The map above shows Mississippi and New Jersey side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Mississippi vs New Jersey Geography
Land area: Mississippi has a land area of 46,925 square miles (121,534 km²), while New Jersey has 7,355 square miles (19,049 km²). Mississippi's land area is 6.4 times (538%) larger than New Jersey's.
Total area: Mississippi: 48,436 square miles (125,448 km²) vs New Jersey: 8,719 square miles (22,583 km²), including inland and coastal water. Mississippi's total area is 5.6 times (455%) larger than New Jersey's.
Length: Mississippi is 337 miles (542 km) long from north to south; New Jersey is 169 miles (271 km). Mississippi's north-south length is 2.0 times (99%) longer than New Jersey's.
Width: Mississippi spans 340 miles (547 km) east to west; New Jersey spans 129 miles (207 km). Mississippi's east-west width is 2.6 times (164%) wider than New Jersey's.
Highest point: Mississippi's highest point is Woodall Mountain at 805 feet (245 m); New Jersey's is High Point at 1,798 feet (548 m). High Point is 993 feet higher than Woodall Mountain.
Lowest point: Mississippi's lowest point is Gulf of Mexico at 0 feet; New Jersey's is Atlantic Ocean at 0 feet. Both lowest points are at or near sea level.
Mississippi vs New Jersey Population and History
Population: Mississippi has a population of 2,943,045 (2024), while New Jersey has 9,500,851 (2024). New Jersey's population is 3.2 times (223%) larger than Mississippi's.
Population density: Mississippi: 62.7 people per square mile vs New Jersey: 1,291.8. New Jersey's population density is 20.6 times higher than Mississippi's.
Biggest city: Mississippi's biggest city is Jackson with 141,449 people; New Jersey's is Newark with 317,303. Newark's population is 2.2 times (124%) larger than Jackson's.
Largest metro area: Mississippi's largest metropolitan area is Memphis, TN-MS-AR metro area (1,339,345 people) vs New Jersey's New York-Newark-Jersey City, NY-NJ metro area (19,940,274). New York-Newark-Jersey City, NY-NJ metro area's population is 14.9 times larger than Memphis, TN-MS-AR metro area's.
History: Mississippi: Admitted to the Union on December 10, 1817, as the 20th state. New Jersey: Admitted to the Union on December 18, 1787, as the 3rd state. In its current form, New Jersey is the older of the two by 30 years.
Mississippi vs New Jersey Economy
GDP: Mississippi's GDP is $158.2 billion (2024) vs New Jersey's $846.0 billion. New Jersey's economic output is 5.3 times (435%) larger than Mississippi's.
GDP per capita: Mississippi: $53,751 per person vs New Jersey: $89,045. New Jersey's GDP per capita is 1.7 times (66%) higher than Mississippi's.
Average income: Mississippi: $52,074 vs New Jersey: $84,893 average income per person (per capita personal income). New Jersey's average income is 1.6 times (63%) higher than Mississippi's.
Mississippi vs New Jersey Counties
Number of counties: Mississippi has 82 counties, while New Jersey has 21. Mississippi's county count is 3.9 times (290%) higher than New Jersey's.
Biggest county by area: Mississippi's largest county is Yazoo County at 922 square miles; New Jersey's is Burlington County at 799 square miles. Yazoo County's land area is 1.2 times (15%) larger than Burlington County's.
Smallest county by area: Mississippi: Alcorn County (400 sq mi) vs New Jersey: Hudson County (46 sq mi). Alcorn County's land area is 8.7 times (766%) larger than Hudson County's.
Most populous county: Mississippi: Harrison County (213,730 people) vs New Jersey: Bergen County (978,641 people). Bergen County's population is 4.6 times (358%) larger than Harrison County's.
Least populous county: Mississippi: Issaquena County (1,295 people) vs New Jersey: Salem County (65,874 people). Salem County's population is 50.9 times larger than Issaquena County's.
Richest county: Mississippi: Madison County ($90,668 per capita income) vs New Jersey: Somerset County ($121,042). Somerset County's income is 1.3 times (34%) richer than Madison County's.
Poorest county: Mississippi: Issaquena County ($27,264 per capita income) vs New Jersey: Cumberland County ($50,843). Cumberland County's income is 1.9 times (86%) richer than Issaquena County's.
Mississippi vs New Jersey Taxes
State income tax: Mississippi has a top income tax rate of 4%, while New Jersey has a top income tax rate of 10.75%. New Jersey's top rate is 6.75 percentage points higher.
Property tax: Mississippi: 0.65% effective rate vs New Jersey: 1.89% of home value per year. New Jersey's rate is 1.24 percentage points higher.
Sales tax: Mississippi: 7.06% combined state and average local rate vs New Jersey: 6.6%. Mississippi's combined rate is 0.46 percentage points higher.
Official Websites
Mississippi official website · New Jersey official website
More Size Comparisons
All Mississippi size comparisons · All New Jersey 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.