NJ is a populated state. This is no secret at all. In fact, New Jersey ranks as the most densely populated state nearly every year (it’s a heated battle with Rhode Island).

In addition to housing a gargantuan 9.5 million residents, NJ is home to a staggering number of towns and cities. 564 to be exact. This spreads the population out a bit amongst different municipalities. Still, many New Jersey cities remain heavily populated.

A 2025 study conducted by New Jersey Demographics looked to find the most populous cities in the state.

So, let’s get into it. Which towns and cities are home to the highest populations in NJ?

The Most Populated Towns in NJ

10. Trenton, NJ

County: Mercer

Population: 89,620

9. Hamilton, NJ

County: Mercer

Population: 91,640

8. Toms River, NJ

County: Ocean

Population: 99,091

7. Woodbridge, NJ

County: Middlesex

Population: 103,194

6. Edison, NJ

County: Middlesex

Population: 106,836

5. Elizabeth, NJ

County: Union

Population: 135,829

4. Lakewood, NJ

County: Ocean

Population: 139,866

3. Paterson, NJ

County: Passaic

Population: 156,452

2. Jersey City, NJ

County: Hudson

Population: 291,657

1. Newark, NJ

County: Essex

Population: 304,960