The map above shows Indiana and Wisconsin side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Indiana vs Wisconsin Geography
Land area: Indiana has a land area of 35,825 square miles (92,787 km²), while Wisconsin has 54,168 square miles (140,294 km²). Wisconsin's land area is 1.5 times (51%) larger than Indiana's.
Total area: Indiana: 36,421 square miles (94,331 km²) vs Wisconsin: 65,497 square miles (169,636 km²), including inland and coastal water. Wisconsin's total area is 1.8 times (80%) larger than Indiana's.
Length: Indiana is 276 miles (444 km) long from north to south; Wisconsin is 368 miles (593 km). Wisconsin's north-south length is 1.3 times (33%) longer than Indiana's.
Width: Indiana spans 193 miles (310 km) east to west; Wisconsin spans 323 miles (521 km). Wisconsin's east-west width is 1.7 times (67%) wider than Indiana's.
Highest point: Indiana's highest point is Hoosier Hill at 1,255 feet (383 m); Wisconsin's is Timms Hill at 1,946 feet (593 m). Timms Hill is 691 feet higher than Hoosier Hill.
Lowest point: Indiana's lowest point is Ohio River at 330 feet; Wisconsin's is Lake Michigan at 577 feet. Indiana's lowest point is 247 feet lower.
Indiana vs Wisconsin Population and History
Population: Indiana has a population of 6,924,275 (2024), while Wisconsin has 5,960,975 (2024). Indiana's population is 1.2 times (16%) larger than Wisconsin's.
Population density: Indiana: 193.3 people per square mile vs Wisconsin: 110.0. Indiana's population density is 1.8 times (76%) higher than Wisconsin's.
Biggest city: Indiana's biggest city is Indianapolis with 891,484 people; Wisconsin's is Milwaukee with 563,531. Indianapolis' population is 1.6 times (58%) larger than Milwaukee's.
Largest metro area: Indiana's largest metropolitan area is Chicago-Naperville-Elgin, IL-IN metro area (9,408,576 people) vs Wisconsin's Minneapolis-St. Paul-Bloomington, MN-WI metro area (3,757,952). Chicago-Naperville-Elgin, IL-IN metro area's population is 2.5 times (150%) larger than Minneapolis-St. Paul-Bloomington, MN-WI metro area's.
History: Indiana: Admitted to the Union on December 11, 1816, as the 19th state. Wisconsin: Admitted to the Union on May 29, 1848, as the 30th state. In its current form, Indiana is the older of the two by 32 years.
Indiana vs Wisconsin Economy
GDP: Indiana's GDP is $519.5 billion (2024) vs Wisconsin's $453.3 billion. Indiana's economic output is 1.1 times (15%) larger than Wisconsin's.
GDP per capita: Indiana: $75,028 per person vs Wisconsin: $76,044. Indiana and Wisconsin have about the same GDP per capita.
Average income: Indiana: $64,077 vs Wisconsin: $67,755 average income per person (per capita personal income). Wisconsin's average income is 1.1 times (6%) higher than Indiana's.
Indiana vs Wisconsin Counties
Number of counties: Indiana has 92 counties, while Wisconsin has 72. Indiana's county count is 1.3 times (28%) higher than Wisconsin's.
Biggest county by area: Indiana's largest county is Allen County at 657 square miles; Wisconsin's is Marathon County at 1,545 square miles. Marathon County's land area is 2.4 times (135%) larger than Allen County's.
Smallest county by area: Indiana: Ohio County (86 sq mi) vs Wisconsin: Pepin County (232 sq mi). Pepin County's land area is 2.7 times (169%) larger than Ohio County's.
Most populous county: Indiana: Marion County (981,628 people) vs Wisconsin: Milwaukee County (924,740 people). Marion County's population is 1.1 times (6%) larger than Milwaukee County's.
Least populous county: Indiana: Ohio County (5,996 people) vs Wisconsin: Menominee County (4,286 people). Ohio County's population is 1.4 times (40%) larger than Menominee County's.
Richest county: Indiana: Hamilton County ($104,283 per capita income) vs Wisconsin: Ozaukee County ($109,947). Ozaukee County's income is 1.1 times (5%) richer than Hamilton County's.
Poorest county: Indiana: Miami County ($44,940 per capita income) vs Wisconsin: Menominee County ($43,696). Miami County and Menominee County have about the same income.
Indiana vs Wisconsin Taxes
State income tax: Indiana has a top income tax rate of 2.95%, while Wisconsin has a top income tax rate of 7.65%. Wisconsin's top rate is 4.7 percentage points higher.
Property tax: Indiana: 0.74% effective rate vs Wisconsin: 1.25% of home value per year. Wisconsin's rate is 0.51 percentage points higher.
Sales tax: Indiana: 7% combined state and average local rate vs Wisconsin: 5.72%. Indiana's combined rate is 1.28 percentage points higher.
Official Websites
Indiana official website · Wisconsin official website
More Size Comparisons
All Indiana size comparisons · All Wisconsin 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.