|Box Butte County, Nebraska|
Box Butte County Courthouse in Alliance
Location in the U.S. state of Nebraska
Nebraska's location in the U.S.
|• Total||1,078 sq mi (2,792 km2)|
|• Land||1,075 sq mi (2,784 km2)|
|• Water||2.5 sq mi (6 km2), 0.2%|
|• ( 2010)||11,308|
|• Density||11/sq mi (4/km2)|
|Time zone||Mountain: UTC−7/ −6|
Box Butte County is a county in the U.S. state of Nebraska. As of the 2010 census, the population was 11,308.  Its county seat is Alliance.  The county was formed in 1886; it took its name from a large box-shaped butte north of Alliance.
In the Nebraska license plate system, Box Butte County is represented by the prefix 65 (it had the sixty-fifth largest number of vehicles registered in the county when the license plate system was established in 1922).
Box Butte County was formed as part of a series of partitionings of the Nebraska Panhandle. In 1883, the Nebraska legislature divided the Panhandle into two counties, called Sioux and Cheyenne. In 1885, because of its size, the original Sioux County was divided into three counties, called Sioux, Dawes, and Sheridan. Because of the distance to the county seat of Chadron, residents of southern Dawes County asked that it be split off; in 1886, the legislature created Box Butte County. The new county was named after a butte in the northern part of the county; prior to the county's formation, its name had been used in advertisements by railroad companies seeking to entice settlers to the area.  
In the Nebraska license plate system, Box Butte County is represented by the prefix 65 (it had the 65th-largest number of vehicles registered in the county when the license plate system was established in 1922).
- Dawes County, Nebraska - north
- Sheridan County, Nebraska - east
- Morrill County, Nebraska - south
- Scotts Bluff County, Nebraska - southwest
- Sioux County, Nebraska - west
|U.S. Decennial Census
1790-1960  1900-1990 
1990-2000  2010-2013 
As of the census  of 2000, there were 12,158 people, 4,780 households, and 3,298 families residing in the county. The population density was 11 people per square mile (4/km²). There were 5,488 housing units at an average density of 5 per square mile (2/km²). The racial makeup of the county was 90.84% White, 0.37% Black or African American, 2.74% Native American, 0.53% Asian, 0.01% Pacific Islander, 3.55% from other races, and 1.96% from two or more races. 7.65% of the population were Hispanic or Latino of any race. 36.4% were of German, 8.4% English, 8.1% Irish and 5.3% American ancestry according to Census 2000.
There were 4,780 households out of which 35.60% had children under the age of 18 living with them, 57.70% were married couples living together, 8.30% had a female householder with no husband present, and 31.00% were non-families. 27.50% of all households were made up of individuals and 11.10% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.05.
In the county, the population was spread out with 28.10% under the age of 18, 7.40% from 18 to 24, 26.80% from 25 to 44, 23.10% from 45 to 64, and 14.60% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 99.20 males. For every 100 females age 18 and over, there were 94.60 males.
The median income for a household in the county was $39,366, and the median income for a family was $46,670. Males had a median income of $36,966 versus $21,762 for females. The per capita income for the county was $18,407. About 9.70% of families and 10.70% of the population were below the poverty line, including 13.70% of those under age 18 and 11.00% of those age 65 or over.
- Alliance (county seat)
- "State & County QuickFacts". United States Census Bureau. Retrieved September 17, 2013.
- "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- Kooiman and Butterfield (1996), p. 24.
- Fitzpatrick, Lilian Linder (1925). Nebraska Place-Names, p. 20. Retrieved December 11, 2017.
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on November 13, 2013. Retrieved December 6, 2014.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved December 6, 2014.
- "Historical Census Browser". University of Virginia Library. Retrieved December 6, 2014.
- "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved December 6, 2014.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved December 6, 2014.
- "American FactFinder". United States Census Bureau. Archived from the original on 2013-09-11. Retrieved January 31, 2008.
Kooiman, Barbara A., and Elizabeth A. Butterfield (1996). "Nebraska Historic Buildings Survey: Reconnaissance Survey Final Report of Box Butte County, Nebraska". Nebraska State Historical Society. Retrieved December 11, 2017.