The map above shows Oklahoma and Texas side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Oklahoma vs Texas Geography
Land area: Oklahoma has a land area of 68,597 square miles (177,665 km²), while Texas has 261,259 square miles (676,657 km²). Texas' land area is 3.8 times (281%) larger than Oklahoma's.
Total area: Oklahoma: 69,899 square miles (181,038 km²) vs Texas: 268,599 square miles (695,668 km²), including inland and coastal water. Texas' total area is 3.8 times (284%) larger than Oklahoma's.
Length: Oklahoma is 533 miles (857 km) long from north to south; Texas is 808 miles (1,300 km). Texas' north-south length is 1.5 times (52%) longer than Oklahoma's.
Width: Oklahoma spans 490 miles (789 km) east to west; Texas spans 777 miles (1,250 km). Texas' east-west width is 1.6 times (59%) wider than Oklahoma's.
Highest point: Oklahoma's highest point is Black Mesa at 4,980 feet (1,518 m); Texas's is Guadalupe Peak at 8,730 feet (2,661 m). Guadalupe Peak is 3,750 feet higher than Black Mesa.
Lowest point: Oklahoma's lowest point is Little River at 289 feet; Texas's is Gulf of Mexico at 0 feet. Texas's lowest point is 289 feet lower.
Oklahoma vs Texas Population and History
Population: Oklahoma has a population of 4,095,393 (2024), while Texas has 31,290,831 (2024). Texas' population is 7.6 times (664%) larger than Oklahoma's.
Population density: Oklahoma: 59.7 people per square mile vs Texas: 119.8. Texas' population density is 2.0 times (101%) higher than Oklahoma's.
Biggest city: Oklahoma's biggest city is Oklahoma City with 712,919 people; Texas's is Houston with 2,390,125. Houston's population is 3.4 times (235%) larger than Oklahoma City's.
Largest metro area: Oklahoma's largest metropolitan area is Oklahoma City, OK metro area (1,497,821 people) vs Texas's Dallas-Fort Worth-Arlington, TX metro area (8,344,032). Dallas-Fort Worth-Arlington, TX metro area's population is 5.6 times (457%) larger than Oklahoma City, OK metro area's.
History: Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state. Texas: Admitted to the Union on December 29, 1845, as the 28th state. In its current form, Texas is the older of the two by 62 years.
Oklahoma vs Texas Economy
GDP: Oklahoma's GDP is $263.7 billion (2024) vs Texas's $2,769.8 billion. Texas' economic output is 10.5 times larger than Oklahoma's.
GDP per capita: Oklahoma: $64,388 per person vs Texas: $88,517. Texas' GDP per capita is 1.4 times (37%) higher than Oklahoma's.
Average income: Oklahoma: $63,708 vs Texas: $69,823 average income per person (per capita personal income). Texas' average income is 1.1 times (10%) higher than Oklahoma's.
Oklahoma vs Texas Counties
Number of counties: Oklahoma has 77 counties, while Texas has 254. Texas' county count is 3.3 times (230%) higher than Oklahoma's.
Biggest county by area: Oklahoma's largest county is Osage County at 2,247 square miles; Texas's is Brewster County at 6,184 square miles. Brewster County's land area is 2.8 times (175%) larger than Osage County's.
Smallest county by area: Oklahoma: Marshall County (372 sq mi) vs Texas: Rockwall County (127 sq mi). Marshall County's land area is 2.9 times (192%) larger than Rockwall County's.
Most populous county: Oklahoma: Oklahoma County (816,490 people) vs Texas: Harris County (5,009,302 people). Harris County's population is 6.1 times (514%) larger than Oklahoma County's.
Least populous county: Oklahoma: Cimarron County (2,133 people) vs Texas: Loving County (48 people). Cimarron County's population is 44.4 times larger than Loving County's.
Richest county: Oklahoma: Washington County ($126,749 per capita income) vs Texas: Loving County ($220,625). Loving County's income is 1.7 times (74%) richer than Washington County's.
Poorest county: Oklahoma: Atoka County ($38,709 per capita income) vs Texas: Starr County ($34,180). Atoka County's income is 1.1 times (13%) richer than Starr County's.
Oklahoma vs Texas Taxes
State income tax: Oklahoma has a top income tax rate of 4.5%, while Texas has no state income tax. Oklahoma's top rate is 4.5 percentage points higher.
Property tax: Oklahoma: 0.75% effective rate vs Texas: 1.31% of home value per year. Texas's rate is 0.56 percentage points higher.
Sales tax: Oklahoma: 9.06% combined state and average local rate vs Texas: 8.2%. Oklahoma's combined rate is 0.86 percentage points higher.
Official Websites
Oklahoma official website · Texas official website
More Size Comparisons
All Oklahoma size comparisons · All Texas 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.