New Jersey Population By County in 2018
Updated on December 2, 2021.

According to the US Census Bureau population estimates, there were 8,891,730 people living in New Jersey in 2018. Bergen County was the most populated county with 932,897 residents, followed by Middlesex County with 825,677 residents, and Essex County with 800,530 residents. Salem County with a population of 62,776 was the least populated county in New Jersey in 2018.

Use the map below to interactively explore the population of each county in New Jersey in 2018. The data can also be explored further by sorting and filtering with the table below.

Hover/Click on the counties to see the values.
New Jersey Population By County in 2018
See also Population estimate for other years:
Table of New Jersey Population By County in 2018
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County Population % of State Population
Atlantic 263,994 2.97%
Bergen 932,897 10.49%
Burlington 445,429 5.01%
Camden 506,685 5.70%
Cape May 92,604 1.04%
Cumberland 150,274 1.69%
Essex 800,530 9.00%
Gloucester 291,754 3.28%
Hudson 672,390 7.56%
Hunterdon 125,265 1.41%
Mercer 368,720 4.15%
Middlesex 825,677 9.29%
Monmouth 620,859 6.98%
Morris 493,084 5.55%
Ocean 601,649 6.77%
Passaic 503,192 5.66%
Salem 62,776 0.71%
Somerset 330,772 3.72%
Sussex 140,995 1.59%
Union 556,475 6.26%
Warren 105,709 1.19%