Illinois State Route 84 is the main surface route through eastern Rock Island County. Much of the northern portion of the route runs along the eastern banks of the Mississippi River. IL St Rt 84 passes through the following towns in Rock Island County. Cordova
NB IL St Rt 84 at the Henry/Rock Island County Line. NB IL St Rt 84 at the Henry/Rock Island County Line. NB IL St Rt 84 near Carbon Cliff. A junction marker on WB IL St Rt 5/92. A BGS on WB IL St Rt 5/92. NB IL St Rt 84/WB IL St Rt 92 in Silvis. NB IL St Rt 84/WB IL St Rt 92 at Silvis. A junction marker on NB IL St Rt 84/WB IL St Rt 92. NB IL St Rt 84 north of Hampton. NB IL St Rt 84 south of I-80. A BGS on WB I-80. A BGS on WB I-80. SB IL St Rt 84 in Port Byron. A Rock Island County mile marker. SB IL St Rt 84 south of Cordova. SB IL St Rt 84 north of Cordova. SB IL St Rt 84 near Cordova. SB IL St Rt 84 at the Whiteside/Rock Island County Line.
