Boscobel is a city in Grant County, Wisconsin, United States. The population was 3,047 at the 2000 census. Approximately 0.6 mi. (1 km) to the north of the city, across a riparian swamp, is the Wisconsin River. U.S. Route 61 crosses the Wisconsin River at Boscobel. To the south, the city is surrounded by the town of Boscobel. Boscobel is the site of a stop along the now defunct Wisconsin Western Railroad.