Wisconsin Highway 188

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State Trunk Highway 188
WIS 188 highlighted in red
Route information
Maintained by WisDOT
Length	11.88 mi (19.12 km)
Major junctions
South end	US 12 in Sauk City
North end	WIS 113 in Merrimac
Location
Country	United States
State	Wisconsin
Counties	Dane, Columbia
Highway system
Wisconsin State Trunk Highway System Interstate US State Scenic Rustic
← WIS 187 → WIS 189

State Trunk Highway 188 (often called Highway 188, STH-188 or WIS 188) is a 11.88-mile (19.12 km) state highway in Dane and Columbia counties in south–central Wisconsin, United States, that runs north–south from near Sauk City to near Merrimac.