Illinois State Route 125 cuts east-west across the center on Cass County. This connects many towns along the way to each other and the county seat, Virginia. IL St Rt 125 passes through the following towns in Cass County. Philadelphia
Virginia
Bluff Springs Beardstown
IL St Rt 125 is not multi-plexed in Cass County. IL St Rt 125 intersects the following highways in Cass County. Illinois State Route 78, at Virginia.
WB IL St Rt 125 near the Cass/Sangamon County Line. A Cass County mile marker for IL St Rt 125. Most rural Illinois mile markers don't use the "IL". Although several in this area do. EB IL St Rt 125 near Virginia. EB IL St Rt 125 near Bluff Springs. A junction marker on SB U.S. Rt. 67/IL St Rt 100. The western end of IL St Rt 125. The western end marker.
