The map above shows Montana and New Brunswick side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Montana vs New Brunswick Geography
Land area: Montana has a land area of 145,550 square miles (376,973 km²), while New Brunswick has 27,587 square miles (71,450 km²). Montana's land area is 5.3 times (428%) larger than New Brunswick's.
Total area: Montana: 147,043 square miles (380,840 km²) vs New Brunswick: 28,150 square miles (72,908 km²), including inland and coastal water. Montana's total area is 5.2 times (422%) larger than New Brunswick's.
Length: Montana is 319 miles (514 km) long from north to south; New Brunswick is 241 miles (388 km). Montana's north-south length is 1.3 times (32%) longer than New Brunswick's.
Width: Montana spans 607 miles (976 km) east to west; New Brunswick spans 264 miles (424 km). Montana's east-west width is 2.3 times (130%) wider than New Brunswick's.
Highest point: Montana's highest point is Granite Peak at 12,767 feet (3,891 m); New Brunswick's is Mount Carleton at 2,680 feet (817 m). Granite Peak is 10,087 feet higher than Mount Carleton.
Lowest point: Montana's lowest point is Kootenai River at 1,805 feet; New Brunswick's is Atlantic Ocean at 0 feet. New Brunswick's lowest point is 1,805 feet lower.
Montana vs New Brunswick Population and History
Population: Montana has a population of 1,137,233 (2024), while New Brunswick has 867,383 (2026). Montana's population is 1.3 times (31%) larger than New Brunswick's.
Population density: Montana: 7.8 people per square mile vs New Brunswick: 31.4. New Brunswick's population density is 4.0 times (303%) higher than Montana's.
Biggest city: Montana's biggest city is Billings with 121,483 people; New Brunswick's is Moncton with 79,470. Billings' population is 1.5 times (53%) larger than Moncton's.
Largest metro area: Montana's largest metropolitan area is Billings, MT metro area (192,531 people) vs New Brunswick's Moncton CMA (157,717). Billings, MT metro area's population is 1.2 times (22%) larger than Moncton CMA's.
History: Montana: Admitted to the Union on November 8, 1889, as the 41st state. New Brunswick: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, New Brunswick is the older of the two by 22 years.
Montana vs New Brunswick Economy
GDP: Montana's GDP is $78.4 billion (2024) vs New Brunswick's $35.3 billion. Montana's economic output is 2.2 times (122%) larger than New Brunswick's.
GDP per capita: Montana: $68,975 per person vs New Brunswick: $41,088. Montana's GDP per capita is 1.7 times (68%) higher than New Brunswick's.
Official Websites
Montana official website · New Brunswick official website
More Size Comparisons
All Montana 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.