Illinois State Route 10 is the main east-west surface highway across the center of De Witt County. IL St Rt 10 passes through the following towns in De Witt County. Hallsville Clinton
WB IL St Rt 10 east of Clinton. A BGS on NB U.S. Rt. 51. Junction sign on NB BUSN U.S. Rt. 51 in Clinton. WB IL St Rt 10/54 in Clinton. EB IL St Rt 10 near Lane. EB IL St Rt 10 near Weldon. A junction marker on NB IL St Rt 48.
