Illinois State Route 38 runs east-west across the southeastern portion of Ogle County. This is the main connector route to Interstate 39/U.S. Rt. 51 from Rochelle. IL St Rt 38 passes through the following town in Ogle County. Creston
EB IL St Rt 38 at the Lee/Ogle County Line. WB IL St Rt 38 near Flagg. WB IL St Rt 38 west of Rochelle. A BGS on NB IL St Rt 251 in Rochelle. A BGS on NB IL St Rt 251. EB IL St Rt 38/NB IL St Rt 251 at 10th in Rochelle. EB IL St Rt 38/NB IL St Rt 251 south of Jones in Rochelle. A junction marker on SB IL St Rt 251. WB IL St Rt 38 at north IL St Rt 251. EB IL St Rt 38 east of Rochelle. A BGS on SB I-39/U.S. Rt. 51. A BGS on NB I-39/U.S. Rt. 51. WB IL St Rt 38 west of Creston. WB IL St Rt 38 east of Creston. WB IL St Rt 38 at the De Kalb/Ogle County Line. WB IL St Rt 38 at the De Kalb/Ogle County Line. (July, 2015)
