The map above shows Missouri and Pennsylvania side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Missouri vs Pennsylvania Geography
Land area: Missouri has a land area of 68,746 square miles (178,052 km²), while Pennsylvania has 44,742 square miles (115,882 km²). Missouri's land area is 1.5 times (54%) larger than Pennsylvania's.
Total area: Missouri: 69,707 square miles (180,540 km²) vs Pennsylvania: 46,054 square miles (119,279 km²), including inland and coastal water. Missouri's total area is 1.5 times (51%) larger than Pennsylvania's.
Length: Missouri is 328 miles (529 km) long from north to south; Pennsylvania is 284 miles (458 km). Missouri's north-south length is 1.2 times (15%) longer than Pennsylvania's.
Width: Missouri spans 437 miles (703 km) east to west; Pennsylvania spans 307 miles (495 km). Missouri's east-west width is 1.4 times (42%) wider than Pennsylvania's.
Highest point: Missouri's highest point is Taum Sauk Mountain at 1,771 feet (540 m); Pennsylvania's is Mount Davis at 3,210 feet (978 m). Mount Davis is 1,439 feet higher than Taum Sauk Mountain.
Lowest point: Missouri's lowest point is St. Francis River at 230 feet; Pennsylvania's is Delaware River at 0 feet. Pennsylvania's lowest point is 230 feet lower.
Missouri vs Pennsylvania Population and History
Population: Missouri has a population of 6,245,466 (2024), while Pennsylvania has 13,078,751 (2024). Pennsylvania's population is 2.1 times (109%) larger than Missouri's.
Population density: Missouri: 90.8 people per square mile vs Pennsylvania: 292.3. Pennsylvania's population density is 3.2 times (222%) higher than Missouri's.
Biggest city: Missouri's biggest city is Kansas City with 516,032 people; Pennsylvania's is Philadelphia with 1,573,916. Philadelphia's population is 3.1 times (205%) larger than Kansas City's.
Largest metro area: Missouri's largest metropolitan area is St. Louis, MO-IL metro area (2,811,927 people) vs Pennsylvania's Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422). Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's population is 2.3 times (125%) larger than St. Louis, MO-IL metro area's.
History: Missouri: Admitted to the Union on August 10, 1821, as the 24th state. Pennsylvania: Admitted to the Union on December 12, 1787, as the 2nd state. In its current form, Pennsylvania is the older of the two by 34 years.
Missouri vs Pennsylvania Economy
GDP: Missouri's GDP is $448.7 billion (2024) vs Pennsylvania's $1,007.9 billion. Pennsylvania's economic output is 2.2 times (125%) larger than Missouri's.
GDP per capita: Missouri: $71,846 per person vs Pennsylvania: $77,062. Pennsylvania's GDP per capita is 1.1 times (7%) higher than Missouri's.
Average income: Missouri: $64,920 vs Pennsylvania: $70,678 average income per person (per capita personal income). Pennsylvania's average income is 1.1 times (9%) higher than Missouri's.
Missouri vs Pennsylvania Counties
Number of counties: Missouri has 115 counties, while Pennsylvania has 67. Missouri's county count is 1.7 times (72%) higher than Pennsylvania's.
Biggest county by area: Missouri's largest county is Texas County at 1,177 square miles; Pennsylvania's is Lycoming County at 1,229 square miles. Texas County and Lycoming County have about the same land area.
Smallest county by area: Missouri: St. Louis city (62 sq mi) vs Pennsylvania: Montour County (130 sq mi). Montour County's land area is 2.1 times (111%) larger than St. Louis city's.
Most populous county: Missouri: St. Louis County (992,929 people) vs Pennsylvania: Philadelphia County (1,573,916 people). Philadelphia County's population is 1.6 times (59%) larger than St. Louis County's.
Least populous county: Missouri: Worth County (1,872 people) vs Pennsylvania: Cameron County (4,348 people). Cameron County's population is 2.3 times (132%) larger than Worth County's.
Richest county: Missouri: St. Louis County ($104,775 per capita income) vs Pennsylvania: Chester County ($110,883). Chester County's income is 1.1 times (6%) richer than St. Louis County's.
Poorest county: Missouri: Douglas County ($40,515 per capita income) vs Pennsylvania: Forest County ($30,234). Douglas County's income is 1.3 times (34%) richer than Forest County's.
Missouri vs Pennsylvania Taxes
State income tax: Missouri has a top income tax rate of 4.7%, while Pennsylvania has a top income tax rate of 3.07%. Missouri's top rate is 1.63 percentage points higher.
Property tax: Missouri: 0.79% effective rate vs Pennsylvania: 1.16% of home value per year. Pennsylvania's rate is 0.37 percentage points higher.
Sales tax: Missouri: 8.44% combined state and average local rate vs Pennsylvania: 6.34%. Missouri's combined rate is 2.1 percentage points higher.
Official Websites
Missouri official website · Pennsylvania official website
More Size Comparisons
All Missouri size comparisons · All Pennsylvania 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.