Illinois State Route 23 runs east-west across the center of De Kalb County. This is one of the main highways in De Kalb and the county. IL St Rt 23 passes through the following town in De Kalb County. De Kalb
Sycamore
IL St Rt 23 is multi-plexed in De Kalb County. Illinois State Route 64, at Sycamore. Illinois State Route 72, from near Genoa to near New Lebanon. IL St Rt 23 intersects the following highway in De Kalb County. U.S. Rt. 30, near Waterman.
NB IL St Rt 23/EB IL St Rt 64 in Downtown Sycamore. NB IL St Rt 23/EB IL St Rt 64 in Sycamore. A junction marker on SB IL St Rt 23/WB IL St Rt 64. NB IL St Rt 23 on the southside of Sycamore. NB IL St Rt 23 on the northside of De Kalb. NB IL St Rt 23 at IL St Rt 38. This intersection has a rail crossing in the middle of it. A junction marker on EB IL St Rt 38. NB IL St Rt 23 south of Downtown De Kalb. NB IL St Rt 23 on the southside of De Kalb. A BGS on EB I-88. A BGS on EB I-88. A BGS on WB I-88/IL St Rt 110. NB IL St Rt 23 near I-88. NB IL St Rt 23 near Elva. NB IL St Rt 23 near Mc Girr. NB IL St Rt 23 near Waterman. NB IL St Rt 23 near Shabonna Grove. A De Kalb County mile marker. NB IL St Rt 23 near Rollo. NB IL St Rt 23 at the La Salle/De Kalb County Line.
