U.S. state profile · NJ
New Jersey: area, population and density
New Jersey has 7,355 sq mi of land and a 2025 population estimate of 9,548,215; calculated population density is 501 people/km².
Sources: U.S. Census Bureau Gazetteer Files · 2026 · U.S. Census Bureau Population Estimates Program · 2025.
New Jersey ranks 46th of 51 by land area, 11th by population and 2nd by calculated population density among the U.S. states and DC. Density uses the displayed population divided by land area converted to square kilometres.
- Land area
- 7,355 sq miU.S. Census Bureau Gazetteer Files · 2026
- Population
- 9,548,215U.S. Census Bureau Population Estimates Program · 2025
- Calculated density
- 501 people/km²Population ÷ land area in km²
Reading the figures
New Jersey in the U.S. comparison set
New Jersey has 7,355 sq mi of land area and a population estimate of 9,548,215 for 2025. In the 51-place state and DC set, it is 46th by land area, 11th by population, and 2nd by calculated density.
Density is not a separately reported value here. It is calculated from the population and land area above, converted to square kilometres, so the result can be compared with supported country figures.
U.S. boundary outline: Census TIGER/Line 2025. The drawing is fitted to this profile panel; use a comparison page for a shared-area scale.