The map above shows Maryland and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Maryland vs Washington Geography
Land area
- Maryland has a land area of 9,711 square miles (25,151 km²), while Washington has 66,455 square miles (172,119 km²).
- Washington's land area is 6.8 times (584%) larger than Maryland's.
Total area
- Maryland: 12,406 square miles (32,131 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water.
- Washington's total area is 5.7 times (475%) larger than Maryland's.
Length
- Maryland is 231 miles (371 km) long from north to south; Washington is 238 miles (383 km).
- Maryland and Washington have about the same north-south length.
Width
- Maryland spans 243 miles (391 km) east to west; Washington spans 399 miles (641 km).
- Washington's east-west width is 1.6 times (64%) wider than Maryland's.
Highest point
- Maryland's highest point is Hoye-Crest at 3,362 feet (1,025 m); Washington's is Mount Rainier at 14,409 feet (4,392 m).
- Mount Rainier is 11,047 feet higher than Hoye-Crest.
Lowest point
- Maryland'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.
Maryland vs Washington Population and History
Population
- Maryland has a population of 6,263,220 (2024), while Washington has 7,958,180 (2024).
- Washington's population is 1.3 times (27%) larger than Maryland's.
Population density
- Maryland: 645.0 people per square mile vs Washington: 119.8.
- Maryland's population density is 5.4 times (438%) higher than Washington's.
Biggest city
- Maryland's biggest city is Baltimore with 568,271 people; Washington's is Seattle with 780,995.
- Seattle's population is 1.4 times (37%) larger than Baltimore's.
Largest metro area
- Maryland's largest metropolitan area is Washington-Arlington-Alexandria, DC-VA-MD-WV metro area (6,436,489 people) vs Washington's Seattle-Tacoma-Bellevue, WA metro area (4,145,494).
- Washington-Arlington-Alexandria, DC-VA-MD-WV metro area's population is 1.6 times (55%) larger than Seattle-Tacoma-Bellevue, WA metro area's.
History
- Maryland: Admitted to the Union on April 28, 1788, as the 7th state.
- Washington: Admitted to the Union on November 11, 1889, as the 42nd state.
- In its current form, Maryland is the older of the two by 101 years.
Maryland vs Washington Economy
GDP
- Maryland's GDP is $546.0 billion (2024) vs Washington's $856.0 billion.
- Washington's economic output is 1.6 times (57%) larger than Maryland's.
GDP per capita
- Maryland: $87,180 per person vs Washington: $107,564.
- Washington's GDP per capita is 1.2 times (23%) higher than Maryland's.
Average income
- Maryland: $79,259 vs Washington: $85,187 average income per person (per capita personal income).
- Washington's average income is 1.1 times (7%) higher than Maryland's.
Maryland vs Washington Counties
Number of counties
- Maryland has 24 counties, while Washington has 39.
- Washington's county count is 1.6 times (63%) higher than Maryland's.
Biggest county by area
- Maryland's largest county is Frederick County at 661 square miles; Washington's is Okanogan County at 5,266 square miles.
- Okanogan County's land area is 8.0 times (697%) larger than Frederick County's.
Smallest county by area
- Maryland: Baltimore city (81 sq mi) vs Washington: San Juan County (174 sq mi).
- San Juan County's land area is 2.1 times (115%) larger than Baltimore city's.
Most populous county
- Maryland: Montgomery County (1,082,273 people) vs Washington: King County (2,340,211 people).
- King County's population is 2.2 times (116%) larger than Montgomery County's.
Least populous county
- Maryland: Kent County (19,557 people) vs Washington: Garfield County (2,404 people).
- Kent County's population is 8.1 times (714%) larger than Garfield County's.
Richest county
- Maryland: Montgomery County ($104,882 per capita income) vs Washington: King County ($128,684).
- King County's income is 1.2 times (23%) richer than Montgomery County's.
Poorest county
- Maryland: Somerset County ($41,421 per capita income) vs Washington: Ferry County ($50,456).
- Ferry County's income is 1.2 times (22%) richer than Somerset County's.
Maryland vs Washington Taxes
State income tax
- Maryland has a top income tax rate of 6.5%, while Washington has a 9% tax on capital gains only.
Property tax
- Maryland: 0.95% effective rate vs Washington: 0.79% of home value per year.
- Maryland's rate is 0.16 percentage points higher.
Sales tax
- Maryland: 6% combined state and average local rate vs Washington: 9.57%.
- Washington's combined rate is 3.57 percentage points higher.
Official Websites
Maryland official website · Washington official website
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More Size Comparisons
All Maryland 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.