The map above shows California and Oklahoma side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
California vs Oklahoma Geography
Land area
- California has a land area of 155,859 square miles (403,673 km²), while Oklahoma has 68,597 square miles (177,665 km²).
- California's land area is 2.3 times (127%) larger than Oklahoma's.
Total area
- California: 163,694 square miles (423,965 km²) vs Oklahoma: 69,899 square miles (181,038 km²), including inland and coastal water.
- California's total area is 2.3 times (134%) larger than Oklahoma's.
Length
- California is 761 miles (1,224 km) long from north to south; Oklahoma is 533 miles (857 km).
- California's north-south length is 1.4 times (43%) longer than Oklahoma's.
Width
- California spans 706 miles (1,137 km) east to west; Oklahoma spans 490 miles (789 km).
- California's east-west width is 1.4 times (44%) wider than Oklahoma's.
Highest point
- California's highest point is Mount Whitney at 14,484 feet (4,415 m); Oklahoma's is Black Mesa at 4,980 feet (1,518 m).
- Mount Whitney is 9,504 feet higher than Black Mesa.
Lowest point
- California's lowest point is Death Valley at -279 feet; Oklahoma's is Little River at 289 feet.
- California's lowest point is 568 feet lower.
California vs Oklahoma Population and History
Population
- California has a population of 39,431,263 (2024), while Oklahoma has 4,095,393 (2024).
- California's population is 9.6 times (863%) larger than Oklahoma's.
Population density
- California: 253.0 people per square mile vs Oklahoma: 59.7.
- California's population density is 4.2 times (324%) higher than Oklahoma's.
Biggest city
- California's biggest city is Los Angeles with 3,878,704 people; Oklahoma's is Oklahoma City with 712,919.
- Los Angeles' population is 5.4 times (444%) larger than Oklahoma City's.
Largest metro area
- California's largest metropolitan area is Los Angeles-Long Beach-Anaheim, CA metro area (12,927,614 people) vs Oklahoma's Oklahoma City, OK metro area (1,497,821).
- Los Angeles-Long Beach-Anaheim, CA metro area's population is 8.6 times (763%) larger than Oklahoma City, OK metro area's.
History
- California: Admitted to the Union on September 9, 1850, as the 31st state.
- Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state.
- In its current form, California is the older of the two by 57 years.
California vs Oklahoma Economy
GDP
- California's GDP is $4,048.1 billion (2024) vs Oklahoma's $263.7 billion.
- California's economic output is 15.4 times larger than Oklahoma's.
GDP per capita
- California: $102,662 per person vs Oklahoma: $64,388.
- California's GDP per capita is 1.6 times (59%) higher than Oklahoma's.
Average income
- California: $86,232 vs Oklahoma: $63,708 average income per person (per capita personal income).
- California's average income is 1.4 times (35%) higher than Oklahoma's.
California vs Oklahoma Counties
Number of counties
- California has 58 counties, while Oklahoma has 77.
- Oklahoma's county count is 1.3 times (33%) higher than California's.
Biggest county by area
- California's largest county is San Bernardino County at 20,068 square miles; Oklahoma's is Osage County at 2,247 square miles.
- San Bernardino County's land area is 8.9 times (793%) larger than Osage County's.
Smallest county by area
- California: San Francisco County (47 sq mi) vs Oklahoma: Marshall County (372 sq mi).
- Marshall County's land area is 8.0 times (696%) larger than San Francisco County's.
Most populous county
- California: Los Angeles County (9,757,179 people) vs Oklahoma: Oklahoma County (816,490 people).
- Los Angeles County's population is 12.0 times larger than Oklahoma County's.
Least populous county
- California: Alpine County (1,099 people) vs Oklahoma: Cimarron County (2,133 people).
- Cimarron County's population is 1.9 times (94%) larger than Alpine County's.
Richest county
- California: Marin County ($190,891 per capita income) vs Oklahoma: Washington County ($126,749).
- Marin County's income is 1.5 times (51%) richer than Washington County's.
Poorest county
- California: Trinity County ($42,191 per capita income) vs Oklahoma: Atoka County ($38,709).
- Trinity County's income is 1.1 times (9%) richer than Atoka County's.
California vs Oklahoma Taxes
State income tax
- California has a top income tax rate of 13.3%, while Oklahoma has a top income tax rate of 4.5%.
- California's top rate is 8.8 percentage points higher.
Property tax
- California: 0.71% effective rate vs Oklahoma: 0.75% of home value per year.
- Oklahoma's rate is 0.04 percentage points higher.
Sales tax
- California: 9.03% combined state and average local rate vs Oklahoma: 9.06%.
- Oklahoma's combined rate is 0.03 percentage points higher.
Official Websites
California official website · Oklahoma official website
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More Size Comparisons
All California 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.