The map above shows Maine and New Brunswick side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Maine vs New Brunswick Geography
Land area: Maine has a land area of 30,845 square miles (79,888 km²), while New Brunswick has 27,587 square miles (71,450 km²). Maine's land area is 1.1 times (12%) larger than New Brunswick's.
Total area: Maine: 35,380 square miles (91,634 km²) vs New Brunswick: 28,150 square miles (72,908 km²), including inland and coastal water. Maine's total area is 1.3 times (26%) larger than New Brunswick's.
Length: Maine is 311 miles (501 km) long from north to south; New Brunswick is 241 miles (388 km). Maine's north-south length is 1.3 times (29%) longer than New Brunswick's.
Width: Maine spans 203 miles (327 km) east to west; New Brunswick spans 264 miles (424 km). New Brunswick's east-west width is 1.3 times (30%) wider than Maine's.
Highest point: Maine's highest point is Mount Katahdin at 5,253 feet (1,601 m); New Brunswick's is Mount Carleton at 2,680 feet (817 m). Mount Katahdin is 2,573 feet higher than Mount Carleton.
Lowest point: Maine's lowest point is Atlantic Ocean at 0 feet; New Brunswick's is Atlantic Ocean at 0 feet. Both lowest points are at or near sea level.
Maine vs New Brunswick Population and History
Population: Maine has a population of 1,405,012 (2024), while New Brunswick has 867,383 (2026). Maine's population is 1.6 times (62%) larger than New Brunswick's.
Population density: Maine: 45.6 people per square mile vs New Brunswick: 31.4. Maine's population density is 1.5 times (45%) higher than New Brunswick's.
Biggest city: Maine's biggest city is Portland with 69,568 people; New Brunswick's is Moncton with 79,470. Moncton's population is 1.1 times (14%) larger than Portland's.
Largest metro area: Maine's largest metropolitan area is Portland-South Portland, ME metro area (571,534 people) vs New Brunswick's Moncton CMA (157,717). Portland-South Portland, ME metro area's population is 3.6 times (262%) larger than Moncton CMA's.
History: Maine: Admitted to the Union on March 15, 1820, as the 23rd state. New Brunswick: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, Maine is the older of the two by 47 years.
Maine vs New Brunswick Economy
GDP: Maine's GDP is $99.2 billion (2024) vs New Brunswick's $35.3 billion. Maine's economic output is 2.8 times (181%) larger than New Brunswick's.
GDP per capita: Maine: $70,586 per person vs New Brunswick: $41,088. Maine's GDP per capita is 1.7 times (72%) higher than New Brunswick's.
Official Websites
Maine official website · New Brunswick official website
More Size Comparisons
All Maine size comparisons · All New Brunswick 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.