The map above shows Maine and New Jersey side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Maine vs New Jersey Geography
Land area
- Maine has a land area of 30,845 square miles (79,888 km²), while New Jersey has 7,355 square miles (19,049 km²).
- Maine's land area is 4.2 times (319%) larger than New Jersey's.
Total area
- Maine: 35,380 square miles (91,634 km²) vs New Jersey: 8,719 square miles (22,583 km²), including inland and coastal water.
- Maine's total area is 4.1 times (306%) larger than New Jersey's.
Length
- Maine is 311 miles (501 km) long from north to south; New Jersey is 169 miles (271 km).
- Maine's north-south length is 1.8 times (84%) longer than New Jersey's.
Width
- Maine spans 203 miles (327 km) east to west; New Jersey spans 129 miles (207 km).
- Maine's east-west width is 1.6 times (57%) wider than New Jersey's.
Highest point
- Maine's highest point is Mount Katahdin at 5,253 feet (1,601 m); New Jersey's is High Point at 1,798 feet (548 m).
- Mount Katahdin is 3,455 feet higher than High Point.
Lowest point
- Maine's lowest point is Atlantic Ocean at 0 feet; New Jersey's is Atlantic Ocean at 0 feet.
- Both lowest points are at or near sea level.
Maine vs New Jersey Population and History
Population
- Maine has a population of 1,405,012 (2024), while New Jersey has 9,500,851 (2024).
- New Jersey's population is 6.8 times (576%) larger than Maine's.
Population density
- Maine: 45.6 people per square mile vs New Jersey: 1,291.8.
- New Jersey's population density is 28.3 times higher than Maine's.
Biggest city
- Maine's biggest city is Portland with 69,568 people; New Jersey's is Newark with 317,303.
- Newark's population is 4.6 times (356%) larger than Portland's.
Largest metro area
- Maine's largest metropolitan area is Portland-South Portland, ME metro area (571,534 people) vs New Jersey's New York-Newark-Jersey City, NY-NJ metro area (19,940,274).
- New York-Newark-Jersey City, NY-NJ metro area's population is 34.9 times larger than Portland-South Portland, ME metro area's.
History
- Maine: Admitted to the Union on March 15, 1820, as the 23rd state.
- New Jersey: Admitted to the Union on December 18, 1787, as the 3rd state.
- In its current form, New Jersey is the older of the two by 33 years.
Maine vs New Jersey Economy
GDP
- Maine's GDP is $99.2 billion (2024) vs New Jersey's $846.0 billion.
- New Jersey's economic output is 8.5 times (753%) larger than Maine's.
GDP per capita
- Maine: $70,586 per person vs New Jersey: $89,045.
- New Jersey's GDP per capita is 1.3 times (26%) higher than Maine's.
Average income
- Maine: $68,932 vs New Jersey: $84,893 average income per person (per capita personal income).
- New Jersey's average income is 1.2 times (23%) higher than Maine's.
Maine vs New Jersey Counties
Number of counties
- Maine has 16 counties, while New Jersey has 21.
- New Jersey's county count is 1.3 times (31%) higher than Maine's.
Biggest county by area
- Maine's largest county is Aroostook County at 6,671 square miles; New Jersey's is Burlington County at 799 square miles.
- Aroostook County's land area is 8.3 times (735%) larger than Burlington County's.
Smallest county by area
- Maine: Sagadahoc County (254 sq mi) vs New Jersey: Hudson County (46 sq mi).
- Sagadahoc County's land area is 5.5 times (450%) larger than Hudson County's.
Most populous county
- Maine: Cumberland County (313,809 people) vs New Jersey: Bergen County (978,641 people).
- Bergen County's population is 3.1 times (212%) larger than Cumberland County's.
Least populous county
- Maine: Piscataquis County (17,432 people) vs New Jersey: Salem County (65,874 people).
- Salem County's population is 3.8 times (278%) larger than Piscataquis County's.
Richest county
- Maine: Cumberland County ($90,142 per capita income) vs New Jersey: Somerset County ($121,042).
- Somerset County's income is 1.3 times (34%) richer than Cumberland County's.
Poorest county
- Maine: Franklin County ($52,725 per capita income) vs New Jersey: Cumberland County ($50,843).
- Franklin County and Cumberland County have about the same income.
Maine vs New Jersey Taxes
State income tax
- Maine has a top income tax rate of 7.15%, while New Jersey has a top income tax rate of 10.75%.
- New Jersey's top rate is 3.6 percentage points higher.
Property tax
- Maine: 0.91% effective rate vs New Jersey: 1.89% of home value per year.
- New Jersey's rate is 0.98 percentage points higher.
Sales tax
- Maine: 5.5% combined state and average local rate vs New Jersey: 6.6%.
- New Jersey's combined rate is 1.1 percentage points higher.
Official Websites
Maine official website · New Jersey official website
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More Size Comparisons
All Maine size comparisons · All New Jersey 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.