The map above shows Delaware and Ohio side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Delaware vs Ohio Geography
Land area: Delaware has a land area of 1,949 square miles (5,047 km²), while Ohio has 40,859 square miles (105,824 km²). Ohio's land area is 21.0 times larger than Delaware's.
Total area: Delaware: 2,489 square miles (6,446 km²) vs Ohio: 44,826 square miles (116,098 km²), including inland and coastal water. Ohio's total area is 18.0 times larger than Delaware's.
Length: Delaware is 98 miles (158 km) long from north to south; Ohio is 291 miles (468 km). Ohio's north-south length is 3.0 times (197%) longer than Delaware's.
Width: Delaware spans 96 miles (155 km) east to west; Ohio spans 317 miles (510 km). Ohio's east-west width is 3.3 times (230%) wider than Delaware's.
Highest point: Delaware's highest point is Ebright Azimuth at 450 feet (137 m); Ohio's is Campbell Hill at 1,547 feet (472 m). Campbell Hill is 1,097 feet higher than Ebright Azimuth.
Lowest point: Delaware's lowest point is Atlantic Ocean at 0 feet; Ohio's is Ohio River at 455 feet. Delaware's lowest point is 455 feet lower.
Delaware vs Ohio Population and History
Population: Delaware has a population of 1,051,917 (2024), while Ohio has 11,883,304 (2024). Ohio's population is 11.3 times larger than Delaware's.
Population density: Delaware: 539.9 people per square mile vs Ohio: 290.8. Delaware's population density is 1.9 times (86%) higher than Ohio's.
Biggest city: Delaware's biggest city is Wilmington with 73,176 people; Ohio's is Columbus with 933,263. Columbus' population is 12.8 times 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 Ohio's Cincinnati, OH-KY-IN metro area (2,302,815). Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's population is 2.7 times (175%) larger than Cincinnati, OH-KY-IN metro area's.
History: Delaware: Admitted to the Union on December 7, 1787, as the 1st state. Ohio: Admitted to the Union on March 1, 1803, as the 17th state. In its current form, Delaware is the older of the two by 16 years.
Delaware vs Ohio Economy
GDP: Delaware's GDP is $111.0 billion (2024) vs Ohio's $923.1 billion. Ohio's economic output is 8.3 times (732%) larger than Delaware's.
GDP per capita: Delaware: $105,495 per person vs Ohio: $77,684. Delaware's GDP per capita is 1.4 times (36%) higher than Ohio's.
Average income: Delaware: $68,061 vs Ohio: $64,464 average income per person (per capita personal income). Delaware's average income is 1.1 times (6%) higher than Ohio's.
Delaware vs Ohio Counties
Number of counties: Delaware has 3 counties, while Ohio has 88. Ohio's county count is 29.3 times higher than Delaware's.
Biggest county by area: Delaware's largest county is Sussex County at 936 square miles; Ohio's is Ashtabula County at 702 square miles. Sussex County's land area is 1.3 times (33%) larger than Ashtabula County's.
Smallest county by area: Delaware: New Castle County (426 sq mi) vs Ohio: Lake County (229 sq mi). New Castle County's land area is 1.9 times (86%) larger than Lake County's.
Most populous county: Delaware: New Castle County (588,093 people) vs Ohio: Franklin County (1,356,303 people). Franklin County's population is 2.3 times (131%) larger than New Castle County's.
Least populous county: Delaware: Kent County (192,690 people) vs Ohio: Vinton County (12,545 people). Kent County's population is 15.4 times larger than Vinton County's.
Richest county: Delaware: Sussex County ($73,647 per capita income) vs Ohio: Delaware County ($96,573). Delaware County's income is 1.3 times (31%) richer than Sussex County's.
Poorest county: Delaware: Kent County ($55,474 per capita income) vs Ohio: Noble County ($34,940). Kent County's income is 1.6 times (59%) richer than Noble County's.
Delaware vs Ohio Taxes
State income tax: Delaware has a top income tax rate of 6.6%, while Ohio has a top income tax rate of 2.75%. Delaware's top rate is 3.85 percentage points higher.
Property tax: Delaware: 0.47% effective rate vs Ohio: 1.22% of home value per year. Ohio's rate is 0.75 percentage points higher.
Sales tax: Delaware: 0% combined state and average local rate vs Ohio: 7.29%. Ohio's combined rate is 7.29 percentage points higher.
Official Websites
Delaware official website · Ohio official website
More Size Comparisons
All Delaware 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.