The map above shows Kansas and New Jersey side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Kansas vs New Jersey Geography
Land area: Kansas has a land area of 81,759 square miles (211,754 km²), while New Jersey has 7,355 square miles (19,049 km²). Kansas' land area is 11.1 times larger than New Jersey's.
Total area: Kansas: 82,278 square miles (213,100 km²) vs New Jersey: 8,719 square miles (22,583 km²), including inland and coastal water. Kansas' total area is 9.4 times (844%) larger than New Jersey's.
Length: Kansas is 207 miles (334 km) long from north to south; New Jersey is 169 miles (271 km). Kansas' north-south length is 1.2 times (22%) longer than New Jersey's.
Width: Kansas spans 401 miles (645 km) east to west; New Jersey spans 129 miles (207 km). Kansas' east-west width is 3.1 times (211%) wider than New Jersey's.
Highest point: Kansas's highest point is Mount Sunflower at 4,040 feet (1,231 m); New Jersey's is High Point at 1,798 feet (548 m). Mount Sunflower is 2,242 feet higher than High Point.
Lowest point: Kansas's lowest point is Verdigris River at 679 feet; New Jersey's is Atlantic Ocean at 0 feet. New Jersey's lowest point is 679 feet lower.
Kansas vs New Jersey Population and History
Population: Kansas has a population of 2,970,606 (2024), while New Jersey has 9,500,851 (2024). New Jersey's population is 3.2 times (220%) larger than Kansas'.
Population density: Kansas: 36.3 people per square mile vs New Jersey: 1,291.8. New Jersey's population density is 35.6 times higher than Kansas'.
Biggest city: Kansas's biggest city is Wichita with 400,991 people; New Jersey's is Newark with 317,303. Wichita's population is 1.3 times (26%) larger than Newark's.
Largest metro area: Kansas's largest metropolitan area is Kansas City, MO-KS metro area (2,253,579 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 8.8 times (785%) larger than Kansas City, MO-KS metro area's.
History: Kansas: Admitted to the Union on January 29, 1861, as the 34th 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 74 years.
Kansas vs New Jersey Economy
GDP: Kansas's GDP is $230.5 billion (2024) vs New Jersey's $846.0 billion. New Jersey's economic output is 3.7 times (267%) larger than Kansas'.
GDP per capita: Kansas: $77,601 per person vs New Jersey: $89,045. New Jersey's GDP per capita is 1.1 times (15%) higher than Kansas'.
Average income: Kansas: $65,856 vs New Jersey: $84,893 average income per person (per capita personal income). New Jersey's average income is 1.3 times (29%) higher than Kansas'.
Kansas vs New Jersey Counties
Number of counties: Kansas has 105 counties, while New Jersey has 21. Kansas' county count is 5.0 times (400%) higher than New Jersey's.
Biggest county by area: Kansas's largest county is Butler County at 1,430 square miles; New Jersey's is Burlington County at 799 square miles. Butler County's land area is 1.8 times (79%) larger than Burlington County's.
Smallest county by area: Kansas: Wyandotte County (152 sq mi) vs New Jersey: Hudson County (46 sq mi). Wyandotte County's land area is 3.3 times (228%) larger than Hudson County's.
Most populous county: Kansas: Johnson County (632,276 people) vs New Jersey: Bergen County (978,641 people). Bergen County's population is 1.5 times (55%) larger than Johnson County's.
Least populous county: Kansas: Greeley County (1,152 people) vs New Jersey: Salem County (65,874 people). Salem County's population is 57.2 times larger than Greeley County's.
Richest county: Kansas: Greeley County ($134,780 per capita income) vs New Jersey: Somerset County ($121,042). Greeley County's income is 1.1 times (11%) richer than Somerset County's.
Poorest county: Kansas: Wyandotte County ($42,878 per capita income) vs New Jersey: Cumberland County ($50,843). Cumberland County's income is 1.2 times (19%) richer than Wyandotte County's.
Kansas vs New Jersey Taxes
State income tax: Kansas has a top income tax rate of 5.58%, while New Jersey has a top income tax rate of 10.75%. New Jersey's top rate is 5.17 percentage points higher.
Property tax: Kansas: 1.25% effective rate vs New Jersey: 1.89% of home value per year. New Jersey's rate is 0.64 percentage points higher.
Sales tax: Kansas: 8.71% combined state and average local rate vs New Jersey: 6.6%. Kansas's combined rate is 2.11 percentage points higher.
Official Websites
Kansas official website · New Jersey official website
More Size Comparisons
All Kansas 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.