The map above shows California and Ohio side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
California vs Ohio Geography
Land area
- California has a land area of 155,859 square miles (403,673 km²), while Ohio has 40,859 square miles (105,824 km²).
- California's land area is 3.8 times (281%) larger than Ohio's.
Total area
- California: 163,694 square miles (423,965 km²) vs Ohio: 44,826 square miles (116,098 km²), including inland and coastal water.
- California's total area is 3.7 times (265%) larger than Ohio's.
Length
- California is 761 miles (1,224 km) long from north to south; Ohio is 291 miles (468 km).
- California's north-south length is 2.6 times (162%) longer than Ohio's.
Width
- California spans 706 miles (1,137 km) east to west; Ohio spans 317 miles (510 km).
- California's east-west width is 2.2 times (123%) wider than Ohio's.
Highest point
- California's highest point is Mount Whitney at 14,484 feet (4,415 m); Ohio's is Campbell Hill at 1,547 feet (472 m).
- Mount Whitney is 12,937 feet higher than Campbell Hill.
Lowest point
- California's lowest point is Death Valley at -279 feet; Ohio's is Ohio River at 455 feet.
- California's lowest point is 734 feet lower.
California vs Ohio Population and History
Population
- California has a population of 39,431,263 (2024), while Ohio has 11,883,304 (2024).
- California's population is 3.3 times (232%) larger than Ohio's.
Population density
- California: 253.0 people per square mile vs Ohio: 290.8.
- Ohio's population density is 1.1 times (15%) higher than California's.
Biggest city
- California's biggest city is Los Angeles with 3,878,704 people; Ohio's is Columbus with 933,263.
- Los Angeles' population is 4.2 times (316%) larger than Columbus'.
Largest metro area
- California's largest metropolitan area is Los Angeles-Long Beach-Anaheim, CA metro area (12,927,614 people) vs Ohio's Cincinnati, OH-KY-IN metro area (2,302,815).
- Los Angeles-Long Beach-Anaheim, CA metro area's population is 5.6 times (461%) larger than Cincinnati, OH-KY-IN metro area's.
History
- California: Admitted to the Union on September 9, 1850, as the 31st state.
- Ohio: Admitted to the Union on March 1, 1803, as the 17th state.
- In its current form, Ohio is the older of the two by 47 years.
California vs Ohio Economy
GDP
- California's GDP is $4,048.1 billion (2024) vs Ohio's $923.1 billion.
- California's economic output is 4.4 times (339%) larger than Ohio's.
GDP per capita
- California: $102,662 per person vs Ohio: $77,684.
- California's GDP per capita is 1.3 times (32%) higher than Ohio's.
Average income
- California: $86,232 vs Ohio: $64,464 average income per person (per capita personal income).
- California's average income is 1.3 times (34%) higher than Ohio's.
California vs Ohio Counties
Number of counties
- California has 58 counties, while Ohio has 88.
- Ohio's county count is 1.5 times (52%) higher than California's.
Biggest county by area
- California's largest county is San Bernardino County at 20,068 square miles; Ohio's is Ashtabula County at 702 square miles.
- San Bernardino County's land area is 28.6 times larger than Ashtabula County's.
Smallest county by area
- California: San Francisco County (47 sq mi) vs Ohio: Lake County (229 sq mi).
- Lake County's land area is 4.9 times (391%) larger than San Francisco County's.
Most populous county
- California: Los Angeles County (9,757,179 people) vs Ohio: Franklin County (1,356,303 people).
- Los Angeles County's population is 7.2 times (619%) larger than Franklin County's.
Least populous county
- California: Alpine County (1,099 people) vs Ohio: Vinton County (12,545 people).
- Vinton County's population is 11.4 times larger than Alpine County's.
Richest county
- California: Marin County ($190,891 per capita income) vs Ohio: Delaware County ($96,573).
- Marin County's income is 2.0 times (98%) richer than Delaware County's.
Poorest county
- California: Trinity County ($42,191 per capita income) vs Ohio: Noble County ($34,940).
- Trinity County's income is 1.2 times (21%) richer than Noble County's.
California vs Ohio Taxes
State income tax
- California has a top income tax rate of 13.3%, while Ohio has a top income tax rate of 2.75%.
- California's top rate is 10.55 percentage points higher.
Property tax
- California: 0.71% effective rate vs Ohio: 1.22% of home value per year.
- Ohio's rate is 0.51 percentage points higher.
Sales tax
- California: 9.03% combined state and average local rate vs Ohio: 7.29%.
- California's combined rate is 1.74 percentage points higher.
Official Websites
California official website · Ohio official website
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More Size Comparisons
All California size comparisons · All Ohio 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.