Hettinger ( HET-ing-gər) is a city in, and the county seat of, Adams County, North Dakota, United States. The population was 1,226 at the 2010 census.
North Dakota State University operates a livestock research station near Hettinger, which often partners with South Dakota State University's Antelope Range and Livestock Research Station for sheep research.
Hettinger was founded in 1907 along the Milwaukee Road's transcontinental rail line known as the Pacific Extension. The city and its surrounding township were named by popular demand in recognition of Hettinger County, from which Adams County was created in 1907.
According to the United States Census Bureau, the city has a total area of 0.86 square miles (2.23 km2), of which 0.85 square miles (2.20 km2) is land and 0.01 square miles (0.03 km2) is water.
According to the Köppen Climate Classification system, Hettinger has a semi-arid climate, abbreviated "BSk" on climate maps.
As of the census of 2000, there were 1,307 people, 584 households, and 345 families living in the city. The population density was 1,556.6 people per square mile (600.8/km2). There were 720 housing units at an average density of 857.5 per square mile (330.9/km2). The racial makeup of the city was 98.78% White, 0.15% African American, 0.38% Native American, 0.15% Asian, 0.08% Pacific Islander, 0.23% from other races, and 0.23% from two or more races. Hispanic or Latino people of any race were 0.38% of the population.
There were 584 households, out of which 25.7% had children under the age of 18 living with them, 47.8% were married couples living together, 8.6% had a female householder with no husband present, and 40.8% were non-families. 38.0% of all households were made up of individuals, and 22.6% had someone living alone who was 65 years of age or older. The average household size was 2.10 and the average family size was 2.76.