The map above shows Pennsylvania and Washington side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Pennsylvania vs Washington Geography
Land area
- Pennsylvania has a land area of 44,742 square miles (115,882 km²), while Washington has 66,455 square miles (172,119 km²).
- Washington's land area is 1.5 times (49%) larger than Pennsylvania's.
Total area
- Pennsylvania: 46,054 square miles (119,279 km²) vs Washington: 71,301 square miles (184,668 km²), including inland and coastal water.
- Washington's total area is 1.5 times (55%) larger than Pennsylvania's.
Length
- Pennsylvania is 284 miles (458 km) long from north to south; Washington is 238 miles (383 km).
- Pennsylvania's north-south length is 1.2 times (19%) longer than Washington's.
Width
- Pennsylvania spans 307 miles (495 km) east to west; Washington spans 399 miles (641 km).
- Washington's east-west width is 1.3 times (30%) wider than Pennsylvania's.
Highest point
- Pennsylvania's highest point is Mount Davis at 3,210 feet (978 m); Washington's is Mount Rainier at 14,409 feet (4,392 m).
- Mount Rainier is 11,199 feet higher than Mount Davis.
Lowest point
- Pennsylvania's lowest point is Delaware River at 0 feet; Washington's is Pacific Ocean at 0 feet.
- Both lowest points are at or near sea level.
Pennsylvania vs Washington Population and History
Population
- Pennsylvania has a population of 13,078,751 (2024), while Washington has 7,958,180 (2024).
- Pennsylvania's population is 1.6 times (64%) larger than Washington's.
Population density
- Pennsylvania: 292.3 people per square mile vs Washington: 119.8.
- Pennsylvania's population density is 2.4 times (144%) higher than Washington's.
Biggest city
- Pennsylvania's biggest city is Philadelphia with 1,573,916 people; Washington's is Seattle with 780,995.
- Philadelphia's population is 2.0 times (102%) larger than Seattle's.
Largest metro area
- Pennsylvania'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
- Pennsylvania: Admitted to the Union on December 12, 1787, as the 2nd state.
- Washington: Admitted to the Union on November 11, 1889, as the 42nd state.
- In its current form, Pennsylvania is the older of the two by 102 years.
Pennsylvania vs Washington Economy
GDP
- Pennsylvania's GDP is $1,007.9 billion (2024) vs Washington's $856.0 billion.
- Pennsylvania's economic output is 1.2 times (18%) larger than Washington's.
GDP per capita
- Pennsylvania: $77,062 per person vs Washington: $107,564.
- Washington's GDP per capita is 1.4 times (40%) higher than Pennsylvania's.
Average income
- Pennsylvania: $70,678 vs Washington: $85,187 average income per person (per capita personal income).
- Washington's average income is 1.2 times (21%) higher than Pennsylvania's.
Pennsylvania vs Washington Counties
Number of counties
- Pennsylvania has 67 counties, while Washington has 39.
- Pennsylvania's county count is 1.7 times (72%) higher than Washington's.
Biggest county by area
- Pennsylvania's largest county is Lycoming County at 1,229 square miles; Washington's is Okanogan County at 5,266 square miles.
- Okanogan County's land area is 4.3 times (329%) larger than Lycoming County's.
Smallest county by area
- Pennsylvania: Montour County (130 sq mi) vs Washington: San Juan County (174 sq mi).
- San Juan County's land area is 1.3 times (33%) larger than Montour County's.
Most populous county
- Pennsylvania: Philadelphia County (1,573,916 people) vs Washington: King County (2,340,211 people).
- King County's population is 1.5 times (49%) larger than Philadelphia County's.
Least populous county
- Pennsylvania: Cameron County (4,348 people) vs Washington: Garfield County (2,404 people).
- Cameron County's population is 1.8 times (81%) larger than Garfield County's.
Richest county
- Pennsylvania: Chester County ($110,883 per capita income) vs Washington: King County ($128,684).
- King County's income is 1.2 times (16%) richer than Chester County's.
Poorest county
- Pennsylvania: Forest County ($30,234 per capita income) vs Washington: Ferry County ($50,456).
- Ferry County's income is 1.7 times (67%) richer than Forest County's.
Pennsylvania vs Washington Taxes
State income tax
- Pennsylvania has a top income tax rate of 3.07%, while Washington has a 9% tax on capital gains only.
Property tax
- Pennsylvania: 1.16% effective rate vs Washington: 0.79% of home value per year.
- Pennsylvania's rate is 0.37 percentage points higher.
Sales tax
- Pennsylvania: 6.34% combined state and average local rate vs Washington: 9.57%.
- Washington's combined rate is 3.23 percentage points higher.
Official Websites
Pennsylvania official website · Washington official website
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More Size Comparisons
All Pennsylvania 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.