In 1885, when the east-west line of the Illinois Central Railroad (ICRR) arrived in Choctaw County, company engineers created Ackerman and named it for one of the ICRR officials. In the same year, the state legislature made upstart Ackerman a county seat; the other was Chester. In 1923 the two districts were consolidated, and Ackerman became the lone county seat. The two-story Moderne courthouse, which replaced an 1887 structure, is an austere, flat-roofed, poured-in-place concrete building, with a monumental five-bay central portion, lower two-story wings, and setback window jambs. A stylized eagle above the entrance and simplified antefixes along the cornice are the only ornament.
Nearby at 393 E. Main Street, the two-story, poured-in-place concrete Choctaw County High School (1941, N. W. Overstreet and A. H. Town) combines modern and Moderne features, the latter in the tall entrance bay with splayed jambs.