The map above shows District of Columbia and Indiana side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
District of Columbia vs Indiana Geography
Land area: District of Columbia has a land area of 61 square miles (158 km²), while Indiana has 35,825 square miles (92,787 km²). Indiana's land area is 587.3 times larger than District of Columbia's.
Total area: District of Columbia: 68 square miles (177 km²) vs Indiana: 36,421 square miles (94,331 km²), including inland and coastal water. Indiana's total area is 532.9 times larger than District of Columbia's.
Length: District of Columbia is 13 miles (22 km) long from north to south; Indiana is 276 miles (444 km). Indiana's north-south length is 21.2 times longer than District of Columbia's.
Width: District of Columbia spans 12 miles (19 km) east to west; Indiana spans 193 miles (310 km). Indiana's east-west width is 16.1 times wider than District of Columbia's.
Highest point: District of Columbia's highest point is Fort Reno at 429 feet (131 m); Indiana's is Hoosier Hill at 1,255 feet (383 m). Hoosier Hill is 826 feet higher than Fort Reno.
Lowest point: District of Columbia's lowest point is Potomac River at 0 feet; Indiana's is Ohio River at 330 feet. District of Columbia's lowest point is 330 feet lower.
District of Columbia vs Indiana Population and History
Population: District of Columbia has a population of 702,250 (2024), while Indiana has 6,924,275 (2024). Indiana's population is 9.9 times (886%) larger than District of Columbia's.
Population density: District of Columbia: 11,493.5 people per square mile vs Indiana: 193.3. District of Columbia's population density is 59.5 times higher than Indiana's.
Biggest city: District of Columbia's biggest city is Washington with 702,250 people; Indiana's is Indianapolis with 891,484. Indianapolis' population is 1.3 times (27%) larger than Washington's.
Largest metro area: District of Columbia's largest metropolitan area is Washington-Arlington-Alexandria, DC-VA-MD-WV metro area (6,436,489 people) vs Indiana's Chicago-Naperville-Elgin, IL-IN metro area (9,408,576). Chicago-Naperville-Elgin, IL-IN metro area's population is 1.5 times (46%) larger than Washington-Arlington-Alexandria, DC-VA-MD-WV metro area's.
History: District of Columbia: The federal district, established by the Residence Act on July 16, 1790; not a state. Indiana: Admitted to the Union on December 11, 1816, as the 19th state. In its current form, District of Columbia is the older of the two by 26 years.
District of Columbia vs Indiana Economy
GDP: District of Columbia's GDP is $184.3 billion (2024) vs Indiana's $519.5 billion. Indiana's economic output is 2.8 times (182%) larger than District of Columbia's.
GDP per capita: District of Columbia: $262,439 per person vs Indiana: $75,028. District of Columbia's GDP per capita is 3.5 times (250%) higher than Indiana's.
Average income: District of Columbia: $111,185 vs Indiana: $64,077 average income per person (per capita personal income). District of Columbia's average income is 1.7 times (74%) higher than Indiana's.
District of Columbia vs Indiana Counties
Number of counties: District of Columbia has 1 counties, while Indiana has 92. Indiana's county count is 92.0 times higher than District of Columbia's.
Biggest county by area: District of Columbia's largest county is District of Columbia at 61 square miles; Indiana's is Allen County at 657 square miles. Allen County's land area is 10.8 times larger than District of Columbia's.
Smallest county by area: District of Columbia: District of Columbia (61 sq mi) vs Indiana: Ohio County (86 sq mi). Ohio County's land area is 1.4 times (41%) larger than District of Columbia's.
Most populous county: District of Columbia: District of Columbia (702,250 people) vs Indiana: Marion County (981,628 people). Marion County's population is 1.4 times (40%) larger than District of Columbia's.
Least populous county: District of Columbia: District of Columbia (702,250 people) vs Indiana: Ohio County (5,996 people). District of Columbia's population is 117.1 times larger than Ohio County's.
Richest county: District of Columbia: District of Columbia ($111,185 per capita income) vs Indiana: Hamilton County ($104,283). District of Columbia's income is 1.1 times (7%) richer than Hamilton County's.
Poorest county: District of Columbia: District of Columbia ($111,185 per capita income) vs Indiana: Miami County ($44,940). District of Columbia's income is 2.5 times (147%) richer than Miami County's.
District of Columbia vs Indiana Taxes
State income tax: District of Columbia has a top income tax rate of 10.75%, while Indiana has a top income tax rate of 2.95%. District of Columbia's top rate is 7.8 percentage points higher.
Property tax: District of Columbia: 0.63% effective rate vs Indiana: 0.74% of home value per year. Indiana's rate is 0.11 percentage points higher.
Sales tax: District of Columbia: 6% combined state and average local rate vs Indiana: 7%. Indiana's combined rate is 1 percentage points higher.
Official Websites
District of Columbia official website · Indiana official website
More Size Comparisons
All District of Columbia size comparisons · All Indiana 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.