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  1. Decatur, Illinois - Wikipedia

    Decatur (/ dɪˈkeɪtər / dih-KAY-tər) is the largest city in Macon County, Illinois, United States, and its county seat. The city was founded in 1829 and is situated along the Sangamon River and Lake …

  2. Decatur | History, Economy & Education | Britannica

    Decatur, city, seat (1829) of Macon county, central Illinois, U.S. It lies along a bend in the Sangamon River (there dammed to form Lake Decatur), about halfway between Springfield and Champaign. …

  3. Decatur (Macon County, IL) - roadsidethoughts.com

    Oct 27, 2025 · Local information and community profile for Decatur (Macon County, State of Illinois). Contains: population, area codes, zip codes, time zone, official websites, pronunciation, elevation …

  4. Decatur, Illinois Population 2025

    Decatur is a city located in Macon County, Illinois. Decatur has a 2025 population of 68,763 . It is also the county seat of Macon County . Decatur is currently declining at a rate of -0.09% annually and its …

  5. Where is Decatur, IL, USA? | Location Map of Decatur, Illinois

    Jan 12, 2025 · Where is Decatur Located? Decatur is a city located in the Macon County of Illinois, United States. It lies between 41.3580 Degrees North latitudes and 93.5574 Degrees West longitudes.

  6. Decatur, IL - Geographic Facts & Maps - MapSof.net

    Decatur is a city located in the county of Macon in the U.S. state of Illinois. Its population at the 2010 census was 76,122 and a population density of 626 people per km².

  7. Macon County, Illinois - Wikiwand

    Oct 23, 2024 · Macon County is a county located in the U.S. state of Illinois. According to the 2020 United States Census, it had a population of 103,998. Its county seat and ...

  8. Decatur Map - Macon, Illinois, USA - Mapcarta

    Decatur is a city in Macon county, Illinois. There are many examples of Frank Lloyd Wright's influence on the Prairie Style Architecture in Decatur.

  9. Decatur IL - City hall, mayor, stats, schools, attractions, and more

    What county is Decatur IL in? Where is Decatur, Illinois ? Decatur lies in Macon County and is situated in the central region of the United States. It is located in the central part of Illinois, approximately 40 …

  10. Decatur, IL County | County States Wiki | Fandom

    Decatur, Illinois, is located in Macon County, where it serves as the county seat. Here's an overview: Location: Central Illinois, along the Sangamon River and Lake Decatur. Population: Approximately …