How Big Is New Jersey?
New Jersey is the 46th largest state in the United States, covering approximately 19,211 square kilometers (7,417 square miles). It is home to approximately 9.5 million people. That's about 63% the size of Belgium.
New Jersey
vs
New Jersey on the Map
New Jersey's Geography
Within the United States, New Jersey is the 46th largest state. Its capital is Trenton. It has a population density of about 497 people per km².
How Long and Wide Is New Jersey?
New Jersey spans about 263 km (163 mi) from north to south — roughly the distance from Los Angeles to Las Vegas, and 141 km (88 mi) from east to west — roughly the length of Long Island. At highway speeds, driving 163 miles takes roughly 3 hours.
How Many Times Does New Jersey Fit?
Similar in Size
How Big Is New Jersey Compared to Well-Known Places?
| Place | Area | vs New Jersey |
|---|---|---|
| Rhode Island | 2,706 km² (1,045 sq mi) | 7× smaller |
| New Jersey | 19,211 km² (7,417 sq mi) | — |
| Belgium | 30,528 km² (11,787 sq mi) | 59% larger |
| Switzerland | 41,277 km² (15,937 sq mi) | 2.1× larger |
| Netherlands | 41,543 km² (16,040 sq mi) | 2.2× larger |
| South Korea | 99,720 km² (38,502 sq mi) | 5× larger |
Length and width are measured from the outline on the map. Sources: US Census Bureau (2025). How we calculate this
Explore New Jersey
New Jersey at a Glance
| Statistic | Value |
|---|---|
| Total Area | 19,211 km² (7,417 sq mi) |
| US Size Rank | #46 of 51 |
| Capital | Trenton |
| Population | 9,548,215 |
| Population Density | 497 per km² |