The Territorial legislature authorized Billings County on February 10, 1879, naming it for Northern Pacific Railway president Frederick H. Billings. It was organized on May 4, 1886. The original county boundary was significantly altered since its creation, by actions in 1883, 1885, 1887, 1896, 1901 and 1904. Its most significant alterations came in 1907 (Bowman County partitioned off), 1912 (Golden Valley County partitioned off), and 1914 (Slope County partitioned off).[3][4]
Geography
The Little Missouri River flows northward through the western portion of the county. Bullion Creek flows eastward into the southwestern corner of the county to discharge into the Little Missouri River.
Billings County terrain consists of rugged semi-arid hills in its western portion, giving way to more level ground in the east.[5] The terrain slopes to the east and south, with its highest terrain along its west boundary line, at 2,523 ft (769 m) ASL.[6]
Billings County has a total area of 1,153 square miles (2,990 km2), of which 1,149 square miles (2,980 km2) is land and 4.6 square miles (12 km2) (0.4%) is water.[7] The South Unit of Theodore Roosevelt National Park lies in the central part of the county, just north of Medora.
As of the census of 2010, there were 783 people, 358 households, and 223 families in the county. The population density was 0.7 inhabitants per square mile (0.27/km2). There were 484 housing units at an average density of 0.4 units per square mile (0.15/km2). The racial makeup of the county was 98.6% white, 0.5% Asian, 0.4% American Indian, 0.3% black or African American, 0.1% from other races, and 0.1% from two or more races. Those of Hispanic or Latino origin made up 0.5% of the population. In terms of ancestry, 40.6% were German, 19.1% were Ukrainian, 17.7% were Norwegian, 9.3% were Irish, 7.4% were Russian, 5.0% were English, and 0.9% were American.
Of the 358 households, 19.0% had children under the age of 18 living with them, 56.1% were married couples living together, 1.7% had a female householder with no husband present, 37.7% were non-families, and 33.2% of all households were made up of individuals. The average household size was 2.16 and the average family size was 2.72. The median age was 48.6 years.
The median income for a household in the county was $51,923 and the median income for a family was $61,250. Males had a median income of $46,806 versus $31,250 for females. The per capita income for the county was $28,666. About 6.8% of families and 8.3% of the population were below the poverty line, including 11.9% of those under age 18 and 4.5% of those age 65 or over.
Population by decade
Politics
Billings County voters have been traditionally Republican. In each of the last five elections (as of 2024) the Republican candidate has received over seventy percent of the county's vote.[14] However, it has some third party or independent interest. Billings county gave Ross Perot over twenty percent of the vote in his 1992 and 1996 campaigns.[15][16] It gave Pat Buchanan approximately six percent when he ran as the Reform Party's candidate in 2000.[17]
United States presidential election results for Billings County, North Dakota[18][b]