnebago Co. Woodford Co.
Census Statistics
Many people begin their genealogy research starting with the widely available U.S. census records. The U.S. began taking a census every 10 years starting in 1790. The records from 1790 to 1840 contain only the name of the head of the household and limited information about the other individuals in the residence. That changed in 1850 when the census began listing each member of the household individually.
Look how Illinois has grown! The following table details the population of the state from it's first census through 1940. The 1940 census is the last year currently available for genealogy use. The 1950 census won't be available until 2022. Information is shown for 1890, but that census was mostly lost due to a fire and mishandling in the 1920's and 1930's.
If the population figure below is underlined click on it to be taken to a free online version of the census
1790 NO 1800 NO 1810 12,282 1820 55,211 1830 157,445 1840 476,183 1850 851,470 1860 1,711,951
1870 2,539,891 1880 3,077,871 1890 3,826,352 1900 4,821,550 1910 5,638,591 1920 6,485,280 1930 7,630,654 1940 7,897,241

Helpful Links
This is where you get to help out you're fellow researchers!
If you know of a great Illinois genealogy site, click below to send us an email with the url.
Please provide a short description of whats on the site. We'll post it in the list below.
The links below are provided by your fellow researchers. They're ones they've found to be useful.
LDS Searchable Database
LDS Searchable Database
LDS Searchable Database
LDS Searchable Database
LDS Images Database
Searchable Marriage, Death and Other Records
LDS Searchable Database
LDS Searchable Database
Official State of Illinois Site
Click here to send an email with a new link.  Don't forget a description!

If you know of a really useful non State or County specific website, click below to send us an email with the url.
Please provide a short description of whats on the site. We'll post it in the list below.
Interactive Research Tool
Searchable Passenger Database
Grave Registration and Search Website
New Link Click the link to the left to send us a new website url

If you still have family living in Illinois today, they may live in one of the larger cities of: Aurora, Chicago, Joliet, Naperville, Peoria, Rockford or Springfield. Chances are their ancestors came from Germany, Ireland, Poland, England or Italy. Their religion is likely one of the Christian denominations.

They may work at one of the companies based in Illinois, like Archer Daniels Midland, Boeing, Caterpillar, State Farm Insurance or Walgreen. Some of them may enjoy eating an Italian beef sandwich or deep dish pizza. They probably root for the Chicago Cubs or Bears, Chicago White Sox, Chicago Bulls or the Fighting Illini.
You might find them sailing on Lake Michigan or visiting Lincolns' Home.

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email Updated 9/14/2015
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