The map above shows Massachusetts and Ohio side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Massachusetts vs Ohio Geography
Land area
- Massachusetts has a land area of 7,801 square miles (20,204 km²), while Ohio has 40,859 square miles (105,824 km²).
- Ohio's land area is 5.2 times (424%) larger than Massachusetts'.
Total area
- Massachusetts: 10,554 square miles (27,335 km²) vs Ohio: 44,826 square miles (116,098 km²), including inland and coastal water.
- Ohio's total area is 4.2 times (325%) larger than Massachusetts'.
Length
- Massachusetts is 123 miles (198 km) long from north to south; Ohio is 291 miles (468 km).
- Ohio's north-south length is 2.4 times (137%) longer than Massachusetts'.
Width
- Massachusetts spans 185 miles (297 km) east to west; Ohio spans 317 miles (510 km).
- Ohio's east-west width is 1.7 times (71%) wider than Massachusetts'.
Highest point
- Massachusetts's highest point is Mount Greylock at 3,489 feet (1,063 m); Ohio's is Campbell Hill at 1,547 feet (472 m).
- Mount Greylock is 1,942 feet higher than Campbell Hill.
Lowest point
- Massachusetts's lowest point is Atlantic Ocean at 0 feet; Ohio's is Ohio River at 455 feet.
- Massachusetts's lowest point is 455 feet lower.
Massachusetts vs Ohio Population and History
Population
- Massachusetts has a population of 7,136,171 (2024), while Ohio has 11,883,304 (2024).
- Ohio's population is 1.7 times (67%) larger than Massachusetts'.
Population density
- Massachusetts: 914.8 people per square mile vs Ohio: 290.8.
- Massachusetts' population density is 3.1 times (215%) higher than Ohio's.
Biggest city
- Massachusetts's biggest city is Boston with 673,458 people; Ohio's is Columbus with 933,263.
- Columbus' population is 1.4 times (39%) larger than Boston's.
Largest metro area
- Massachusetts'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
- Massachusetts: Admitted to the Union on February 6, 1788, as the 6th state.
- Ohio: Admitted to the Union on March 1, 1803, as the 17th state.
- In its current form, Massachusetts is the older of the two by 15 years.
Massachusetts vs Ohio Economy
GDP
- Massachusetts's GDP is $778.5 billion (2024) vs Ohio's $923.1 billion.
- Ohio's economic output is 1.2 times (19%) larger than Massachusetts'.
GDP per capita
- Massachusetts: $109,095 per person vs Ohio: $77,684.
- Massachusetts' GDP per capita is 1.4 times (40%) higher than Ohio's.
Average income
- Massachusetts: $93,607 vs Ohio: $64,464 average income per person (per capita personal income).
- Massachusetts' average income is 1.5 times (45%) higher than Ohio's.
Massachusetts vs Ohio Counties
Number of counties
- Massachusetts has 14 counties, while Ohio has 88.
- Ohio's county count is 6.3 times (529%) higher than Massachusetts'.
Biggest county by area
- Massachusetts's largest county is Worcester County at 1,511 square miles; Ohio's is Ashtabula County at 702 square miles.
- Worcester County's land area is 2.2 times (115%) larger than Ashtabula County's.
Smallest county by area
- Massachusetts: Nantucket County (46 sq mi) vs Ohio: Lake County (229 sq mi).
- Lake County's land area is 5.0 times (397%) larger than Nantucket County's.
Most populous county
- Massachusetts: Middlesex County (1,668,956 people) vs Ohio: Franklin County (1,356,303 people).
- Middlesex County's population is 1.2 times (23%) larger than Franklin County's.
Least populous county
- Massachusetts: Nantucket County (14,670 people) vs Ohio: Vinton County (12,545 people).
- Nantucket County's population is 1.2 times (17%) larger than Vinton County's.
Richest county
- Massachusetts: Nantucket County ($129,250 per capita income) vs Ohio: Delaware County ($96,573).
- Nantucket County's income is 1.3 times (34%) richer than Delaware County's.
Poorest county
- Massachusetts: Hampshire County ($65,432 per capita income) vs Ohio: Noble County ($34,940).
- Hampshire County's income is 1.9 times (87%) richer than Noble County's.
Massachusetts vs Ohio Taxes
State income tax
- Massachusetts has a top income tax rate of 9%, while Ohio has a top income tax rate of 2.75%.
- Massachusetts's top rate is 6.25 percentage points higher.
Property tax
- Massachusetts: 1% effective rate vs Ohio: 1.22% of home value per year.
- Ohio's rate is 0.22 percentage points higher.
Sales tax
- Massachusetts: 6.25% combined state and average local rate vs Ohio: 7.29%.
- Ohio's combined rate is 1.04 percentage points higher.
Official Websites
Massachusetts official website · Ohio official website
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More Size Comparisons
All Massachusetts 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.