Illinois State Route 8 runs east-west across the central portion of Peoria County. This highway runs along the southside of Interstate 74. IL St Rt 8 passes through the following towns in Peoria County. Peoria
Edwards Oak Hill Southport Elmwood IL St Rt 8 is multi-plexed in Peoria County. Illinois State Route 116, at the Cedar Street Bridge in Peoria.
A sign at the foot of the Cedar Street Bridge in Peoria. WB IL St Rt 8/116; NB IL St Rt 29 at the Peoria/Tazewell County Line. A junction marker on WB IL St Rt 8/116; NB IL St Rt 29. WB IL St Rt 8/116 on the southside of Peoria. A Peoria County mile marker.