The map above shows Indiana and Michigan side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Indiana vs Michigan Geography
Land area: Indiana has a land area of 35,825 square miles (92,787 km²), while Michigan has 56,611 square miles (146,622 km²). Michigan's land area is 1.6 times (58%) larger than Indiana's.
Total area: Indiana: 36,421 square miles (94,331 km²) vs Michigan: 96,713 square miles (250,486 km²), including inland and coastal water. Michigan's total area is 2.7 times (166%) larger than Indiana's.
Length: Indiana is 276 miles (444 km) long from north to south; Michigan is 489 miles (786 km). Michigan's north-south length is 1.8 times (77%) longer than Indiana's.
Width: Indiana spans 193 miles (310 km) east to west; Michigan spans 453 miles (728 km). Michigan's east-west width is 2.3 times (135%) wider than Indiana's.
Highest point: Indiana's highest point is Hoosier Hill at 1,255 feet (383 m); Michigan's is Mount Arvon at 2,014 feet (614 m). Mount Arvon is 759 feet higher than Hoosier Hill.
Lowest point: Indiana's lowest point is Ohio River at 330 feet; Michigan's is Lake Erie at 571 feet. Indiana's lowest point is 241 feet lower.
Indiana vs Michigan Population and History
Population: Indiana has a population of 6,924,275 (2024), while Michigan has 10,140,459 (2024). Michigan's population is 1.5 times (46%) larger than Indiana's.
Population density: Indiana: 193.3 people per square mile vs Michigan: 179.1. Indiana's population density is 1.1 times (8%) higher than Michigan's.
Biggest city: Indiana's biggest city is Indianapolis with 891,484 people; Michigan's is Detroit with 645,705. Indianapolis' population is 1.4 times (38%) larger than Detroit's.
Largest metro area: Indiana's largest metropolitan area is Chicago-Naperville-Elgin, IL-IN metro area (9,408,576 people) vs Michigan's Detroit-Warren-Dearborn, MI metro area (4,400,578). Chicago-Naperville-Elgin, IL-IN metro area's population is 2.1 times (114%) larger than Detroit-Warren-Dearborn, MI metro area's.
History: Indiana: Admitted to the Union on December 11, 1816, as the 19th state. Michigan: Admitted to the Union on January 26, 1837, as the 26th state. In its current form, Indiana is the older of the two by 21 years.
Indiana vs Michigan Economy
GDP: Indiana's GDP is $519.5 billion (2024) vs Michigan's $702.5 billion. Michigan's economic output is 1.4 times (35%) larger than Indiana's.
GDP per capita: Indiana: $75,028 per person vs Michigan: $69,274. Indiana's GDP per capita is 1.1 times (8%) higher than Michigan's.
Average income: Indiana: $64,077 vs Michigan: $63,690 average income per person (per capita personal income). Indiana and Michigan have about the same average income.
Indiana vs Michigan Counties
Number of counties: Indiana has 92 counties, while Michigan has 83. Indiana's county count is 1.1 times (11%) higher than Michigan's.
Biggest county by area: Indiana's largest county is Allen County at 657 square miles; Michigan's is Marquette County at 1,809 square miles. Marquette County's land area is 2.8 times (175%) larger than Allen County's.
Smallest county by area: Indiana: Ohio County (86 sq mi) vs Michigan: Benzie County (320 sq mi). Benzie County's land area is 3.7 times (271%) larger than Ohio County's.
Most populous county: Indiana: Marion County (981,628 people) vs Michigan: Wayne County (1,771,063 people). Wayne County's population is 1.8 times (80%) larger than Marion County's.
Least populous county: Indiana: Ohio County (5,996 people) vs Michigan: Keweenaw County (2,161 people). Ohio County's population is 2.8 times (177%) larger than Keweenaw County's.
Richest county: Indiana: Hamilton County ($104,283 per capita income) vs Michigan: Oakland County ($93,579). Hamilton County's income is 1.1 times (11%) richer than Oakland County's.
Poorest county: Indiana: Miami County ($44,940 per capita income) vs Michigan: Lake County ($39,505). Miami County's income is 1.1 times (14%) richer than Lake County's.
Indiana vs Michigan Taxes
State income tax: Indiana has a top income tax rate of 2.95%, while Michigan has a top income tax rate of 4.25%. Michigan's top rate is 1.3 percentage points higher.
Property tax: Indiana: 0.74% effective rate vs Michigan: 1.18% of home value per year. Michigan's rate is 0.44 percentage points higher.
Sales tax: Indiana: 7% combined state and average local rate vs Michigan: 6%. Indiana's combined rate is 1 percentage points higher.
Official Websites
Indiana official website · Michigan official website
More Size Comparisons
All Indiana size comparisons · All Michigan 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.