The map above shows North Dakota and Oklahoma side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
North Dakota vs Oklahoma Geography
Land area
- North Dakota has a land area of 68,994 square miles (178,694 km²), while Oklahoma has 68,597 square miles (177,665 km²).
- North Dakota and Oklahoma have about the same land area.
Total area
- North Dakota: 70,699 square miles (183,109 km²) vs Oklahoma: 69,899 square miles (181,038 km²), including inland and coastal water.
- North Dakota and Oklahoma have about the same total area.
Length
- North Dakota is 338 miles (544 km) long from north to south; Oklahoma is 533 miles (857 km).
- Oklahoma's north-south length is 1.6 times (58%) longer than North Dakota's.
Width
- North Dakota spans 408 miles (657 km) east to west; Oklahoma spans 490 miles (789 km).
- Oklahoma's east-west width is 1.2 times (20%) wider than North Dakota's.
Highest point
- North Dakota's highest point is White Butte at 3,500 feet (1,067 m); Oklahoma's is Black Mesa at 4,980 feet (1,518 m).
- Black Mesa is 1,480 feet higher than White Butte.
Lowest point
- North Dakota's lowest point is Red River of the North at 754 feet; Oklahoma's is Little River at 289 feet.
- Oklahoma's lowest point is 465 feet lower.
North Dakota vs Oklahoma Population and History
Population
- North Dakota has a population of 796,568 (2024), while Oklahoma has 4,095,393 (2024).
- Oklahoma's population is 5.1 times (414%) larger than North Dakota's.
Population density
- North Dakota: 11.5 people per square mile vs Oklahoma: 59.7.
- Oklahoma's population density is 5.2 times (419%) higher than North Dakota's.
Biggest city
- North Dakota's biggest city is Fargo with 136,285 people; Oklahoma's is Oklahoma City with 712,919.
- Oklahoma City's population is 5.2 times (423%) larger than Fargo's.
Largest metro area
- North Dakota's largest metropolitan area is Fargo, ND-MN metro area (267,793 people) vs Oklahoma's Oklahoma City, OK metro area (1,497,821).
- Oklahoma City, OK metro area's population is 5.6 times (459%) larger than Fargo, ND-MN metro area's.
History
- North Dakota: Admitted to the Union on November 2, 1889, as the 39th state.
- Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state.
- In its current form, North Dakota is the older of the two by 18 years.
North Dakota vs Oklahoma Economy
GDP
- North Dakota's GDP is $80.1 billion (2024) vs Oklahoma's $263.7 billion.
- Oklahoma's economic output is 3.3 times (229%) larger than North Dakota's.
GDP per capita
- North Dakota: $100,504 per person vs Oklahoma: $64,388.
- North Dakota's GDP per capita is 1.6 times (56%) higher than Oklahoma's.
Average income
- North Dakota: $71,749 vs Oklahoma: $63,708 average income per person (per capita personal income).
- North Dakota's average income is 1.1 times (13%) higher than Oklahoma's.
North Dakota vs Oklahoma Counties
Number of counties
- North Dakota has 53 counties, while Oklahoma has 77.
- Oklahoma's county count is 1.5 times (45%) higher than North Dakota's.
Biggest county by area
- North Dakota's largest county is McKenzie County at 2,760 square miles; Oklahoma's is Osage County at 2,247 square miles.
- McKenzie County's land area is 1.2 times (23%) larger than Osage County's.
Smallest county by area
- North Dakota: Eddy County (630 sq mi) vs Oklahoma: Marshall County (372 sq mi).
- Eddy County's land area is 1.7 times (70%) larger than Marshall County's.
Most populous county
- North Dakota: Cass County (200,945 people) vs Oklahoma: Oklahoma County (816,490 people).
- Oklahoma County's population is 4.1 times (306%) larger than Cass County's.
Least populous county
- North Dakota: Slope County (660 people) vs Oklahoma: Cimarron County (2,133 people).
- Cimarron County's population is 3.2 times (223%) larger than Slope County's.
Richest county
- North Dakota: Dunn County ($99,793 per capita income) vs Oklahoma: Washington County ($126,749).
- Washington County's income is 1.3 times (27%) richer than Dunn County's.
Poorest county
- North Dakota: Sioux County ($33,782 per capita income) vs Oklahoma: Atoka County ($38,709).
- Atoka County's income is 1.1 times (15%) richer than Sioux County's.
North Dakota vs Oklahoma Taxes
State income tax
- North Dakota has a top income tax rate of 2.5%, while Oklahoma has a top income tax rate of 4.5%.
- Oklahoma's top rate is 2 percentage points higher.
Property tax
- North Dakota: 0.96% effective rate vs Oklahoma: 0.75% of home value per year.
- North Dakota's rate is 0.21 percentage points higher.
Sales tax
- North Dakota: 7.09% combined state and average local rate vs Oklahoma: 9.06%.
- Oklahoma's combined rate is 1.97 percentage points higher.
Official Websites
North Dakota official website · Oklahoma official website
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More Size Comparisons
All North Dakota size comparisons · All Oklahoma size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.