Illinois State Route 251 runs north-south in Eastern Ogle County. This is Eastern Ogle Counties main surface highway. IL St Rt 251 passes through the following highways in Ogle County. Rochelle
NB IL St Rt 251 at the Lee/Ogle County Line. (August, 2024) NB IL St Rt 251 at the Lee/Ogle County Line. (September, 2024) SB IL St Rt 251 south of I-88/IL St Rt 110. A BGS on WB I-88/IL St Rt 110. A set of BGS's on WB I-88/IL St Rt 110. A BGS on WB I-88/IL St Rt 110. A BGS on WB I-88/IL St Rt 110. SB IL St Rt 251 near I-88 in Rochelle. NB IL St Rt 251 in Rochelle. NB IL St Rt 251 near 2nd in Rochelle. 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. NB IL St Rt 251 north of Rochelle. NB IL St Rt 251 at Hillcrest. A Ogle County mile marker. NB guide marker in Northern Ogle County. A junction marker on WB IL St Rt 72. A Ogle County mile marker at the Ogle/Winnebago County Line.
