The map above shows Delaware and Oklahoma side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Delaware vs Oklahoma Geography
Land area: Delaware has a land area of 1,949 square miles (5,047 km²), while Oklahoma has 68,597 square miles (177,665 km²). Oklahoma's land area is 35.2 times larger than Delaware's.
Total area: Delaware: 2,489 square miles (6,446 km²) vs Oklahoma: 69,899 square miles (181,038 km²), including inland and coastal water. Oklahoma's total area is 28.1 times larger than Delaware's.
Length: Delaware is 98 miles (158 km) long from north to south; Oklahoma is 533 miles (857 km). Oklahoma's north-south length is 5.4 times (444%) longer than Delaware's.
Width: Delaware spans 96 miles (155 km) east to west; Oklahoma spans 490 miles (789 km). Oklahoma's east-west width is 5.1 times (410%) wider than Delaware's.
Highest point: Delaware's highest point is Ebright Azimuth at 450 feet (137 m); Oklahoma's is Black Mesa at 4,980 feet (1,518 m). Black Mesa is 4,530 feet higher than Ebright Azimuth.
Lowest point: Delaware's lowest point is Atlantic Ocean at 0 feet; Oklahoma's is Little River at 289 feet. Delaware's lowest point is 289 feet lower.
Delaware vs Oklahoma Population and History
Population: Delaware has a population of 1,051,917 (2024), while Oklahoma has 4,095,393 (2024). Oklahoma's population is 3.9 times (289%) larger than Delaware's.
Population density: Delaware: 539.9 people per square mile vs Oklahoma: 59.7. Delaware's population density is 9.0 times (804%) higher than Oklahoma's.
Biggest city: Delaware's biggest city is Wilmington with 73,176 people; Oklahoma's is Oklahoma City with 712,919. Oklahoma City's population is 9.7 times (874%) larger than Wilmington's.
Largest metro area: Delaware's largest metropolitan area is Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422 people) vs Oklahoma's Oklahoma City, OK metro area (1,497,821). Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's population is 4.2 times (323%) larger than Oklahoma City, OK metro area's.
History: Delaware: Admitted to the Union on December 7, 1787, as the 1st state. Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state. In its current form, Delaware is the older of the two by 120 years.
Delaware vs Oklahoma Economy
GDP: Delaware's GDP is $111.0 billion (2024) vs Oklahoma's $263.7 billion. Oklahoma's economic output is 2.4 times (138%) larger than Delaware's.
GDP per capita: Delaware: $105,495 per person vs Oklahoma: $64,388. Delaware's GDP per capita is 1.6 times (64%) higher than Oklahoma's.
Average income: Delaware: $68,061 vs Oklahoma: $63,708 average income per person (per capita personal income). Delaware's average income is 1.1 times (7%) higher than Oklahoma's.
Delaware vs Oklahoma Counties
Number of counties: Delaware has 3 counties, while Oklahoma has 77. Oklahoma's county count is 25.7 times higher than Delaware's.
Biggest county by area: Delaware's largest county is Sussex County at 936 square miles; Oklahoma's is Osage County at 2,247 square miles. Osage County's land area is 2.4 times (140%) larger than Sussex County's.
Smallest county by area: Delaware: New Castle County (426 sq mi) vs Oklahoma: Marshall County (372 sq mi). New Castle County's land area is 1.1 times (15%) larger than Marshall County's.
Most populous county: Delaware: New Castle County (588,093 people) vs Oklahoma: Oklahoma County (816,490 people). Oklahoma County's population is 1.4 times (39%) larger than New Castle County's.
Least populous county: Delaware: Kent County (192,690 people) vs Oklahoma: Cimarron County (2,133 people). Kent County's population is 90.3 times larger than Cimarron County's.
Richest county: Delaware: Sussex County ($73,647 per capita income) vs Oklahoma: Washington County ($126,749). Washington County's income is 1.7 times (72%) richer than Sussex County's.
Poorest county: Delaware: Kent County ($55,474 per capita income) vs Oklahoma: Atoka County ($38,709). Kent County's income is 1.4 times (43%) richer than Atoka County's.
Delaware vs Oklahoma Taxes
State income tax: Delaware has a top income tax rate of 6.6%, while Oklahoma has a top income tax rate of 4.5%. Delaware's top rate is 2.1 percentage points higher.
Property tax: Delaware: 0.47% effective rate vs Oklahoma: 0.75% of home value per year. Oklahoma's rate is 0.28 percentage points higher.
Sales tax: Delaware: 0% combined state and average local rate vs Oklahoma: 9.06%. Oklahoma's combined rate is 9.06 percentage points higher.
Official Websites
Delaware official website · Oklahoma official website
More Size Comparisons
All Delaware 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.