Blaine County is a county in the U.S. state of Montana. As of the 2010 United States Census, the population was 6,491. Its county seat is Chinook. The county was named for James G. Blaine, former United States Secretary of State. It is on the north line of the state, and thus shares the southern border of Canada.
According to the US Census Bureau, the county has a total area of 4,239 square miles (10,980 km), of which 4,228 square miles (10,950 km) is land and 11 square miles (28 km) (0.3%) is water.
The majority of Fort Belknap Indian Reservation is located in the southeastern part of the county.
Features of the area include the Milk River, Bears Paw Mountains, and the Little Rocky Mountains.
As of the 2000 United States Census, there were 7,009 people, 2,501 households, and 1,793 families residing in the county. The population density was 2 people per square mile (1/km²). There were 2,947 housing units at an average density of <1/km² (1/sq mi). The racial makeup of the county was 52.58% White, 0.17% Black or African American, 45.37% Native American, 0.09% Asian, 0.03% Pacific Islander, 0.23% from other races, and 1.54% from two or more races. 1.00% of the population were Hispanic or Latino of any race. 18.8% were of German and 8.1% Norwegian ancestry. 91.7% spoke English, 3.8% German and 2.0% Dakota as their first language.
There were 2,501 households out of which 36.00% had children under the age of 18 living with them, 52.30% were married couples living together, 14.40% had a female householder with no husband present, and 28.30% were non-families. 26.00% of all households were made up of individuals and 10.80% had someone living alone who was 65 years of age or older. The average household size was 2.78 and the average family size was 3.36.
The county population contained 32.60% under the age of 18, 8.00% from 18 to 24, 24.80% from 25 to 44, 21.60% from 45 to 64, and 12.90% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 97.50 males. For every 100 females age 18 and over, there were 96.30 males.
The median income for a household in the county was $25,247, and the median income for a family was $30,616. Males had a median income of $23,627 versus $20,469 for females. The per capita income for the county was $12,101. About 23.40% of families and 28.10% of the population were below the poverty line, including 36.50% of those under age 18 and 19.90% of those age 65 or over.
As of the 2010 United States Census, there were 6,491 people, 2,357 households, and 1,604 families residing in the county. The population density was 1.5 inhabitants per square mile (0.58/km). There were 2,843 housing units at an average density of 0.7 per square mile (0.27/km). The racial makeup of the county was 49.4% American Indian, 48.2% white, 0.1% black or African American, 0.1% Asian, 0.2% from other races, and 2.0% from two or more races. Those of Hispanic or Latino origin made up 1.8% of the population. In terms of ancestry, 23.0% were German, 9.2% were Norwegian, 6.6% were Irish, 5.7% were English, and 2.0% were American.
Of the 2,357 households, 39.2% had children under the age of 18 living with them, 45.6% were married couples living together, 16.0% had a female householder with no husband present, 31.9% were non-families, and 28.7% of all households were made up of individuals. The average household size was 2.66 and the average family size was 3.28. The median age was 35.1 years.
The median income for a household in the county was $37,034 and the median income for a family was $40,890. Males had a median income of $32,320 versus $28,986 for females. The per capita income for the county was $16,813. About 23.6% of families and 29.0% of the population were below the poverty line, including 44.6% of those under age 18 and 10.6% of those age 65 or over.
Blaine County Montana neighborhoods include: Ashley Hills, Ashley Park, Country Estates, Depot Park, East Kalispell, Empire Loop, Evergreen, Foothills/Creston, Glacier Ranch, Green Acres, Hoothill Rd, Lake Blaine, Lawrence Lane, Leisure Heights, Lets Meet Up, Lower Valley Manning Road, Lower Valley Rd, Magestic Arena, Many Lakes, McMannamy Draw, Meadow Hills, Mountain Vista Estates, North Haven, Northridge Heights, Ponderosa Estates, Shelter Valley, Silverbrook, Smith Valley, Southgate Villa, South Meadows, South Woodland Drive, Spring Creek Estates, Stillwater Estates, Stratford Village, Sunset Blvd – Main St., Sunset Park, Treeline Village, Valley Rose, Wakewood Acres, West Stillwater, Whitefish Stage Road