In Milwaukee, WIS 190 is known as Capitol Drive, one of the main streets of the city's north side.

The road's name comes from older mapping methods that discerned the road would lead directly toward the Wisconsin State Capitol in Madison if built in a straight east-west line from Lake Michigan, though current day mapping actually places it two miles north of downtown Madison and the Capitol's center point.

WI 190 officially ends at the intersection with Simmons Avenue in Pewaukee, a block south of the post office.

The Harley-Davidson Motorcycle middle-weight engine assembly plant and Product Development Center (PDC) are located at the intersection of WIS 190 and US Highway 45/Interstate 41 in Milwaukee.

The entrance to the plant and to the PDC is accessible by off-ramp from the western section of Capitol Drive's interchange with US 45/I-41.