The map above shows New Mexico and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New Mexico vs Washington Geography
Land area: New Mexico has a land area of 121,313 square miles (314,198 km²), while Washington has 66,455 square miles (172,119 km²). New Mexico's land area is 1.8 times (83%) larger than Washington's.
Total area: New Mexico: 121,593 square miles (314,925 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water. New Mexico's total area is 1.7 times (71%) larger than Washington's.
Length: New Mexico is 395 miles (635 km) long from north to south; Washington is 238 miles (383 km). New Mexico's north-south length is 1.7 times (66%) longer than Washington's.
Width: New Mexico spans 498 miles (801 km) east to west; Washington spans 399 miles (641 km). New Mexico's east-west width is 1.2 times (25%) wider than Washington's.
Highest point: New Mexico's highest point is Wheeler Peak at 13,150 feet (4,008 m); Washington's is Mount Rainier at 14,409 feet (4,392 m). Mount Rainier is 1,259 feet higher than Wheeler Peak.
Lowest point: New Mexico's lowest point is Red Bluff Reservoir at 2,842 feet; Washington's is Pacific Ocean at 0 feet. Washington's lowest point is 2,842 feet lower.
New Mexico vs Washington Population and History
Population: New Mexico has a population of 2,130,256 (2024), while Washington has 7,958,180 (2024). Washington's population is 3.7 times (274%) larger than New Mexico's.
Population density: New Mexico: 17.6 people per square mile vs Washington: 119.8. Washington's population density is 6.8 times (581%) higher than New Mexico's.
Biggest city: New Mexico's biggest city is Albuquerque with 560,326 people; Washington's is Seattle with 780,995. Seattle's population is 1.4 times (39%) larger than Albuquerque's.
Largest metro area: New Mexico's largest metropolitan area is Albuquerque, NM metro area (926,303 people) vs Washington's Seattle-Tacoma-Bellevue, WA metro area (4,145,494). Seattle-Tacoma-Bellevue, WA metro area's population is 4.5 times (348%) larger than Albuquerque, NM metro area's.
History: New Mexico: Admitted to the Union on January 6, 1912, as the 47th state. Washington: Admitted to the Union on November 11, 1889, as the 42nd state. In its current form, Washington is the older of the two by 23 years.
New Mexico vs Washington Economy
GDP: New Mexico's GDP is $147.1 billion (2024) vs Washington's $856.0 billion. Washington's economic output is 5.8 times (482%) larger than New Mexico's.
GDP per capita: New Mexico: $69,046 per person vs Washington: $107,564. Washington's GDP per capita is 1.6 times (56%) higher than New Mexico's.
Average income: New Mexico: $58,249 vs Washington: $85,187 average income per person (per capita personal income). Washington's average income is 1.5 times (46%) higher than New Mexico's.
New Mexico vs Washington Counties
Number of counties: New Mexico has 33 counties, while Washington has 39. Washington's county count is 1.2 times (18%) higher than New Mexico's.
Biggest county by area: New Mexico's largest county is Catron County at 6,924 square miles; Washington's is Okanogan County at 5,266 square miles. Catron County's land area is 1.3 times (31%) larger than Okanogan County's.
Smallest county by area: New Mexico: Los Alamos County (109 sq mi) vs Washington: San Juan County (174 sq mi). San Juan County's land area is 1.6 times (59%) larger than Los Alamos County's.
Most populous county: New Mexico: Bernalillo County (671,747 people) vs Washington: King County (2,340,211 people). King County's population is 3.5 times (248%) larger than Bernalillo County's.
Least populous county: New Mexico: Harding County (635 people) vs Washington: Garfield County (2,404 people). Garfield County's population is 3.8 times (279%) larger than Harding County's.
Richest county: New Mexico: Los Alamos County ($98,378 per capita income) vs Washington: King County ($128,684). King County's income is 1.3 times (31%) richer than Los Alamos County's.
Poorest county: New Mexico: Cibola County ($36,397 per capita income) vs Washington: Ferry County ($50,456). Ferry County's income is 1.4 times (39%) richer than Cibola County's.
New Mexico vs Washington Taxes
State income tax: New Mexico has a top income tax rate of 5.9%, while Washington has a 9% tax on capital gains only.
Property tax: New Mexico: 0.63% effective rate vs Washington: 0.79% of home value per year. Washington's rate is 0.16 percentage points higher.
Sales tax: New Mexico: 7.68% combined state and average local rate vs Washington: 9.57%. Washington's combined rate is 1.89 percentage points higher.
Official Websites
New Mexico official website · Washington official website
More Size Comparisons
All New Mexico 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.