The map above shows New Jersey and Pennsylvania side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New Jersey vs Pennsylvania Geography
Land area
- New Jersey has a land area of 7,355 square miles (19,049 km²), while Pennsylvania has 44,742 square miles (115,882 km²).
- Pennsylvania's land area is 6.1 times (508%) larger than New Jersey's.
Total area
- New Jersey: 8,719 square miles (22,583 km²) vs Pennsylvania: 46,054 square miles (119,279 km²), including inland and coastal water.
- Pennsylvania's total area is 5.3 times (428%) larger than New Jersey's.
Length
- New Jersey is 169 miles (271 km) long from north to south; Pennsylvania is 284 miles (458 km).
- Pennsylvania's north-south length is 1.7 times (68%) longer than New Jersey's.
Width
- New Jersey spans 129 miles (207 km) east to west; Pennsylvania spans 307 miles (495 km).
- Pennsylvania's east-west width is 2.4 times (138%) wider than New Jersey's.
Highest point
- New Jersey's highest point is High Point at 1,798 feet (548 m); Pennsylvania's is Mount Davis at 3,210 feet (978 m).
- Mount Davis is 1,412 feet higher than High Point.
Lowest point
- New Jersey's lowest point is Atlantic Ocean at 0 feet; Pennsylvania's is Delaware River at 0 feet.
- Both lowest points are at or near sea level.
New Jersey vs Pennsylvania Population and History
Population
- New Jersey has a population of 9,500,851 (2024), while Pennsylvania has 13,078,751 (2024).
- Pennsylvania's population is 1.4 times (38%) larger than New Jersey's.
Population density
- New Jersey: 1,291.8 people per square mile vs Pennsylvania: 292.3.
- New Jersey's population density is 4.4 times (342%) higher than Pennsylvania's.
Biggest city
- New Jersey's biggest city is Newark with 317,303 people; Pennsylvania's is Philadelphia with 1,573,916.
- Philadelphia's population is 5.0 times (396%) larger than Newark's.
Largest metro area
- New Jersey's largest metropolitan area is New York-Newark-Jersey City, NY-NJ metro area (19,940,274 people) vs Pennsylvania's Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422).
- New York-Newark-Jersey City, NY-NJ metro area's population is 3.1 times (215%) larger than Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's.
History
- New Jersey: Admitted to the Union on December 18, 1787, as the 3rd state.
- Pennsylvania: Admitted to the Union on December 12, 1787, as the 2nd state.
New Jersey vs Pennsylvania Economy
GDP
- New Jersey's GDP is $846.0 billion (2024) vs Pennsylvania's $1,007.9 billion.
- Pennsylvania's economic output is 1.2 times (19%) larger than New Jersey's.
GDP per capita
- New Jersey: $89,045 per person vs Pennsylvania: $77,062.
- New Jersey's GDP per capita is 1.2 times (16%) higher than Pennsylvania's.
Average income
- New Jersey: $84,893 vs Pennsylvania: $70,678 average income per person (per capita personal income).
- New Jersey's average income is 1.2 times (20%) higher than Pennsylvania's.
New Jersey vs Pennsylvania Counties
Number of counties
- New Jersey has 21 counties, while Pennsylvania has 67.
- Pennsylvania's county count is 3.2 times (219%) higher than New Jersey's.
Biggest county by area
- New Jersey's largest county is Burlington County at 799 square miles; Pennsylvania's is Lycoming County at 1,229 square miles.
- Lycoming County's land area is 1.5 times (54%) larger than Burlington County's.
Smallest county by area
- New Jersey: Hudson County (46 sq mi) vs Pennsylvania: Montour County (130 sq mi).
- Montour County's land area is 2.8 times (182%) larger than Hudson County's.
Most populous county
- New Jersey: Bergen County (978,641 people) vs Pennsylvania: Philadelphia County (1,573,916 people).
- Philadelphia County's population is 1.6 times (61%) larger than Bergen County's.
Least populous county
- New Jersey: Salem County (65,874 people) vs Pennsylvania: Cameron County (4,348 people).
- Salem County's population is 15.2 times larger than Cameron County's.
Richest county
- New Jersey: Somerset County ($121,042 per capita income) vs Pennsylvania: Chester County ($110,883).
- Somerset County's income is 1.1 times (9%) richer than Chester County's.
Poorest county
- New Jersey: Cumberland County ($50,843 per capita income) vs Pennsylvania: Forest County ($30,234).
- Cumberland County's income is 1.7 times (68%) richer than Forest County's.
New Jersey vs Pennsylvania Taxes
State income tax
- New Jersey has a top income tax rate of 10.75%, while Pennsylvania has a top income tax rate of 3.07%.
- New Jersey's top rate is 7.68 percentage points higher.
Property tax
- New Jersey: 1.89% effective rate vs Pennsylvania: 1.16% of home value per year.
- New Jersey's rate is 0.73 percentage points higher.
Sales tax
- New Jersey: 6.6% combined state and average local rate vs Pennsylvania: 6.34%.
- New Jersey's combined rate is 0.26 percentage points higher.
Official Websites
New Jersey official website · Pennsylvania official website
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More Size Comparisons
All New Jersey 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.