Iowa State Route 1 is the main north-south surface route in Central Washington County. This provides a two-lane alternative to U.S. Rt. 218/IA 27 to the east. IA St Rt 1 passes through the following towns in Washington County. Kalona
Washington
Brighton IA St Rt 1 is multi-plexed in Washington County. Iowa State Route 92, near Washington.
Iowa State Route 78, from Brighton to the Keokuk/Washington County Line. IA St Rt 1 intersects the following highways in Washington County. Iowa State Route 22, at Kalona.
A junction marker on WB IA St Rt 92. NB IA St Rt 1/WB IA St Rt 92 near 250th in Washington. NB IA St Rt 1/WB IA St Rt 92 near 5th in Washington. NB IA St Rt 1/WB IA St Rt 92 northwest of Washington. NB IA St Rt 1/WB IA St Rt 92 at WCH G36. NB IA St Rt 1 north of west IA St Rt 92. NB IA St Rt 1 south of WCH G20. NB IA St Rt 1 north of WCH G20. NB IA St Rt 1 south of WCH G16. NB IA St Rt 1 north of WCH G16. NB IA St Rt 1 south of Kaloha. NB IA St Rt 1 south of IA St Rt 22. NB IA St Rt 1 north of Kalona. NB IA St Rt 1 north of Kalona. SB IA St Rt 1 at the Johnson/Washington County Line.
