The map above shows New Hampshire and Ohio side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New Hampshire vs Ohio Geography
Land area: New Hampshire has a land area of 8,954 square miles (23,190 km²), while Ohio has 40,859 square miles (105,824 km²). Ohio's land area is 4.6 times (356%) larger than New Hampshire's.
Total area: New Hampshire: 9,350 square miles (24,216 km²) vs Ohio: 44,826 square miles (116,098 km²), including inland and coastal water. Ohio's total area is 4.8 times (379%) larger than New Hampshire's.
Length: New Hampshire is 180 miles (290 km) long from north to south; Ohio is 291 miles (468 km). Ohio's north-south length is 1.6 times (62%) longer than New Hampshire's.
Width: New Hampshire spans 95 miles (152 km) east to west; Ohio spans 317 miles (510 km). Ohio's east-west width is 3.3 times (234%) wider than New Hampshire's.
Highest point: New Hampshire's highest point is Mount Washington at 6,277 feet (1,913 m); Ohio's is Campbell Hill at 1,547 feet (472 m). Mount Washington is 4,730 feet higher than Campbell Hill.
Lowest point: New Hampshire's lowest point is Atlantic Ocean at 0 feet; Ohio's is Ohio River at 455 feet. New Hampshire's lowest point is 455 feet lower.
New Hampshire vs Ohio Population and History
Population: New Hampshire has a population of 1,409,032 (2024), while Ohio has 11,883,304 (2024). Ohio's population is 8.4 times (743%) larger than New Hampshire's.
Population density: New Hampshire: 157.4 people per square mile vs Ohio: 290.8. Ohio's population density is 1.8 times (85%) higher than New Hampshire's.
Biggest city: New Hampshire's biggest city is Manchester with 116,386 people; Ohio's is Columbus with 933,263. Columbus' population is 8.0 times (702%) larger than Manchester's.
Largest metro area: New Hampshire's largest metropolitan area is Boston-Cambridge-Newton, MA-NH metro area (5,025,517 people) vs Ohio's Cincinnati, OH-KY-IN metro area (2,302,815). Boston-Cambridge-Newton, MA-NH metro area's population is 2.2 times (118%) larger than Cincinnati, OH-KY-IN metro area's.
History: New Hampshire: Admitted to the Union on June 21, 1788, as the 9th state. Ohio: Admitted to the Union on March 1, 1803, as the 17th state. In its current form, New Hampshire is the older of the two by 15 years.
New Hampshire vs Ohio Economy
GDP: New Hampshire's GDP is $119.3 billion (2024) vs Ohio's $923.1 billion. Ohio's economic output is 7.7 times (674%) larger than New Hampshire's.
GDP per capita: New Hampshire: $84,694 per person vs Ohio: $77,684. New Hampshire's GDP per capita is 1.1 times (9%) higher than Ohio's.
Average income: New Hampshire: $83,192 vs Ohio: $64,464 average income per person (per capita personal income). New Hampshire's average income is 1.3 times (29%) higher than Ohio's.
New Hampshire vs Ohio Counties
Number of counties: New Hampshire has 10 counties, while Ohio has 88. Ohio's county count is 8.8 times (780%) higher than New Hampshire's.
Biggest county by area: New Hampshire's largest county is Coos County at 1,795 square miles; Ohio's is Ashtabula County at 702 square miles. Coos County's land area is 2.6 times (155%) larger than Ashtabula County's.
Smallest county by area: New Hampshire: Strafford County (368 sq mi) vs Ohio: Lake County (229 sq mi). Strafford County's land area is 1.6 times (60%) larger than Lake County's.
Most populous county: New Hampshire: Hillsborough County (430,462 people) vs Ohio: Franklin County (1,356,303 people). Franklin County's population is 3.2 times (215%) larger than Hillsborough County's.
Least populous county: New Hampshire: Coos County (31,094 people) vs Ohio: Vinton County (12,545 people). Coos County's population is 2.5 times (148%) larger than Vinton County's.
Richest county: New Hampshire: Rockingham County ($100,216 per capita income) vs Ohio: Delaware County ($96,573). Rockingham County and Delaware County have about the same income.
Poorest county: New Hampshire: Coos County ($60,657 per capita income) vs Ohio: Noble County ($34,940). Coos County's income is 1.7 times (74%) richer than Noble County's.
New Hampshire vs Ohio Taxes
State income tax: New Hampshire has no state income tax, while Ohio has a top income tax rate of 2.75%. Ohio's top rate is 2.75 percentage points higher.
Property tax: New Hampshire: 1.46% effective rate vs Ohio: 1.22% of home value per year. New Hampshire's rate is 0.24 percentage points higher.
Sales tax: New Hampshire: 0% combined state and average local rate vs Ohio: 7.29%. Ohio's combined rate is 7.29 percentage points higher.
Official Websites
New Hampshire official website · Ohio official website
More Size Comparisons
All New Hampshire 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.