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Population per Square Mile in New Jersey, by County

Population per Square Mile for every county in New Jersey, ranked. The highest is Hudson County at 15,551.5 and the lowest is Salem County at 196.7.

New Jersey: 1,270.4 · United States: n/a · median county in New Jersey: 1,116.0

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#County Population per Square Mile
1Hudson County15,551.5
2Essex County6,844.9
3Union County5,636.8
4Bergen County4,133.8
5Middlesex County2,817.4
6Passaic County2,799.2
7Camden County2,381.9
8Mercer County1,718.9
9Monmouth County1,378.4
10Somerset County1,158.9
11Morris County1,116.0
12Ocean County1,041.5
13Gloucester County953.2
14Burlington County585.3
15Atlantic County497.3
16Cape May County377.5
17Cumberland County317.2
18Warren County310.9
19Hunterdon County304.2
20Sussex County281.2
21Salem County196.7

People divided by land area. Water is excluded, so lake and coastal counties are not unfairly diluted.

Source: ACS 2020-2024 5-Year Estimates, 2024.

New Jersey ranks 2nd of 52 states for population per square mile.

Population per Square Mile in other states

Other statistics for New Jersey by county