Hettinger County (/ˈhɛtɪŋɡər/ HET-ing-gər) is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 2,489. Its county seat is Mott.

The city of Hettinger, North Dakota, is in nearby Adams County.

The Dakota Territory legislature created the county on March 9, 1883, with territory partitioned from Stark County. Its government was not organized at that time. The county name was chosen by territorial legislator Erastus A. Williams, to honor his father-in-law, Mathias K. Hettinger (1810-1890), who had been a banker and public figure in Freeport, Illinois. A settlement on the Cannonball River was selected as the county seat (Mott).

The county boundaries were reduced in 1885 and 1887. The county was dissolved on November 3, 1896, but was re-created on May 24, 1901, by an action of the state supreme court. This re-creation slightly altered the county's boundaries, due to the redefinition of its boundary lines: a sliver of non-county area between 46°N latitude and the south boundary line of North Dakota was added; a sliver on the west boundary was lost when the definition of the line shifted from 103°W longitude to the survey line dividing Ranges 98 and 99 (to allow the county lines to be defined by federally-surveyed lines).

Since the county's government was still unorganized, it was attached to Stark County for administrative and judicial purposes on March 10, 1903.

On April 17, 1907, the southern half of the county was partitioned off to form Adams County. On April 19 the Hettinger County governmental organization was effected and the county was administratively detached from Stark County.

In 1891, the North Dakota Legislature approved legislation to dissolve Hettinger County and add its territory to Stark County, but the law was vetoed by Governor Eli C. D. Shortridge.

Annexation was attempted a second time in 1895, when the legislature passed legislation expanding the boundaries of Stark, Billings and Mercer Counties, subject to approval by the counties' voters. The vote was approved, annexation went into effect November 3, 1896, and Hettinger County was eliminated. However, Wilson L. Richards, a cattle rancher in one of the annexed counties, sued to overturn the annexation because he and other landowners were now subject to taxation by Stark County. The case went to the North Dakota Supreme Court, which ruled the law unconstitutional on May 18, 1899. The annexation remained in effect, however, due to a replacement law approved by the legislature March 9, 1899 in anticipation of the court's decision. The second annexation law was overturned by the Supreme Court in 1901 because the annexation was not referred to the voters of the affected counties as required by the North Dakota Constitution.

The Legislature passed a third annexation law in 1903, this time submitting it to the voters in Stark County and the unorganized counties of Dunn and Hettinger for approval. The annexation was approved by 502 votes in Stark County and 65 votes in Hettinger County, but it failed by 1 vote in Dunn County. Stark County claimed the annexation vote valid, since the legislation required a majority of the aggregate votes cast. However, the North Dakota Constitution required a majority vote in each affected county subject to annexation, so the state of North Dakota sued Stark County on the grounds that the enabling legislation was unconstitutional and that the "no" vote in Dunn County meant the annexation failed. The North Dakota Supreme Court ruled the 1903 law unconstitutional in 1905, which ended further attempts at annexation.

The Cannonball River flows east-southeasterly through the central part of the county. The county terrain consists of semi-arid rolling hills, mostly devoted to agriculture. The terrain slopes to the east and south; its highest point is a hill at the northwestern corner, at 2,897 ft (883 m) ASL. The county has a total area of 1,134 square miles (2,940 km), of which 1,132 square miles (2,930 km) is land and 1.6 square miles (4.1 km) (0.1%) is water.

• North Dakota Highway 8
• North Dakota Highway 21
• North Dakota Highway 22

Source:

• Dry Lake
• Jung Lake
• Larson Lake

Historical population

Census	Pop.	Note	%±
1910	6,557		—
1920	7,685		17.2%
1930	8,796		14.5%
1940	7,457		−15.2%
1950	7,100		−4.8%
1960	6,317		−11.0%
1970	5,075		−19.7%
1980	4,275		−15.8%
1990	3,445		−19.4%
2000	2,715		−21.2%
2010	2,477		−8.8%
2020	2,489		0.5%
2022 (est.)	2,406		−3.3%
U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2020

As of the census of 2020, there were 2,489 people.

As of the census of 2010, there were 2,477 people, 1,056 households, and 682 families in the county. The population density was 2.2 inhabitants per square mile (0.85/km). There were 1,414 housing units at an average density of 1.2 units per square mile (0.46/km). The racial makeup of the county was 96.2% white, 2.1% American Indian, 0.2% black or African American, 0.1% Pacific islander, 0.0% from other races, and 1.3% from two or more races. Those of Hispanic or Latino origin made up 0.5% of the population. In terms of ancestry, 71.1% were German, 15.8% were Norwegian, 6.1% were Russian, 5.9% were Czech, 5.4% were Irish, 5.3% were Hungarian, and 3.2% were American.

Of the 1,056 households, 22.4% had children under the age of 18 living with them, 57.6% were married couples living together, 4.5% had a female householder with no husband present, 35.4% were non-families, and 33.1% of all households were made up of individuals. The average household size was 2.19 and the average family size was 2.75. The median age was 49.4 years.

The median income for a household in the county was $38,393 and the median income for a family was $49,605. Males had a median income of $33,155 versus $26,549 for females. The per capita income for the county was $24,928. About 8.2% of families and 11.0% of the population were below the poverty line, including 9.3% of those under age 18 and 13.1% of those age 65 or over.

• Mott (county seat)
• New England
• Regent

• Bentley
• Burt

Source:

• Alden
• Indian Creek Township

Hettinger County voters have traditionally voted Republican. In only one national election since 1936 has the county selected the Democratic Party candidate.

United States presidential election results for Hettinger County, North Dakota

Year	Republican		Democratic		Third party(ies)
	No.	%	No.	%	No.	%
2024	1,089	83.38%	192	14.70%	25	1.91%
2020	1,091	83.16%	196	14.94%	25	1.91%
2016	1,050	81.02%	168	12.96%	78	6.02%
2012	1,000	73.42%	313	22.98%	49	3.60%
2008	893	66.25%	406	30.12%	49	3.64%
2004	1,044	69.88%	405	27.11%	45	3.01%
2000	1,057	69.59%	353	23.24%	109	7.18%
1996	765	53.65%	418	29.31%	243	17.04%
1992	854	46.46%	465	25.30%	519	28.24%
1988	1,395	66.08%	698	33.06%	18	0.85%
1984	1,646	74.75%	524	23.80%	32	1.45%
1980	1,699	75.28%	434	19.23%	124	5.49%
1976	1,135	49.30%	1,095	47.57%	72	3.13%
1972	1,511	64.93%	726	31.20%	90	3.87%
1968	1,424	63.97%	638	28.66%	164	7.37%
1964	1,188	48.19%	1,275	51.72%	2	0.08%
1960	1,541	55.79%	1,219	44.13%	2	0.07%
1956	1,882	70.17%	796	29.68%	4	0.15%
1952	2,330	87.79%	297	11.19%	27	1.02%
1948	1,517	64.33%	752	31.89%	89	3.77%
1944	1,812	76.42%	554	23.37%	5	0.21%
1940	2,468	78.32%	671	21.29%	12	0.38%
1936	989	29.82%	1,383	41.69%	945	28.49%
1932	921	27.43%	2,336	69.57%	101	3.01%
1928	1,553	53.87%	1,323	45.89%	7	0.24%
1924	936	39.73%	128	5.43%	1,292	54.84%
1920	1,849	83.44%	327	14.76%	40	1.81%
1916	856	53.67%	661	41.44%	78	4.89%
1912	442	37.71%	381	32.51%	349	29.78%
1908	568	73.96%	181	23.57%	19	2.47%

• National Register of Historic Places listings in Hettinger County, North Dakota

• 
  Church building in Bentley
• 
  Neuburg Congregational Church

• Hettinger County official website
• 50th anniversary, Hettinger County, North Dakota :a tribute to our pioneers : 50 years of progress (1957) from the Digital Horizons website
• Hettinger County map, North Dakota DOT

46°26′N 102°26′W / 46.433°N 102.433°W / 46.433; -102.433