Lat/Long: 39.3000, -90.4000
In 1821, commissioners appointed for the purpose chose a site for the county seat of Greene County and established the town of Carrollton there. Residents incorporated Carrollton as a town under provisions of the general municipal act of 1831. In 1847, the Illinois General Assembly dissolved the original town corporation, and in 1861, it again incorporated Carrollton as a town.
History of Greene County, Illinois (Chicago: Donnelley, Gassette & Loyd, 1879), 252-53; “An Act to Incorporate the Inhabitants of Such Towns as May Wish to be Incorporated,” 12 February 1831, Laws of Illinois (1831), 82-87; "An Act to Abolish the Corporation of the Town of Carrollton," 28 February 1847, Private and Special Laws of Illinois (1847), 210; "An Act to Incorporate the Town of Carrollton," 21 February 1861, Private Laws of Illinois (1861), 563-69.