Iowa State Route 27 runs north-south along Western Bremer County. This runs from the Bremer/Chickasaw County Line to the Bremer/Black Hawk County Line. It has one spur at Waverly. IA St Rt 27 passes through the following town in Bremer County. Janesville
IA St Rt 27 is multi-plexed in Bremer County. U.S. Rt. 218, through Bremer County.
NB U.S. Rt. 218/IA St Rt 27 north of BCH C13. NB U.S. Rt. 218/IA St Rt 27 south of BCH C13. SB U.S. Rt. 218/IA St Rt 27 north of Plainfield. NB U.S. Rt. 218/IA St Rt 27 north of IA St Rt 188. NB U.S. Rt. 218/IA St Rt 27 south IA St Rt 188. SB U.S. Rt. 218/IA St Rt 27 south of Plainfield. NB U.S. Rt. 218/IA St Rt 27 south of Plainfield. NB U.S. Rt. 218/IA St Rt 27 north of BCH C33. NB U.S. Rt. 218/IA St Rt 27 at BCH C33. NB U.S. Rt. 218/IA St Rt 27 north of BUSN U.S. Rt. 218, north of Waverly. A junction marker on NB U.S. Rt. 218/IA St Rt 27. SB U.S. Rt. 218/IA St Rt 27 near Waverly. NB U.S. Rt. 218/IA St Rt 27 south of Waverly. NB U.S. Rt. 218/IA St Rt 27 north of Janesville. NB U.S. Rt. 218/IA St Rt 27 at the Cedar River. SB U.S. Rt. 218/IA St Rt 27 near Janesville. NB U.S. Rt. 218/IA St Rt 27 at BCH C50.
