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
EB IL St Rt 10 at the Logan/De Witt County Line. EB IL St Rt 10 west of Hallsville. EB IL St Rt 10 east of Hallsville. WB IL St Rt 10 east of Clinton. A BGS on NB U.S. Rt. 51. A junction marker on EB IL St Rt 54. 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.
