Sequoyah County is a county located in the U.S. state of Oklahoma. As of the 2020 census, the population was 39,281. The county seat is Sallisaw. Sequoyah County was created in 1907 when Oklahoma became a state. It was named after Sequoyah, who created the Cherokee syllabary and its written language.

Sequoyah County is part of the Fort Smith, AR-OK metropolitan statistical area.

Archaeological sites within the borders of the present county date to the Archaic Period (6000 BC to 1 AD). A slightly smaller number of sites date to the Plains Village period (1000 to 1500 AD).

French traders came to this area in the 1700s, as they had posts in neighboring present-day Arkansas, part of their La Louisiane colony. Spain claimed the area until 1800, when France under Napoleon re-asserted control. He was making a last effort for French colonization in North America. But he ceded control by selling the Louisiana in 1803, when the United States purchased all French territory west of the Mississippi River.

Until 1816 the powerful Osage Nation dominated this and a much larger territory, reaching to the Mississippi River. With Lovely's Purchase, the US bought some of their land. Under pressure in the Southeast, some Cherokee migrated to the west early, and settled here on land granted by the US. The area was then known as Lovely County, Arkansas Territory.

The US forced removal of the Western Cherokee from Arkansas in 1829, resettling them in Indian Territory: present-day Sequoyah County, Oklahoma. Sequoyah was among the Cherokee who moved into this area, where he built a cabin that still stands. The Dwight Mission was moved to a site on Sallisaw Creek, and it still stands.

In the late 1830s, the US forced Indian Removal of most of the Cherokee in the Southeast from the remainder of their lands. They had to trek under Army escort to Indian Territory, a passage they called the Trail of Tears for its high fatalities and sorrows of leaving their homelands.

The Cherokee Nation established its first capital at a place called Tahlonteskee (Tahlontuskey), near the present town of Gore, Oklahoma. Tahlonteskee remained the capital until 1839, when it was superseded by Tahlequah. It continued as a meeting place for the "Old Settlers," as the Western Cherokee were known.

This area, then known as the Sequoyah District, was dominated by Cherokee who were Confederate sympathizers during the Civil War, as were the majority of the nation. Many of the Cherokee were slaveholders; they also had been told that the Confederates would provide them with a Native American state if victorious in the war. The only combat was on June 15, 1864, when Colonel Stand Watie and his Confederate troops conducted the ambush of the Union steamboat J. R. Williams on the Arkansas River.

According to the U.S. Census Bureau, the county has a total area of 714 square miles (1,850 km), of which 673 square miles (1,740 km) is land and 41 square miles (110 km) (5.7%) is water.

The county is divided between the Ozark Plateau in the north and the Ouachita Mountains in the south. The Cookson Hills are in the northwest part of the county. The Arkansas River forms the southern border. Other major waterways are the Illinois River and Robert S. Kerr Reservoir.

Interstate 40 runs east and west through Sequoyah County, while U.S. 59 runs north and south through the county.

• Cherokee County & Adair County (north)
• Crawford County, Arkansas (east)
• Sebastian County, Arkansas (southeast)
• Le Flore County (south)
• Haskell County (southwest)
• Muskogee County (west)

• Fort Smith National Historic Site (part)
• Sequoyah National Wildlife Refuge (part)

• Tenkiller State Park

Historical population

Census	Pop.	Note	%±
1910	25,005		—
1920	26,786		7.1%
1930	19,505		−27.2%
1940	23,138		18.6%
1950	19,773		−14.5%
1960	18,001		−9.0%
1970	23,370		29.8%
1980	30,749		31.6%
1990	33,828		10.0%
2000	38,972		15.2%
2010	42,391		8.8%
2020	39,281		−7.3%
U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2019

As of the census of 2000, there were 38,972 people, 14,761 households, and 10,982 families residing in the county. The population density was 22/km (57/sq mi). There were 16,940 housing units at an average density of 10/km (26/sq mi). The racial makeup of the county was 68.12% White, 1.86% Black or African American, 19.64% Native American, 0.22% Asian, 0.03% Pacific Islander, 0.74% from other races, and 9.39% from two or more races. 2.03% of the population were Hispanic or Latino of any race. 95.8% spoke English, 2.1% Cherokee and 1.7% Spanish as their first language. In 2020, its population grew to 39,281, though it was a decline from 2010's 42,391.

As of 2000, there were 14,761 households, out of which 34.20% had children under the age of 18 living with them, 58.20% were married couples living together, 11.90% had a female householder with no husband present, and 25.60% were non-families. 22.40% of all households were made up of individuals, and 10.20% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 3.05. In the county, the population was spread out, with 27.40% under the age of 18, 8.20% from 18 to 24, 26.90% from 25 to 44, 24.00% from 45 to 64, and 13.50% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 97.30 males. For every 100 females age 18 and over, there were 92.50 males.

In 2000, the median income for a household in the county was $27,615, and the median income for a family was $32,673. Males had a median income of $26,613 versus $19,751 for females. The per capita income for the county was $13,405. About 16.10% of families and 19.80% of the population were below the poverty line, including 24.80% of those under age 18 and 18.10% of those age 65 or over.

Sequoyah County Sheriff's Office
Jurisdictional structure
Operations jurisdiction	Sequoyah, Oklahoma, United States
Legal jurisdiction	As per operations jurisdiction
General nature	Local civilian police
Operational structure
Agency executives	Larry Lane, Sheriff Charles House, Undersheriff
Facilities
Stations	1
Jails	1
Boats	1

The county law enforcement is the Sequoyah County Sheriff's Office. The department patrols all of the county's rural areas and provides at least three investigators in the department. The current sheriff is Larry Lane.

Voter Registration and Party Enrollment as of June 30, 2023
Party		Number of Voters	Percentage
	Democratic	7,320	31.53%
	Republican	12,292	52.94%
	Others	3,607	15.53%
Total		23,219	100%

United States presidential election results for Sequoyah County, Oklahoma

Year	Republican		Democratic		Third party(ies)
	No.	%	No.	%	No.	%
2024	12,491	80.16%	2,907	18.65%	185	1.19%
2020	12,113	78.73%	3,035	19.73%	238	1.55%
2016	10,888	75.42%	3,061	21.20%	488	3.38%
2012	9,578	69.55%	4,193	30.45%	0	0.00%
2008	9,466	68.00%	4,454	32.00%	0	0.00%
2004	8,865	60.00%	5,910	40.00%	0	0.00%
2000	6,614	53.97%	5,425	44.27%	215	1.75%
1996	4,733	39.04%	5,665	46.73%	1,726	14.24%
1992	4,925	36.33%	6,092	44.94%	2,539	18.73%
1988	5,710	53.22%	4,951	46.15%	68	0.63%
1984	7,042	62.32%	4,202	37.19%	56	0.50%
1980	5,987	53.24%	4,983	44.31%	276	2.45%
1976	3,938	39.84%	5,873	59.42%	73	0.74%
1972	6,842	71.64%	2,519	26.37%	190	1.99%
1968	2,797	36.93%	2,618	34.57%	2,158	28.50%
1964	2,846	39.80%	4,304	60.20%	0	0.00%
1960	3,862	56.76%	2,942	43.24%	0	0.00%
1956	3,330	48.33%	3,560	51.67%	0	0.00%
1952	3,288	44.67%	4,072	55.33%	0	0.00%
1948	2,077	31.83%	4,449	68.17%	0	0.00%
1944	2,893	44.70%	3,571	55.18%	8	0.12%
1940	3,803	45.92%	4,469	53.97%	9	0.11%
1936	2,609	37.87%	4,281	62.13%	0	0.00%
1932	1,833	28.04%	4,704	71.96%	0	0.00%
1928	3,296	55.04%	2,692	44.96%	0	0.00%
1924	2,875	45.11%	3,429	53.80%	70	1.10%
1920	3,195	54.96%	2,505	43.09%	113	1.94%
1916	1,179	35.32%	1,632	48.89%	527	15.79%
1912	1,115	40.75%	1,416	51.75%	205	7.49%

• Sallisaw (county seat)

• Cottonwood
• Foreman
• Redland

The following sites in Sequoyah County are listed on the National Register of Historic Places:

Baker "A" Archeological Site (34SQ269), Short Citizen's State Bank, Marble City Dwight Mission, Marble City Ellison No. 2 Site (34SQ85), Short Judge Franklin Faulkner House, Sallisaw Fears Site (34SQ76), Nicut First Presbyterian Church, Sallisaw

Hines Round Barn, Sallisaw Kirby-Steely Archeological Site, Short Lee's Creek Ceremonial Center Site, Short Sallisaw High School, Sallisaw Sequoyah's Cabin, Akins Starr Pasture Archeological Site (34SQ224), Short Tall Cane Archeological Site (34SQ294), Short

• "Sequoyah County'" Official Website for Sequoyah County Courthouse
• "Sequoyah County'" Encyclopedia of Oklahoma History and Culture
• Oklahoma Digital Maps: Digital Collections of Oklahoma and Indian Territory

35°30′N 94°45′W / 35.50°N 94.75°W / 35.50; -94.75