The map above shows Louisiana and New Jersey side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Louisiana vs New Jersey Geography
Land area: Louisiana has a land area of 43,213 square miles (111,921 km²), while New Jersey has 7,355 square miles (19,049 km²). Louisiana's land area is 5.9 times (488%) larger than New Jersey's.
Total area: Louisiana: 52,375 square miles (135,652 km²) vs New Jersey: 8,719 square miles (22,583 km²), including inland and coastal water. Louisiana's total area is 6.0 times (501%) larger than New Jersey's.
Length: Louisiana is 301 miles (484 km) long from north to south; New Jersey is 169 miles (271 km). Louisiana's north-south length is 1.8 times (78%) longer than New Jersey's.
Width: Louisiana spans 356 miles (574 km) east to west; New Jersey spans 129 miles (207 km). Louisiana's east-west width is 2.8 times (176%) wider than New Jersey's.
Highest point: Louisiana's highest point is Driskill Mountain at 533 feet (162 m); New Jersey's is High Point at 1,798 feet (548 m). High Point is 1,265 feet higher than Driskill Mountain.
Lowest point: Louisiana's lowest point is New Orleans at -8 feet; New Jersey's is Atlantic Ocean at 0 feet. Louisiana's lowest point is 8 feet lower.
Louisiana vs New Jersey Population and History
Population: Louisiana has a population of 4,597,740 (2024), while New Jersey has 9,500,851 (2024). New Jersey's population is 2.1 times (107%) larger than Louisiana's.
Population density: Louisiana: 106.4 people per square mile vs New Jersey: 1,291.8. New Jersey's population density is 12.1 times higher than Louisiana's.
Biggest city: Louisiana's biggest city is New Orleans with 362,701 people; New Jersey's is Newark with 317,303. New Orleans' population is 1.1 times (14%) larger than Newark's.
Largest metro area: Louisiana's largest metropolitan area is New Orleans-Metairie, LA metro area (966,230 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 20.6 times larger than New Orleans-Metairie, LA metro area's.
History: Louisiana: Admitted to the Union on April 30, 1812, as the 18th 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 25 years.
Louisiana vs New Jersey Economy
GDP: Louisiana's GDP is $329.2 billion (2024) vs New Jersey's $846.0 billion. New Jersey's economic output is 2.6 times (157%) larger than Louisiana's.
GDP per capita: Louisiana: $71,594 per person vs New Jersey: $89,045. New Jersey's GDP per capita is 1.2 times (24%) higher than Louisiana's.
Average income: Louisiana: $61,897 vs New Jersey: $84,893 average income per person (per capita personal income). New Jersey's average income is 1.4 times (37%) higher than Louisiana's.
Louisiana vs New Jersey Counties
Number of counties: Louisiana has 64 counties, while New Jersey has 21. Louisiana's county count is 3.0 times (205%) higher than New Jersey's.
Biggest county by area: Louisiana's largest county is Vernon Parish at 1,327 square miles; New Jersey's is Burlington County at 799 square miles. Vernon Parish's land area is 1.7 times (66%) larger than Burlington County's.
Smallest county by area: Louisiana: Orleans Parish (170 sq mi) vs New Jersey: Hudson County (46 sq mi). Orleans Parish's land area is 3.7 times (267%) larger than Hudson County's.
Most populous county: Louisiana: East Baton Rouge Parish (453,022 people) vs New Jersey: Bergen County (978,641 people). Bergen County's population is 2.2 times (116%) larger than East Baton Rouge Parish's.
Least populous county: Louisiana: Tensas Parish (3,844 people) vs New Jersey: Salem County (65,874 people). Salem County's population is 17.1 times larger than Tensas Parish's.
Richest county: Louisiana: St. Tammany Parish ($82,398 per capita income) vs New Jersey: Somerset County ($121,042). Somerset County's income is 1.5 times (47%) richer than St. Tammany Parish's.
Poorest county: Louisiana: East Carroll Parish ($36,751 per capita income) vs New Jersey: Cumberland County ($50,843). Cumberland County's income is 1.4 times (38%) richer than East Carroll Parish's.
Louisiana vs New Jersey Taxes
State income tax: Louisiana has a top income tax rate of 3%, while New Jersey has a top income tax rate of 10.75%. New Jersey's top rate is 7.75 percentage points higher.
Property tax: Louisiana: 0.53% effective rate vs New Jersey: 1.89% of home value per year. New Jersey's rate is 1.36 percentage points higher.
Sales tax: Louisiana: 10.13% combined state and average local rate vs New Jersey: 6.6%. Louisiana's combined rate is 3.53 percentage points higher.
Official Websites
Louisiana official website · New Jersey official website
More Size Comparisons
All Louisiana 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.