The map above shows Washington and Northern Ireland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Washington vs Northern Ireland Geography
Land area: Washington has a land area of 66,455 square miles (172,119 km²), while Northern Ireland has 5,236 square miles (13,562 km²). Washington's land area is 12.7 times larger than Northern Ireland's.
Total area: Washington: 71,301 square miles (184,668 km²) vs Northern Ireland: 5,456 square miles (14,130 km²), including inland and coastal water. Washington's total area is 13.1 times larger than Northern Ireland's.
Length: Washington is 238 miles (383 km) long from north to south; Northern Ireland is 83 miles (134 km). Washington's north-south length is 2.9 times (187%) longer than Northern Ireland's.
Width: Washington spans 399 miles (641 km) east to west; Northern Ireland spans 107 miles (173 km). Washington's east-west width is 3.7 times (273%) wider than Northern Ireland's.
Highest point: Washington's highest point is Mount Rainier at 14,409 feet (4,392 m); Northern Ireland's is Slieve Donard at 2,789 feet (850 m). Mount Rainier is 11,620 feet higher than Slieve Donard.
Lowest point: Washington's lowest point is Pacific Ocean at 0 feet; Northern Ireland's is Irish Sea at 0 feet. Both lowest points are at or near sea level.
Washington vs Northern Ireland Population and History
Population: Washington has a population of 7,958,180 (2024), while Northern Ireland has 1,905,000 (2022). Washington's population is 4.2 times (318%) larger than Northern Ireland's.
Population density: Washington: 119.8 people per square mile vs Northern Ireland: 363.8. Northern Ireland's population density is 3.0 times (204%) higher than Washington's.
Biggest city: Washington's biggest city is Seattle with 780,995 people; Northern Ireland's is Belfast with 348,005. Seattle's population is 2.2 times (124%) larger than Belfast's.
History: Washington: Admitted to the Union on November 11, 1889, as the 42nd state. Northern Ireland: A country within the United Kingdom; created by the partition of Ireland on May 3, 1921. In its current form, Washington is the older of the two by 32 years.
Washington vs Northern Ireland Economy
GDP: Washington's GDP is $856.0 billion (2024) vs Northern Ireland's $58.8 billion. Washington's economic output is 14.6 times larger than Northern Ireland's.
GDP per capita: Washington: $107,564 per person vs Northern Ireland: $30,686. Washington's GDP per capita is 3.5 times (251%) higher than Northern Ireland's.
Official Websites
Washington official website · Northern Ireland official website
More Size Comparisons
All Washington 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.