New Jersey Population By County in 2010

Updated on January 27, 2024.

Based on the US Census Vintage data estimates, in 2010, the population of New Jersey was 8,799,451. Among all New Jersey counties, Bergen[object Promise] had the highest population (906,293), followed by Middlesex[object Promise] (810,813), and Essex[object Promise] (784,017). Salem[object Promise] was the least populated county (65,983).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

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

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New Jersey Population By County in 2010
New Jersey Population By County in 2010
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County Population % of State Population
Atlantic 274654 3.12
Bergen 906293 10.30
Burlington 449125 5.10
Camden 513283 5.83
Cape May 97222 1.11
Cumberland 156667 1.78
Essex 784017 8.91
Gloucester 289158 3.29
Hudson 635648 7.22
Hunterdon 127323 1.45
Mercer 367717 4.18
Middlesex 810813 9.21
Monmouth 630454 7.17
Morris 492623 5.60
Ocean 577574 6.56
Passaic 502010 5.71
Salem 65983 0.75
Somerset 324120 3.68
Sussex 148859 1.69
Union 537336 6.11
Warren 108572 1.23