The map above shows Montana and Ireland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Montana vs Ireland Geography
Land area
- Montana has a land area of 145,550 square miles (376,973 km²), while Ireland has 26,596 square miles (68,883 km²).
- Montana's land area is 5.5 times (447%) larger than Ireland's.
Total area
- Montana: 147,043 square miles (380,840 km²) vs Ireland: 27,133 square miles (70,273 km²), including inland and coastal water.
- Montana's total area is 5.4 times (442%) larger than Ireland's.
Length
- Montana is 319 miles (514 km) long from north to south; Ireland is 287 miles (462 km).
- Montana's north-south length is 1.1 times (11%) longer than Ireland's.
Width
- Montana spans 607 miles (976 km) east to west; Ireland spans 191 miles (308 km).
- Montana's east-west width is 3.2 times (218%) wider than Ireland's.
Highest point
- Montana's highest point is Granite Peak at 12,767 feet (3,891 m); Ireland's is Carrauntoohil at 3,406 feet (1,038 m).
- Granite Peak is 9,361 feet higher than Carrauntoohil.
Lowest point
- Montana's lowest point is Kootenai River at 1,805 feet; Ireland's is Atlantic Ocean at 0 feet.
- Ireland's lowest point is 1,805 feet lower.
Montana vs Ireland Population and History
Population
- Montana has a population of 1,137,233 (2024), while Ireland has 5,525,600 (2026).
- Ireland's population is 4.9 times (386%) larger than Montana's.
Population density
- Montana: 7.8 people per square mile vs Ireland: 207.8.
- Ireland's population density is 26.6 times higher than Montana's.
Biggest city
- Montana's biggest city is Billings with 121,483 people; Ireland's is Dublin with 592,713.
- Dublin's population is 4.9 times (388%) larger than Billings'.
Largest metro area
- Montana's largest metropolitan area is Billings, MT metro area (192,531 people) vs Ireland's Greater Dublin Area (2,082,605).
- Greater Dublin Area's population is 10.8 times larger than Billings, MT metro area's.
History
- Montana: Admitted to the Union on November 8, 1889, as the 41st state.
- Ireland: Independent since December 6, 1922, as the Irish Free State; a republic since 1949.
- In its current form, Montana is the older of the two by 33 years.
Montana vs Ireland Economy
GDP
- Montana's GDP is $78.4 billion (2024) vs Ireland's $721.7 billion.
- Ireland's economic output is 9.2 times (821%) larger than Montana's.
GDP per capita
- Montana: $68,975 per person vs Ireland: $131,593.
- Ireland's GDP per capita is 1.9 times (91%) higher than Montana's.
Average income
- Montana: $69,240 vs Ireland: $87,360 average income per person (per capita personal income).
- Ireland's average income is 1.3 times (26%) higher than Montana's.
Official Websites
Montana official website · Ireland official website
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More Size Comparisons
All Montana size comparisons · All Ireland 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.