Silver Bow County is a county in the U.S. state of Montana. As of the 2020 census, the population was 35,133. Its county seat is Butte. In 1977, the city and county governments consolidated to form the single entity of Butte-Silver Bow. Additionally, the town of Walkerville is a separate municipality from Butte and is within the county.

Butte is a consolidated city-county and the county seat of Silver Bow County, Montana, United States. In 1977, the city and county governments consolidated to form the sole entity of Butte-Silver Bow. The city covers 718 square miles (1,860 km2), and, according to the 2020 census, has a population of 34,494, making it Montana's fifth-largest city. It is served by Bert Mooney Airport with airport code BTM.