# Counties in New Jersey by population, 2025

All 21 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `population`
- Unit: persons
- Definition: Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.
- Source: U.S. Census Bureau, Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program) (https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/)
- Retrieved: 2026-10-08
- Citation: U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.
- Web page: https://invokely.ai/rankings/population/new-jersey-counties
- CSV: https://invokely.ai/download/rankings/population/new-jersey-counties.csv

| Rank | Place | persons |
|---:|---|---:|
| 1 | Bergen County | 977,026 |
| 2 | Essex County | 896,379 |
| 3 | Middlesex County | 883,335 |
| 4 | Hudson County | 735,033 |
| 5 | Ocean County | 673,746 |
| 6 | Monmouth County | 651,035 |
| 7 | Union County | 601,863 |
| 8 | Camden County | 535,799 |
| 9 | Passaic County | 531,624 |
| 10 | Morris County | 524,251 |
| 11 | Burlington County | 481,439 |
| 12 | Mercer County | 399,289 |
| 13 | Somerset County | 356,486 |
| 14 | Gloucester County | 312,638 |
| 15 | Atlantic County | 278,657 |
| 16 | Cumberland County | 157,148 |
| 17 | Sussex County | 148,063 |
| 18 | Hunterdon County | 131,781 |
| 19 | Warren County | 112,953 |
| 20 | Cape May County | 93,390 |
| 21 | Salem County | 66,280 |