New Jersey Population By County in 2015

Updated on January 27, 2024.

Based on the US Census Vintage data estimates, in 2015, the population of New Jersey was 8,870,312. Among all New Jersey counties, Bergen[object Promise] had the highest population (926,481), followed by Middlesex[object Promise] (825,471), and Essex[object Promise] (790,546). Salem[object Promise] was the least populated county (63,754).

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 2015
New Jersey Population By County in 2015
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County Population % of State Population
Atlantic 270206 3.05
Bergen 926481 10.45
Burlington 447906 5.05
Camden 507760 5.72
Cape May 94330 1.06
Cumberland 154580 1.74
Essex 790546 8.91
Gloucester 291022 3.28
Hudson 664595 7.49
Hunterdon 125569 1.42
Mercer 368266 4.15
Middlesex 825471 9.31
Monmouth 624180 7.04
Morris 494370 5.57
Ocean 587238 6.62
Passaic 504556 5.69
Salem 63754 0.72
Somerset 329682 3.72
Sussex 143059 1.61
Union 549954 6.20
Warren 106787 1.20