The map above shows Mississippi and Pennsylvania side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Mississippi vs Pennsylvania Geography
Land area: Mississippi has a land area of 46,925 square miles (121,534 km²), while Pennsylvania has 44,742 square miles (115,882 km²). Mississippi's land area is 1.0 times (5%) larger than Pennsylvania's.
Total area: Mississippi: 48,436 square miles (125,448 km²) vs Pennsylvania: 46,054 square miles (119,279 km²), including inland and coastal water. Mississippi's total area is 1.1 times (5%) larger than Pennsylvania's.
Length: Mississippi is 337 miles (542 km) long from north to south; Pennsylvania is 284 miles (458 km). Mississippi's north-south length is 1.2 times (19%) longer than Pennsylvania's.
Width: Mississippi spans 340 miles (547 km) east to west; Pennsylvania spans 307 miles (495 km). Mississippi's east-west width is 1.1 times (11%) wider than Pennsylvania's.
Highest point: Mississippi's highest point is Woodall Mountain at 805 feet (245 m); Pennsylvania's is Mount Davis at 3,210 feet (978 m). Mount Davis is 2,405 feet higher than Woodall Mountain.
Lowest point: Mississippi's lowest point is Gulf of Mexico at 0 feet; Pennsylvania's is Delaware River at 0 feet. Both lowest points are at or near sea level.
Mississippi vs Pennsylvania Population and History
Population: Mississippi has a population of 2,943,045 (2024), while Pennsylvania has 13,078,751 (2024). Pennsylvania's population is 4.4 times (344%) larger than Mississippi's.
Population density: Mississippi: 62.7 people per square mile vs Pennsylvania: 292.3. Pennsylvania's population density is 4.7 times (366%) higher than Mississippi's.
Biggest city: Mississippi's biggest city is Jackson with 141,449 people; Pennsylvania's is Philadelphia with 1,573,916. Philadelphia's population is 11.1 times larger than Jackson's.
Largest metro area: Mississippi's largest metropolitan area is Memphis, TN-MS-AR metro area (1,339,345 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 4.7 times (373%) larger than Memphis, TN-MS-AR metro area's.
History: Mississippi: Admitted to the Union on December 10, 1817, as the 20th 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 30 years.
Mississippi vs Pennsylvania Economy
GDP: Mississippi's GDP is $158.2 billion (2024) vs Pennsylvania's $1,007.9 billion. Pennsylvania's economic output is 6.4 times (537%) larger than Mississippi's.
GDP per capita: Mississippi: $53,751 per person vs Pennsylvania: $77,062. Pennsylvania's GDP per capita is 1.4 times (43%) higher than Mississippi's.
Average income: Mississippi: $52,074 vs Pennsylvania: $70,678 average income per person (per capita personal income). Pennsylvania's average income is 1.4 times (36%) higher than Mississippi's.
Mississippi vs Pennsylvania Counties
Number of counties: Mississippi has 82 counties, while Pennsylvania has 67. Mississippi's county count is 1.2 times (22%) higher than Pennsylvania's.
Biggest county by area: Mississippi's largest county is Yazoo County at 922 square miles; Pennsylvania's is Lycoming County at 1,229 square miles. Lycoming County's land area is 1.3 times (33%) larger than Yazoo County's.
Smallest county by area: Mississippi: Alcorn County (400 sq mi) vs Pennsylvania: Montour County (130 sq mi). Alcorn County's land area is 3.1 times (207%) larger than Montour County's.
Most populous county: Mississippi: Harrison County (213,730 people) vs Pennsylvania: Philadelphia County (1,573,916 people). Philadelphia County's population is 7.4 times (636%) larger than Harrison County's.
Least populous county: Mississippi: Issaquena County (1,295 people) vs Pennsylvania: Cameron County (4,348 people). Cameron County's population is 3.4 times (236%) larger than Issaquena County's.
Richest county: Mississippi: Madison County ($90,668 per capita income) vs Pennsylvania: Chester County ($110,883). Chester County's income is 1.2 times (22%) richer than Madison County's.
Poorest county: Mississippi: Issaquena County ($27,264 per capita income) vs Pennsylvania: Forest County ($30,234). Forest County's income is 1.1 times (11%) richer than Issaquena County's.
Mississippi vs Pennsylvania Taxes
State income tax: Mississippi has a top income tax rate of 4%, while Pennsylvania has a top income tax rate of 3.07%. Mississippi's top rate is 0.93 percentage points higher.
Property tax: Mississippi: 0.65% effective rate vs Pennsylvania: 1.16% of home value per year. Pennsylvania's rate is 0.51 percentage points higher.
Sales tax: Mississippi: 7.06% combined state and average local rate vs Pennsylvania: 6.34%. Mississippi's combined rate is 0.72 percentage points higher.
Official Websites
Mississippi official website · Pennsylvania official website
More Size Comparisons
All Mississippi 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.