The map above shows Delaware and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Delaware vs Washington Geography
Land area: Delaware has a land area of 1,949 square miles (5,047 km²), while Washington has 66,455 square miles (172,119 km²). Washington's land area is 34.1 times larger than Delaware's.
Total area: Delaware: 2,489 square miles (6,446 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water. Washington's total area is 28.6 times larger than Delaware's.
Length: Delaware is 98 miles (158 km) long from north to south; Washington is 238 miles (383 km). Washington's north-south length is 2.4 times (143%) longer than Delaware's.
Width: Delaware spans 96 miles (155 km) east to west; Washington spans 399 miles (641 km). Washington's east-west width is 4.2 times (316%) wider than Delaware's.
Highest point: Delaware's highest point is Ebright Azimuth at 450 feet (137 m); Washington's is Mount Rainier at 14,409 feet (4,392 m). Mount Rainier is 13,959 feet higher than Ebright Azimuth.
Lowest point: Delaware's lowest point is Atlantic Ocean at 0 feet; Washington's is Pacific Ocean at 0 feet. Both lowest points are at or near sea level.
Delaware vs Washington Population and History
Population: Delaware has a population of 1,051,917 (2024), while Washington has 7,958,180 (2024). Washington's population is 7.6 times (657%) larger than Delaware's.
Population density: Delaware: 539.9 people per square mile vs Washington: 119.8. Delaware's population density is 4.5 times (351%) higher than Washington's.
Biggest city: Delaware's biggest city is Wilmington with 73,176 people; Washington's is Seattle with 780,995. Seattle's population is 10.7 times larger than Wilmington's.
Largest metro area: Delaware's largest metropolitan area is Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422 people) vs Washington's Seattle-Tacoma-Bellevue, WA metro area (4,145,494). Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's population is 1.5 times (53%) larger than Seattle-Tacoma-Bellevue, WA metro area's.
History: Delaware: Admitted to the Union on December 7, 1787, as the 1st state. Washington: Admitted to the Union on November 11, 1889, as the 42nd state. In its current form, Delaware is the older of the two by 102 years.
Delaware vs Washington Economy
GDP: Delaware's GDP is $111.0 billion (2024) vs Washington's $856.0 billion. Washington's economic output is 7.7 times (671%) larger than Delaware's.
GDP per capita: Delaware: $105,495 per person vs Washington: $107,564. Delaware and Washington have about the same GDP per capita.
Average income: Delaware: $68,061 vs Washington: $85,187 average income per person (per capita personal income). Washington's average income is 1.3 times (25%) higher than Delaware's.
Delaware vs Washington Counties
Number of counties: Delaware has 3 counties, while Washington has 39. Washington's county count is 13.0 times higher than Delaware's.
Biggest county by area: Delaware's largest county is Sussex County at 936 square miles; Washington's is Okanogan County at 5,266 square miles. Okanogan County's land area is 5.6 times (463%) larger than Sussex County's.
Smallest county by area: Delaware: New Castle County (426 sq mi) vs Washington: San Juan County (174 sq mi). New Castle County's land area is 2.5 times (145%) larger than San Juan County's.
Most populous county: Delaware: New Castle County (588,093 people) vs Washington: King County (2,340,211 people). King County's population is 4.0 times (298%) larger than New Castle County's.
Least populous county: Delaware: Kent County (192,690 people) vs Washington: Garfield County (2,404 people). Kent County's population is 80.2 times larger than Garfield County's.
Richest county: Delaware: Sussex County ($73,647 per capita income) vs Washington: King County ($128,684). King County's income is 1.7 times (75%) richer than Sussex County's.
Poorest county: Delaware: Kent County ($55,474 per capita income) vs Washington: Ferry County ($50,456). Kent County's income is 1.1 times (10%) richer than Ferry County's.
Delaware vs Washington Taxes
State income tax: Delaware has a top income tax rate of 6.6%, while Washington has a 9% tax on capital gains only.
Property tax: Delaware: 0.47% effective rate vs Washington: 0.79% of home value per year. Washington's rate is 0.32 percentage points higher.
Sales tax: Delaware: 0% combined state and average local rate vs Washington: 9.57%. Washington's combined rate is 9.57 percentage points higher.
Official Websites
Delaware official website · Washington official website
More Size Comparisons
All Delaware size comparisons · All Washington 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.