New Jersey Counties by Population (2024)

by Kristen Carney Kristen Carney

Updated: June 20, 2024

The most populated counties in New Jersey are Bergen County with 957,736, Middlesex County at 863,623, Essex County with 851,117, Hudson County at 705,472, and Ocean County with 659,197. 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 2023 Population Estimates Program.

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Rank County Population
1 Bergen County 957,736
2 Middlesex County 863,623
3 Essex County 851,117
4 Hudson County 705,472
5 Ocean County 659,197
6 Monmouth County 642,799
7 Union County 572,726
8 Camden County 527,196
9 Morris County 514,423
10 Passaic County 513,395
11 Burlington County 469,167
12 Mercer County 381,671
13 Somerset County 348,842
14 Gloucester County 308,423
15 Atlantic County 275,213
16 Cumberland County 152,326
17 Sussex County 146,132
18 Hunterdon County 130,183
19 Warren County 111,252
20 Cape May County 94,610
21 Salem County 65,338

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2023. U.S. Census Bureau, Population Division. Web. May 2024. http://www.census.gov/.

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