According to the United States Census Bureau, the county has a total area of 1,239 square miles (3,210 km2), of which 1,193 square miles (3,090 km2) is land and 46 square miles (120 km2) (3.7%) is water.[5]
Broadwater County is perhaps best known as the home of Canyon Ferry Lake, the third largest body of water in Montana. The lake provides essential irrigation to local farms, and serves as a recreation destination for the region, with fishing, boating, swimming, camping, and wildlife viewing opportunities.[6]
As of the 2010 census, there were 5,612 people, 2,347 households, and 1,614 families living in the county. The population density was 4.7 inhabitants per square mile (1.8/km2). There were 2,695 housing units at an average density of 2.3 units per square mile (0.89 units/km2). The racial makeup of the county was 96.2% white, 1.3% American Indian, 0.3% black or African American, 0.2% Pacific islander, 0.2% Asian, 0.3% from other races, and 1.5% from two or more races. Those of Hispanic or Latino origin made up 2.2% of the population. In terms of ancestry, 38.7% were German, 16.2% were English, 15.5% were Irish, 7.9% were Norwegian, 6.4% were Scottish, and 2.3% were American.
Of the 2,347 households, 27.5% had children under the age of 18 living with them, 58.7% were married couples living together, 6.2% had a female householder with no husband present, 31.2% were non-families, and 26.6% of all households were made up of individuals. The average household size was 2.37 and the average family size was 2.85. The median age was 45.4 years.
The median income for a household in the county was $44,667 and the median income for a family was $46,949. Males had a median income of $34,500 versus $32,014 for females. The per capita income for the county was $19,606. About 5.8% of families and 10.1% of the population were below the poverty line, including 10.0% of those under age 18 and 7.1% of those age 65 or over.
Economy
Agriculture is one of the primary industries in Broadwater County. RY Timber and Wheat Montana Bakery were the largest private employers according to the 2000 Census.[6]