Illinois State Route 48 is one of the main surface routes through the Decatur Metro Area. This route enters Macon County from the southwest and exits into De Witt County on the northeast end. IL St Rt 48 passes through the following towns in Macon County. Blue Mound Boody
SB IL St Rt 48 near Boody. A BGS on SB U.S. Rt. 51. SB IL St Rt 48 at U.S. Rt. 51. A mile marker in Macon County for IL St Rt 48. SB IL St Rt 48 on the southside of Decatur. NB IL St Rt 48 near the Sangamon River and Norkfolk Southern Railroad. NB IL St Rt 48 at Millikin University. NB IL St Rt 48/SB IL St Rt 121 near BUSN. U.S. Rt. 51 in Decatur. SB IL St Rt 48 on the northeast side of Decatur. A BGS on EB I-72. NB IL St Rt 48 near Oreana. NB IL St Rt 48 south of Argenta. NB IL St Rt 48 near Newburg. NB IL St Rt 48 near Cisco. A Macon County mile maker near Cisco. A junction marker on IL St Rt 32. NB IL St Rt 48 near I-72. The lane on the left is in Macon County. The right lane is in Piatt County. A BGS on WB I-72.