The map above shows Michigan and Ohio side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Michigan vs Ohio Geography
Land area: Michigan has a land area of 56,611 square miles (146,622 km²), while Ohio has 40,859 square miles (105,824 km²). Michigan's land area is 1.4 times (39%) larger than Ohio's.
Total area: Michigan: 96,713 square miles (250,486 km²) vs Ohio: 44,826 square miles (116,098 km²), including inland and coastal water. Michigan's total area is 2.2 times (116%) larger than Ohio's.
Length: Michigan is 489 miles (786 km) long from north to south; Ohio is 291 miles (468 km). Michigan's north-south length is 1.7 times (68%) longer than Ohio's.
Width: Michigan spans 453 miles (728 km) east to west; Ohio spans 317 miles (510 km). Michigan's east-west width is 1.4 times (43%) wider than Ohio's.
Highest point: Michigan's highest point is Mount Arvon at 2,014 feet (614 m); Ohio's is Campbell Hill at 1,547 feet (472 m). Mount Arvon is 467 feet higher than Campbell Hill.
Lowest point: Michigan's lowest point is Lake Erie at 571 feet; Ohio's is Ohio River at 455 feet. Ohio's lowest point is 116 feet lower.
Michigan vs Ohio Population and History
Population: Michigan has a population of 10,140,459 (2024), while Ohio has 11,883,304 (2024). Ohio's population is 1.2 times (17%) larger than Michigan's.
Population density: Michigan: 179.1 people per square mile vs Ohio: 290.8. Ohio's population density is 1.6 times (62%) higher than Michigan's.
Biggest city: Michigan's biggest city is Detroit with 645,705 people; Ohio's is Columbus with 933,263. Columbus' population is 1.4 times (45%) larger than Detroit's.
Largest metro area: Michigan's largest metropolitan area is Detroit-Warren-Dearborn, MI metro area (4,400,578 people) vs Ohio's Cincinnati, OH-KY-IN metro area (2,302,815). Detroit-Warren-Dearborn, MI metro area's population is 1.9 times (91%) larger than Cincinnati, OH-KY-IN metro area's.
History: Michigan: Admitted to the Union on January 26, 1837, as the 26th 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 34 years.
Michigan vs Ohio Economy
GDP: Michigan's GDP is $702.5 billion (2024) vs Ohio's $923.1 billion. Ohio's economic output is 1.3 times (31%) larger than Michigan's.
GDP per capita: Michigan: $69,274 per person vs Ohio: $77,684. Ohio's GDP per capita is 1.1 times (12%) higher than Michigan's.
Average income: Michigan: $63,690 vs Ohio: $64,464 average income per person (per capita personal income). Michigan and Ohio have about the same average income.
Michigan vs Ohio Counties
Number of counties: Michigan has 83 counties, while Ohio has 88. Ohio's county count is 1.1 times (6%) higher than Michigan's.
Biggest county by area: Michigan's largest county is Marquette County at 1,809 square miles; Ohio's is Ashtabula County at 702 square miles. Marquette County's land area is 2.6 times (158%) larger than Ashtabula County's.
Smallest county by area: Michigan: Benzie County (320 sq mi) vs Ohio: Lake County (229 sq mi). Benzie County's land area is 1.4 times (39%) larger than Lake County's.
Most populous county: Michigan: Wayne County (1,771,063 people) vs Ohio: Franklin County (1,356,303 people). Wayne County's population is 1.3 times (31%) larger than Franklin County's.
Least populous county: Michigan: Keweenaw County (2,161 people) vs Ohio: Vinton County (12,545 people). Vinton County's population is 5.8 times (481%) larger than Keweenaw County's.
Richest county: Michigan: Oakland County ($93,579 per capita income) vs Ohio: Delaware County ($96,573). Oakland County and Delaware County have about the same income.
Poorest county: Michigan: Lake County ($39,505 per capita income) vs Ohio: Noble County ($34,940). Lake County's income is 1.1 times (13%) richer than Noble County's.
Michigan vs Ohio Taxes
State income tax: Michigan has a top income tax rate of 4.25%, while Ohio has a top income tax rate of 2.75%. Michigan's top rate is 1.5 percentage points higher.
Property tax: Michigan: 1.18% effective rate vs Ohio: 1.22% of home value per year. Ohio's rate is 0.04 percentage points higher.
Sales tax: Michigan: 6% combined state and average local rate vs Ohio: 7.29%. Ohio's combined rate is 1.29 percentage points higher.
Official Websites
Michigan official website · Ohio official website
More Size Comparisons
All Michigan 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.