Illinois State Route 64 is a east-west highway across Central De Kalb County. This passes through mostly rural areas. IL St Rt 64 passes through the following town in De Kalb County. Sycamore
A junction marker on NB IL St Rt 23. A junction marker on SB IL St Rt 23/WB IL St Rt 64. NB IL St Rt 23/EB IL St Rt 64 in Sycamore. NB IL St Rt 23/EB IL St Rt 64 in Downtown Sycamore. EB IL St Rt 64 east of Downtown Sycamore. EB IL St Rt 64 east of Sycamore. A De Kalb County mile marker. EB IL St Rt 64 near the De Kalb/Kane County Line.
