The map above shows Indiana and Maryland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Indiana vs Maryland Geography
Land area
- Indiana has a land area of 35,825 square miles (92,787 km²), while Maryland has 9,711 square miles (25,151 km²).
- Indiana's land area is 3.7 times (269%) larger than Maryland's.
Total area
- Indiana: 36,421 square miles (94,331 km²) vs Maryland: 12,406 square miles (32,131 km²), including inland and coastal water.
- Indiana's total area is 2.9 times (194%) larger than Maryland's.
Length
- Indiana is 276 miles (444 km) long from north to south; Maryland is 231 miles (371 km).
- Indiana's north-south length is 1.2 times (19%) longer than Maryland's.
Width
- Indiana spans 193 miles (310 km) east to west; Maryland spans 243 miles (391 km).
- Maryland's east-west width is 1.3 times (26%) wider than Indiana's.
Highest point
- Indiana's highest point is Hoosier Hill at 1,255 feet (383 m); Maryland's is Hoye-Crest at 3,362 feet (1,025 m).
- Hoye-Crest is 2,107 feet higher than Hoosier Hill.
Lowest point
- Indiana's lowest point is Ohio River at 330 feet; Maryland's is Atlantic Ocean at 0 feet.
- Maryland's lowest point is 330 feet lower.
Indiana vs Maryland Population and History
Population
- Indiana has a population of 6,924,275 (2024), while Maryland has 6,263,220 (2024).
- Indiana's population is 1.1 times (11%) larger than Maryland's.
Population density
- Indiana: 193.3 people per square mile vs Maryland: 645.0.
- Maryland's population density is 3.3 times (234%) higher than Indiana's.
Biggest city
- Indiana's biggest city is Indianapolis with 891,484 people; Maryland's is Baltimore with 568,271.
- Indianapolis' population is 1.6 times (57%) larger than Baltimore's.
Largest metro area
- Indiana's largest metropolitan area is Chicago-Naperville-Elgin, IL-IN metro area (9,408,576 people) vs Maryland's Washington-Arlington-Alexandria, DC-VA-MD-WV metro area (6,436,489).
- 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
- Indiana: Admitted to the Union on December 11, 1816, as the 19th state.
- Maryland: Admitted to the Union on April 28, 1788, as the 7th state.
- In its current form, Maryland is the older of the two by 28 years.
Indiana vs Maryland Economy
GDP
- Indiana's GDP is $519.5 billion (2024) vs Maryland's $546.0 billion.
- Maryland's economic output is 1.1 times (5%) larger than Indiana's.
GDP per capita
- Indiana: $75,028 per person vs Maryland: $87,180.
- Maryland's GDP per capita is 1.2 times (16%) higher than Indiana's.
Average income
- Indiana: $64,077 vs Maryland: $79,259 average income per person (per capita personal income).
- Maryland's average income is 1.2 times (24%) higher than Indiana's.
Indiana vs Maryland Counties
Number of counties
- Indiana has 92 counties, while Maryland has 24.
- Indiana's county count is 3.8 times (283%) higher than Maryland's.
Biggest county by area
- Indiana's largest county is Allen County at 657 square miles; Maryland's is Frederick County at 661 square miles.
- Allen County and Frederick County have about the same land area.
Smallest county by area
- Indiana: Ohio County (86 sq mi) vs Maryland: Baltimore city (81 sq mi).
- Ohio County's land area is 1.1 times (7%) larger than Baltimore city's.
Most populous county
- Indiana: Marion County (981,628 people) vs Maryland: Montgomery County (1,082,273 people).
- Montgomery County's population is 1.1 times (10%) larger than Marion County's.
Least populous county
- Indiana: Ohio County (5,996 people) vs Maryland: Kent County (19,557 people).
- Kent County's population is 3.3 times (226%) larger than Ohio County's.
Richest county
- Indiana: Hamilton County ($104,283 per capita income) vs Maryland: Montgomery County ($104,882).
- Hamilton County and Montgomery County have about the same income.
Poorest county
- Indiana: Miami County ($44,940 per capita income) vs Maryland: Somerset County ($41,421).
- Miami County's income is 1.1 times (8%) richer than Somerset County's.
Indiana vs Maryland Taxes
State income tax
- Indiana has a top income tax rate of 2.95%, while Maryland has a top income tax rate of 6.5%.
- Maryland's top rate is 3.55 percentage points higher.
Property tax
- Indiana: 0.74% effective rate vs Maryland: 0.95% of home value per year.
- Maryland's rate is 0.21 percentage points higher.
Sales tax
- Indiana: 7% combined state and average local rate vs Maryland: 6%.
- Indiana's combined rate is 1 percentage points higher.
Official Websites
Indiana official website · Maryland official website
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More Size Comparisons
All Indiana size comparisons · All Maryland 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.