The map above shows Iowa and Maryland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Iowa vs Maryland Geography
Land area
- Iowa has a land area of 55,854 square miles (144,660 km²), while Maryland has 9,711 square miles (25,151 km²).
- Iowa's land area is 5.8 times (475%) larger than Maryland's.
Total area
- Iowa: 56,273 square miles (145,746 km²) vs Maryland: 12,406 square miles (32,131 km²), including inland and coastal water.
- Iowa's total area is 4.5 times (354%) larger than Maryland's.
Length
- Iowa is 216 miles (347 km) long from north to south; Maryland is 231 miles (371 km).
- Maryland's north-south length is 1.1 times (7%) longer than Iowa's.
Width
- Iowa spans 335 miles (539 km) east to west; Maryland spans 243 miles (391 km).
- Iowa's east-west width is 1.4 times (38%) wider than Maryland's.
Highest point
- Iowa's highest point is Hawkeye Point at 1,669 feet (509 m); Maryland's is Hoye-Crest at 3,362 feet (1,025 m).
- Hoye-Crest is 1,693 feet higher than Hawkeye Point.
Lowest point
- Iowa's lowest point is Mississippi River at 480 feet; Maryland's is Atlantic Ocean at 0 feet.
- Maryland's lowest point is 480 feet lower.
Iowa vs Maryland Population and History
Population
- Iowa has a population of 3,241,488 (2024), while Maryland has 6,263,220 (2024).
- Maryland's population is 1.9 times (93%) larger than Iowa's.
Population density
- Iowa: 58.0 people per square mile vs Maryland: 645.0.
- Maryland's population density is 11.1 times higher than Iowa's.
Biggest city
- Iowa's biggest city is Des Moines with 213,096 people; Maryland's is Baltimore with 568,271.
- Baltimore's population is 2.7 times (167%) larger than Des Moines'.
Largest metro area
- Iowa's largest metropolitan area is Omaha, NE-IA metro area (1,001,010 people) vs Maryland's Washington-Arlington-Alexandria, DC-VA-MD-WV metro area (6,436,489).
- Washington-Arlington-Alexandria, DC-VA-MD-WV metro area's population is 6.4 times (543%) larger than Omaha, NE-IA metro area's.
History
- Iowa: Admitted to the Union on December 28, 1846, as the 29th 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 58 years.
Iowa vs Maryland Economy
GDP
- Iowa's GDP is $265.8 billion (2024) vs Maryland's $546.0 billion.
- Maryland's economic output is 2.1 times (105%) larger than Iowa's.
GDP per capita
- Iowa: $81,998 per person vs Maryland: $87,180.
- Maryland's GDP per capita is 1.1 times (6%) higher than Iowa's.
Average income
- Iowa: $65,225 vs Maryland: $79,259 average income per person (per capita personal income).
- Maryland's average income is 1.2 times (22%) higher than Iowa's.
Iowa vs Maryland Counties
Number of counties
- Iowa has 99 counties, while Maryland has 24.
- Iowa's county count is 4.1 times (313%) higher than Maryland's.
Biggest county by area
- Iowa's largest county is Kossuth County at 973 square miles; Maryland's is Frederick County at 661 square miles.
- Kossuth County's land area is 1.5 times (47%) larger than Frederick County's.
Smallest county by area
- Iowa: Dickinson County (381 sq mi) vs Maryland: Baltimore city (81 sq mi).
- Dickinson County's land area is 4.7 times (370%) larger than Baltimore city's.
Most populous county
- Iowa: Polk County (516,185 people) vs Maryland: Montgomery County (1,082,273 people).
- Montgomery County's population is 2.1 times (110%) larger than Polk County's.
Least populous county
- Iowa: Adams County (3,606 people) vs Maryland: Kent County (19,557 people).
- Kent County's population is 5.4 times (442%) larger than Adams County's.
Richest county
- Iowa: Mitchell County ($98,211 per capita income) vs Maryland: Montgomery County ($104,882).
- Montgomery County's income is 1.1 times (7%) richer than Mitchell County's.
Poorest county
- Iowa: Decatur County ($46,134 per capita income) vs Maryland: Somerset County ($41,421).
- Decatur County's income is 1.1 times (11%) richer than Somerset County's.
Iowa vs Maryland Taxes
State income tax
- Iowa has a top income tax rate of 3.8%, while Maryland has a top income tax rate of 6.5%.
- Maryland's top rate is 2.7 percentage points higher.
Property tax
- Iowa: 1.29% effective rate vs Maryland: 0.95% of home value per year.
- Iowa's rate is 0.34 percentage points higher.
Sales tax
- Iowa: 6.94% combined state and average local rate vs Maryland: 6%.
- Iowa's combined rate is 0.94 percentage points higher.
Official Websites
Iowa official website · Maryland official website
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More Size Comparisons
All Iowa 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.