Wisconsin State Route 120 runs north-south through Walworth County. The northern end is at an interscertion with I-43 at East Troy. With the southern end at the Wisconsin/Illinois State Line. WI St Rt 120 passes through the following towns in Walworth County. Lake Geneva Springfield Spring Prairie
East Troy WI St Rt 120 is not multi-plexed in Walworth County. Wisconsin State Route 50, at Lake Geneva. WI St Rt 120 intersects the following highways in Walworth County. Interstate 43, at East Troy. Wisconsin State Route 11, at Spring Prairie.
South end of WI St Rt 120 at the Wisconsin/Illinois State Line. Sign at the Wisconsin/Illinois State Line. Looking north at WI St Rt 120 at the Wisconsin/Illinois State Line. A junction marker on EB WI St Rt 50. A junction marker on NB U.S. Rt. 12. A BGS on SB U.S. Rt. 12. BGS on NB U.S. Rt. 12 at Lake Geneva. NB WI St Rt 120 north of Spring Prairie. A BGS on SB I-43. North end of WI St Rt 120 at I-43.
