The map above shows Indiana and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Indiana vs Washington Geography
Land area: Indiana has a land area of 35,825 square miles (92,787 km²), while Washington has 66,455 square miles (172,119 km²). Washington's land area is 1.9 times (85%) larger than Indiana's.
Total area: Indiana: 36,421 square miles (94,331 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water. Washington's total area is 2.0 times (96%) larger than Indiana's.
Length: Indiana is 276 miles (444 km) long from north to south; Washington is 238 miles (383 km). Indiana's north-south length is 1.2 times (16%) longer than Washington's.
Width: Indiana spans 193 miles (310 km) east to west; Washington spans 399 miles (641 km). Washington's east-west width is 2.1 times (107%) wider than Indiana's.
Highest point: Indiana's highest point is Hoosier Hill at 1,255 feet (383 m); Washington's is Mount Rainier at 14,409 feet (4,392 m). Mount Rainier is 13,154 feet higher than Hoosier Hill.
Lowest point: Indiana's lowest point is Ohio River at 330 feet; Washington's is Pacific Ocean at 0 feet. Washington's lowest point is 330 feet lower.
Indiana vs Washington Population and History
Population: Indiana has a population of 6,924,275 (2024), while Washington has 7,958,180 (2024). Washington's population is 1.1 times (15%) larger than Indiana's.
Population density: Indiana: 193.3 people per square mile vs Washington: 119.8. Indiana's population density is 1.6 times (61%) higher than Washington's.
Biggest city: Indiana's biggest city is Indianapolis with 891,484 people; Washington's is Seattle with 780,995. Indianapolis' population is 1.1 times (14%) larger than Seattle's.
Largest metro area: Indiana's largest metropolitan area is Chicago-Naperville-Elgin, IL-IN metro area (9,408,576 people) vs Washington's Seattle-Tacoma-Bellevue, WA metro area (4,145,494). Chicago-Naperville-Elgin, IL-IN metro area's population is 2.3 times (127%) larger than Seattle-Tacoma-Bellevue, WA metro area's.
History: Indiana: Admitted to the Union on December 11, 1816, as the 19th state. Washington: Admitted to the Union on November 11, 1889, as the 42nd state. In its current form, Indiana is the older of the two by 73 years.
Indiana vs Washington Economy
GDP: Indiana's GDP is $519.5 billion (2024) vs Washington's $856.0 billion. Washington's economic output is 1.6 times (65%) larger than Indiana's.
GDP per capita: Indiana: $75,028 per person vs Washington: $107,564. Washington's GDP per capita is 1.4 times (43%) higher than Indiana's.
Average income: Indiana: $64,077 vs Washington: $85,187 average income per person (per capita personal income). Washington's average income is 1.3 times (33%) higher than Indiana's.
Indiana vs Washington Counties
Number of counties: Indiana has 92 counties, while Washington has 39. Indiana's county count is 2.4 times (136%) higher than Washington's.
Biggest county by area: Indiana's largest county is Allen County at 657 square miles; Washington's is Okanogan County at 5,266 square miles. Okanogan County's land area is 8.0 times (701%) larger than Allen County's.
Smallest county by area: Indiana: Ohio County (86 sq mi) vs Washington: San Juan County (174 sq mi). San Juan County's land area is 2.0 times (102%) larger than Ohio County's.
Most populous county: Indiana: Marion County (981,628 people) vs Washington: King County (2,340,211 people). King County's population is 2.4 times (138%) larger than Marion County's.
Least populous county: Indiana: Ohio County (5,996 people) vs Washington: Garfield County (2,404 people). Ohio County's population is 2.5 times (149%) larger than Garfield County's.
Richest county: Indiana: Hamilton County ($104,283 per capita income) vs Washington: King County ($128,684). King County's income is 1.2 times (23%) richer than Hamilton County's.
Poorest county: Indiana: Miami County ($44,940 per capita income) vs Washington: Ferry County ($50,456). Ferry County's income is 1.1 times (12%) richer than Miami County's.
Indiana vs Washington Taxes
State income tax: Indiana has a top income tax rate of 2.95%, while Washington has a 9% tax on capital gains only.
Property tax: Indiana: 0.74% effective rate vs Washington: 0.79% of home value per year. Washington's rate is 0.05 percentage points higher.
Sales tax: Indiana: 7% combined state and average local rate vs Washington: 9.57%. Washington's combined rate is 2.57 percentage points higher.
Official Websites
Indiana official website · Washington official website
More Size Comparisons
All Indiana size comparisons · All Washington 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.