The map above shows Maine and Pennsylvania side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Maine vs Pennsylvania Geography
Land area: Maine has a land area of 30,845 square miles (79,888 km²), while Pennsylvania has 44,742 square miles (115,882 km²). Pennsylvania's land area is 1.5 times (45%) larger than Maine's.
Total area: Maine: 35,380 square miles (91,634 km²) vs Pennsylvania: 46,054 square miles (119,279 km²), including inland and coastal water. Pennsylvania's total area is 1.3 times (30%) larger than Maine's.
Length: Maine is 311 miles (501 km) long from north to south; Pennsylvania is 284 miles (458 km). Maine's north-south length is 1.1 times (10%) longer than Pennsylvania's.
Width: Maine spans 203 miles (327 km) east to west; Pennsylvania spans 307 miles (495 km). Pennsylvania's east-west width is 1.5 times (51%) wider than Maine's.
Highest point: Maine's highest point is Mount Katahdin at 5,253 feet (1,601 m); Pennsylvania's is Mount Davis at 3,210 feet (978 m). Mount Katahdin is 2,043 feet higher than Mount Davis.
Lowest point: Maine's lowest point is Atlantic Ocean at 0 feet; Pennsylvania's is Delaware River at 0 feet. Both lowest points are at or near sea level.
Maine vs Pennsylvania Population and History
Population: Maine has a population of 1,405,012 (2024), while Pennsylvania has 13,078,751 (2024). Pennsylvania's population is 9.3 times (831%) larger than Maine's.
Population density: Maine: 45.6 people per square mile vs Pennsylvania: 292.3. Pennsylvania's population density is 6.4 times (541%) higher than Maine's.
Biggest city: Maine's biggest city is Portland with 69,568 people; Pennsylvania's is Philadelphia with 1,573,916. Philadelphia's population is 22.6 times larger than Portland's.
Largest metro area: Maine's largest metropolitan area is Portland-South Portland, ME metro area (571,534 people) vs Pennsylvania's Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422). Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's population is 11.1 times larger than Portland-South Portland, ME metro area's.
History: Maine: Admitted to the Union on March 15, 1820, as the 23rd state. Pennsylvania: Admitted to the Union on December 12, 1787, as the 2nd state. In its current form, Pennsylvania is the older of the two by 33 years.
Maine vs Pennsylvania Economy
GDP: Maine's GDP is $99.2 billion (2024) vs Pennsylvania's $1,007.9 billion. Pennsylvania's economic output is 10.2 times larger than Maine's.
GDP per capita: Maine: $70,586 per person vs Pennsylvania: $77,062. Pennsylvania's GDP per capita is 1.1 times (9%) higher than Maine's.
Average income: Maine: $68,932 vs Pennsylvania: $70,678 average income per person (per capita personal income). Maine and Pennsylvania have about the same average income.
Maine vs Pennsylvania Counties
Number of counties: Maine has 16 counties, while Pennsylvania has 67. Pennsylvania's county count is 4.2 times (319%) higher than Maine's.
Biggest county by area: Maine's largest county is Aroostook County at 6,671 square miles; Pennsylvania's is Lycoming County at 1,229 square miles. Aroostook County's land area is 5.4 times (443%) larger than Lycoming County's.
Smallest county by area: Maine: Sagadahoc County (254 sq mi) vs Pennsylvania: Montour County (130 sq mi). Sagadahoc County's land area is 1.9 times (95%) larger than Montour County's.
Most populous county: Maine: Cumberland County (313,809 people) vs Pennsylvania: Philadelphia County (1,573,916 people). Philadelphia County's population is 5.0 times (402%) larger than Cumberland County's.
Least populous county: Maine: Piscataquis County (17,432 people) vs Pennsylvania: Cameron County (4,348 people). Piscataquis County's population is 4.0 times (301%) larger than Cameron County's.
Richest county: Maine: Cumberland County ($90,142 per capita income) vs Pennsylvania: Chester County ($110,883). Chester County's income is 1.2 times (23%) richer than Cumberland County's.
Poorest county: Maine: Franklin County ($52,725 per capita income) vs Pennsylvania: Forest County ($30,234). Franklin County's income is 1.7 times (74%) richer than Forest County's.
Maine vs Pennsylvania Taxes
State income tax: Maine has a top income tax rate of 7.15%, while Pennsylvania has a top income tax rate of 3.07%. Maine's top rate is 4.08 percentage points higher.
Property tax: Maine: 0.91% effective rate vs Pennsylvania: 1.16% of home value per year. Pennsylvania's rate is 0.25 percentage points higher.
Sales tax: Maine: 5.5% combined state and average local rate vs Pennsylvania: 6.34%. Pennsylvania's combined rate is 0.84 percentage points higher.
Official Websites
Maine official website · Pennsylvania official website
More Size Comparisons
All Maine size comparisons · All Pennsylvania 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.