Classification: County
Located in: Montana (MT)
Total Population (2000): 18837
Total Housing Units (2000): 9319
Land Area (square meters): 9356768784
Water Area (square meters): 161719030
Land Area (square miles): 3612.668778
Water Area (square miles): 62.440069
Latitude (decimal degrees): 48.558617
Longitude (decimal degrees): -115.359348
FIPS Code: 30
Place FIPS Code: 53