New Jersey Counties by Population (2025)
by Kristen Carney 
Updated: August 7, 2025
The most populous counties in New Jersey are Bergen County with 978,641, Middlesex County at 890,119, Essex County with 881,527, Hudson County at 736,185, and Ocean County with 666,434. You can get the most current Census population data for all 21 New Jersey counties, sorted from the most populous counties in New Jersey to the least, according to the 2024 Population Estimates Program.
Sure, you can copy this list right into your favorite spreadsheet tool. Or save yourself formatting headaches and grab the latest New Jersey counties population data as a ready-to-use Excel™ file below. It's time to stop searching and start digging into data!
| Rank | County | Population |
|---|---|---|
| 1 | Bergen County | 978,641 |
| 2 | Middlesex County | 890,119 |
| 3 | Essex County | 881,527 |
| 4 | Hudson County | 736,185 |
| 5 | Ocean County | 666,434 |
| 6 | Monmouth County | 647,520 |
| 7 | Union County | 594,160 |
| 8 | Camden County | 533,988 |
| 9 | Passaic County | 526,597 |
| 10 | Morris County | 523,053 |
| 11 | Burlington County | 475,515 |
| 12 | Mercer County | 392,138 |
| 13 | Somerset County | 357,467 |
| 14 | Gloucester County | 311,783 |
| 15 | Atlantic County | 279,114 |
| 16 | Cumberland County | 155,678 |
| 17 | Sussex County | 147,444 |
| 18 | Hunterdon County | 131,708 |
| 19 | Warren County | 112,031 |
| 20 | Cape May County | 93,875 |
| 21 | Salem County | 65,874 |
|
United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2024. Population Division. May 2025. |
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