Illinois State Route 17 runs east-west across the extreme southern portion of Henry County. IL St Rt 17 passes through the following towns in Henry County. Galva
Nekoma Woodhull
Alpha
IL St Rt 17 is multi-plexed in Henry County. U.S. Rt. 34, near Galva.
A Henry County mile marker. WB U.S. Rt. 34/IL St Rt 17 west of Galva. EB U.S. Rt. 34/IL St Rt 17 at Galva. EB IL St Rt 17 west of U.S. Rt. 34. WB IL St Rt 17 west of U.S. Rt. 34. WB IL St Rt 17 west of IL St Rt 82. A guide marker on WB IL St Rt 81/SB IL St Rt 82. EB IL St Rt 17 east of Woodhull. EB IL St Rt 17 in Woodhull. EB IL St Rt 17 east of I-74/IL St Rt 110. A BGS on EB I-74/IL St Rt 110. A BGS on WB I-74/IL St Rt 110. Another Henry County mile marker. WB IL St Rt 17 east of U.S. Rt. 150. A set of guide markers on WB U.S. Rt. 150. WB U.S. Rt. 150/IL St Rt 17 south of Alpha. A junction marker on WB U.S. Rt. 150/IL St Rt 17. WB IL St Rt 17 west of U.S. Rt. 150.
