The map above shows Oklahoma and Northern Ireland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Oklahoma vs Northern Ireland Geography
Land area
- Oklahoma has a land area of 68,597 square miles (177,665 km²), while Northern Ireland has 5,236 square miles (13,562 km²).
- Oklahoma's land area is 13.1 times larger than Northern Ireland's.
Total area
- Oklahoma: 69,899 square miles (181,038 km²) vs Northern Ireland: 5,456 square miles (14,130 km²), including inland and coastal water.
- Oklahoma's total area is 12.8 times larger than Northern Ireland's.
Length
- Oklahoma is 533 miles (857 km) long from north to south; Northern Ireland is 83 miles (134 km).
- Oklahoma's north-south length is 6.4 times (542%) longer than Northern Ireland's.
Width
- Oklahoma spans 490 miles (789 km) east to west; Northern Ireland spans 107 miles (173 km).
- Oklahoma's east-west width is 4.6 times (358%) wider than Northern Ireland's.
Highest point
- Oklahoma's highest point is Black Mesa at 4,980 feet (1,518 m); Northern Ireland's is Slieve Donard at 2,789 feet (850 m).
- Black Mesa is 2,191 feet higher than Slieve Donard.
Lowest point
- Oklahoma's lowest point is Little River at 289 feet; Northern Ireland's is Irish Sea at 0 feet.
- Northern Ireland's lowest point is 289 feet lower.
Oklahoma vs Northern Ireland Population and History
Population
- Oklahoma has a population of 4,095,393 (2024), while Northern Ireland has 1,905,000 (2022).
- Oklahoma's population is 2.1 times (115%) larger than Northern Ireland's.
Population density
- Oklahoma: 59.7 people per square mile vs Northern Ireland: 363.8.
- Northern Ireland's population density is 6.1 times (509%) higher than Oklahoma's.
Biggest city
- Oklahoma's biggest city is Oklahoma City with 712,919 people; Northern Ireland's is Belfast with 348,005.
- Oklahoma City's population is 2.0 times (105%) larger than Belfast's.
History
- Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state.
- Northern Ireland: A country within the United Kingdom; created by the partition of Ireland on May 3, 1921.
- In its current form, Oklahoma is the older of the two by 14 years.
Oklahoma vs Northern Ireland Economy
GDP
- Oklahoma's GDP is $263.7 billion (2024) vs Northern Ireland's $58.8 billion.
- Oklahoma's economic output is 4.5 times (348%) larger than Northern Ireland's.
GDP per capita
- Oklahoma: $64,388 per person vs Northern Ireland: $30,686.
- Oklahoma's GDP per capita is 2.1 times (110%) higher than Northern Ireland's.
Official Websites
Oklahoma official website · Northern Ireland official website
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More Size Comparisons
All Oklahoma size comparisons · All Northern 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.