The map above shows Louisiana and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Louisiana vs Washington Geography
Land area: Louisiana has a land area of 43,213 square miles (111,921 km²), while Washington has 66,455 square miles (172,119 km²). Washington's land area is 1.5 times (54%) larger than Louisiana's.
Total area: Louisiana: 52,375 square miles (135,652 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water. Washington's total area is 1.4 times (36%) larger than Louisiana's.
Length: Louisiana is 301 miles (484 km) long from north to south; Washington is 238 miles (383 km). Louisiana's north-south length is 1.3 times (26%) longer than Washington's.
Width: Louisiana spans 356 miles (574 km) east to west; Washington spans 399 miles (641 km). Washington's east-west width is 1.1 times (12%) wider than Louisiana's.
Highest point: Louisiana's highest point is Driskill Mountain at 533 feet (162 m); Washington's is Mount Rainier at 14,409 feet (4,392 m). Mount Rainier is 13,876 feet higher than Driskill Mountain.
Lowest point: Louisiana's lowest point is New Orleans at -8 feet; Washington's is Pacific Ocean at 0 feet. Louisiana's lowest point is 8 feet lower.
Louisiana vs Washington Population and History
Population: Louisiana has a population of 4,597,740 (2024), while Washington has 7,958,180 (2024). Washington's population is 1.7 times (73%) larger than Louisiana's.
Population density: Louisiana: 106.4 people per square mile vs Washington: 119.8. Washington's population density is 1.1 times (13%) higher than Louisiana's.
Biggest city: Louisiana's biggest city is New Orleans with 362,701 people; Washington's is Seattle with 780,995. Seattle's population is 2.2 times (115%) larger than New Orleans'.
Largest metro area: Louisiana's largest metropolitan area is New Orleans-Metairie, LA metro area (966,230 people) vs Washington's Seattle-Tacoma-Bellevue, WA metro area (4,145,494). Seattle-Tacoma-Bellevue, WA metro area's population is 4.3 times (329%) larger than New Orleans-Metairie, LA metro area's.
History: Louisiana: Admitted to the Union on April 30, 1812, as the 18th state. Washington: Admitted to the Union on November 11, 1889, as the 42nd state. In its current form, Louisiana is the older of the two by 77 years.
Louisiana vs Washington Economy
GDP: Louisiana's GDP is $329.2 billion (2024) vs Washington's $856.0 billion. Washington's economic output is 2.6 times (160%) larger than Louisiana's.
GDP per capita: Louisiana: $71,594 per person vs Washington: $107,564. Washington's GDP per capita is 1.5 times (50%) higher than Louisiana's.
Average income: Louisiana: $61,897 vs Washington: $85,187 average income per person (per capita personal income). Washington's average income is 1.4 times (38%) higher than Louisiana's.
Louisiana vs Washington Counties
Number of counties: Louisiana has 64 counties, while Washington has 39. Louisiana's county count is 1.6 times (64%) higher than Washington's.
Biggest county by area: Louisiana's largest county is Vernon Parish at 1,327 square miles; Washington's is Okanogan County at 5,266 square miles. Okanogan County's land area is 4.0 times (297%) larger than Vernon Parish's.
Smallest county by area: Louisiana: Orleans Parish (170 sq mi) vs Washington: San Juan County (174 sq mi). Orleans Parish and San Juan County have about the same land area.
Most populous county: Louisiana: East Baton Rouge Parish (453,022 people) vs Washington: King County (2,340,211 people). King County's population is 5.2 times (417%) larger than East Baton Rouge Parish's.
Least populous county: Louisiana: Tensas Parish (3,844 people) vs Washington: Garfield County (2,404 people). Tensas Parish's population is 1.6 times (60%) larger than Garfield County's.
Richest county: Louisiana: St. Tammany Parish ($82,398 per capita income) vs Washington: King County ($128,684). King County's income is 1.6 times (56%) richer than St. Tammany Parish's.
Poorest county: Louisiana: East Carroll Parish ($36,751 per capita income) vs Washington: Ferry County ($50,456). Ferry County's income is 1.4 times (37%) richer than East Carroll Parish's.
Louisiana vs Washington Taxes
State income tax: Louisiana has a top income tax rate of 3%, while Washington has a 9% tax on capital gains only.
Property tax: Louisiana: 0.53% effective rate vs Washington: 0.79% of home value per year. Washington's rate is 0.26 percentage points higher.
Sales tax: Louisiana: 10.13% combined state and average local rate vs Washington: 9.57%. Louisiana's combined rate is 0.56 percentage points higher.
Official Websites
Louisiana official website · Washington official website
More Size Comparisons
All Louisiana 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.