New Jersey Citizen Population By County in 2021 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the citizen population for New Jersey was 8,331,805 and represented 90.23% of the total New Jersey population.

Among all New Jersey counties, Bergen had the highest citizen population (850.02K), followed by Middlesex (739.82K), and Essex (738.74K).

In terms of percentages, Salem had the highest percentage of its population being citizens (98.90%), followed by Gloucester (98.09%), and Sussex (97.86%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

You can see similar information for other states and by state for the United States.

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New Jersey Citizen Population By County in 2021
New Jersey Citizen Population By County in 2021
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County Citizen Population % of County Population
Bergen 850020 89.20
Middlesex 739820 86.15
Essex 738735 86.63
Monmouth 613580 95.55
Ocean 612875 97.27
Hudson 561030 78.66
Camden 496380 95.24
Union 490520 85.76
Morris 468860 92.23
Passaic 445800 85.56
Burlington 444450 96.60
Mercer 338605 87.96
Somerset 308445 89.68
Gloucester 295085 98.09
Atlantic 254730 93.01
Cumberland 144525 93.29
Sussex 141400 97.86
Hunterdon 124055 96.31
Warren 105810 96.76
Cape May 93035 97.43
Salem 64040 98.90