Anaconda, county seat of Anaconda City/Deer Lodge County, is located in mountainous southwestern Montana. The Continental Divide passes within south of the community with the local Pintler Mountain range reaching . According to the 2010 census the population is 9,328, with a per capita personal income of $21,163 and a median household income of $26,305. It is the ninth most populous city in Montana. Central Anaconda is above sea level, and is surrounded by the communities of Opportunity and West Valley.
The county area is , characterized by densely timbered forestlands, lakes, mountains and recreation grounds. The county has common borders with Beaverhead, Butte-Silver Bow, Granite, Jefferson and Powell counties.