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English: This is a locator map showing Douglas County in Illinois. For more information, see Commons:United States county locator maps. Date: 12 February 2006: Source:
Douglas County is a county located in the U.S. state of Illinois. As of the 2020 United States census , the population was 19,740. [ 1 ] The county seat is Tuscola .
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This page was last edited on 30 December 2013, at 05:53 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us
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Populated places in Douglas County, Illinois (4 C) Protected areas of Douglas County, Illinois (1 P) Pages in category "Geography of Douglas County, Illinois"
Knox would later become a county in Indiana and is unrelated to the current Knox County in Illinois, while St. Clair would become the oldest county in Illinois. 15 counties had been created by the time Illinois achieved statehood in 1818. The last county, Ford County, was created in 1859.