The map above shows Maine and Maryland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Maine vs Maryland Geography
Land area: Maine has a land area of 30,845 square miles (79,888 km²), while Maryland has 9,711 square miles (25,151 km²). Maine's land area is 3.2 times (218%) larger than Maryland's.
Total area: Maine: 35,380 square miles (91,634 km²) vs Maryland: 12,406 square miles (32,131 km²), including inland and coastal water. Maine's total area is 2.9 times (185%) larger than Maryland's.
Length: Maine is 311 miles (501 km) long from north to south; Maryland is 231 miles (371 km). Maine's north-south length is 1.3 times (35%) longer than Maryland's.
Width: Maine spans 203 miles (327 km) east to west; Maryland spans 243 miles (391 km). Maryland's east-west width is 1.2 times (20%) wider than Maine's.
Highest point: Maine's highest point is Mount Katahdin at 5,253 feet (1,601 m); Maryland's is Hoye-Crest at 3,362 feet (1,025 m). Mount Katahdin is 1,891 feet higher than Hoye-Crest.
Lowest point: Maine's lowest point is Atlantic Ocean at 0 feet; Maryland's is Atlantic Ocean at 0 feet. Both lowest points are at or near sea level.
Maine vs Maryland Population and History
Population: Maine has a population of 1,405,012 (2024), while Maryland has 6,263,220 (2024). Maryland's population is 4.5 times (346%) larger than Maine's.
Population density: Maine: 45.6 people per square mile vs Maryland: 645.0. Maryland's population density is 14.1 times higher than Maine's.
Biggest city: Maine's biggest city is Portland with 69,568 people; Maryland's is Baltimore with 568,271. Baltimore's population is 8.2 times (717%) larger than Portland's.
Largest metro area: Maine's largest metropolitan area is Portland-South Portland, ME metro area (571,534 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 11.3 times larger than Portland-South Portland, ME metro area's.
History: Maine: Admitted to the Union on March 15, 1820, as the 23rd 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 32 years.
Maine vs Maryland Economy
GDP: Maine's GDP is $99.2 billion (2024) vs Maryland's $546.0 billion. Maryland's economic output is 5.5 times (450%) larger than Maine's.
GDP per capita: Maine: $70,586 per person vs Maryland: $87,180. Maryland's GDP per capita is 1.2 times (24%) higher than Maine's.
Average income: Maine: $68,932 vs Maryland: $79,259 average income per person (per capita personal income). Maryland's average income is 1.1 times (15%) higher than Maine's.
Maine vs Maryland Counties
Number of counties: Maine has 16 counties, while Maryland has 24. Maryland's county count is 1.5 times (50%) higher than Maine's.
Biggest county by area: Maine's largest county is Aroostook County at 6,671 square miles; Maryland's is Frederick County at 661 square miles. Aroostook County's land area is 10.1 times larger than Frederick County's.
Smallest county by area: Maine: Sagadahoc County (254 sq mi) vs Maryland: Baltimore city (81 sq mi). Sagadahoc County's land area is 3.1 times (214%) larger than Baltimore city's.
Most populous county: Maine: Cumberland County (313,809 people) vs Maryland: Montgomery County (1,082,273 people). Montgomery County's population is 3.4 times (245%) larger than Cumberland County's.
Least populous county: Maine: Piscataquis County (17,432 people) vs Maryland: Kent County (19,557 people). Kent County's population is 1.1 times (12%) larger than Piscataquis County's.
Richest county: Maine: Cumberland County ($90,142 per capita income) vs Maryland: Montgomery County ($104,882). Montgomery County's income is 1.2 times (16%) richer than Cumberland County's.
Poorest county: Maine: Franklin County ($52,725 per capita income) vs Maryland: Somerset County ($41,421). Franklin County's income is 1.3 times (27%) richer than Somerset County's.
Maine vs Maryland Taxes
State income tax: Maine has a top income tax rate of 7.15%, while Maryland has a top income tax rate of 6.5%. Maine's top rate is 0.65 percentage points higher.
Property tax: Maine: 0.91% effective rate vs Maryland: 0.95% of home value per year. Maryland's rate is 0.04 percentage points higher.
Sales tax: Maine: 5.5% combined state and average local rate vs Maryland: 6%. Maryland's combined rate is 0.5 percentage points higher.
Official Websites
Maine official website · Maryland official website
More Size Comparisons
All Maine 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.