Silver Bow County, Montana

Butte-Silver Bow County
Location within the U.S. state of Montana
Coordinates: 45°54′N 112°40′W / 45.9°N 112.66°W / 45.9; -112.66
Country United States
State Montana
FoundedFebruary 16, 1881
Named afterSilver Bow Creek
SeatButte
Largest cityButte
Government
 • Chief ExecutiveJ.P. Gallagher
Area
 • Total
719 sq mi (1,860 km2)
 • Land718 sq mi (1,860 km2)
 • Water0.6 sq mi (1.6 km2)  0.08%
Population
 (2020)
 • Total
35,133
 • Estimate 
(2024)
36,134
 • Density48.9/sq mi (18.9/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional district1st
Websiteco.silverbow.mt.us
  • Montana county number 01
  • Unigov with Butte, MT

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.

Silver Bow County comprises the Butte-Silver Bow, MT Micropolitan Statistical Area.