Population density in New Jersey

Population density in New Jersey was 501.2 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is up 0.4% from 2024. That is the 2nd highest of 51 states in 2025.

2025, inhabitants per km²501.2
Change on 2024+0.4%
Rank2nd of 51US states ranked
Series high501.22025
Series low486.42021

Population density in New Jersey, 2020 to 2025

CSVChart (SVG)

4854904955005052020202120222023202420252020: 486.7 inhabitants per km²2021: 486.4 inhabitants per km²2022: 488.1 inhabitants per km²2023: 493.2 inhabitants per km²2024: 499 inhabitants per km²2025: 501.2 inhabitants per km²
inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09, published 2026-03-26.
All 6 values
Periodinhabitants per km²
2025501.2
2024499
2023493.2
2022488.1
2021486.4
2020486.7

Compared with United States

Place2025
New Jersey501.2
United States37.3

Rankings

Definition

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

How to cite

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

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Questions

What is the population density in New Jersey?

Population density in New Jersey was 501.2 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is up 0.4% from 2024. That is the 2nd highest of 51 states in 2025.

Where does this figure come from?

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved by Invokely on 2026-10-09.

What was the highest population density in New Jersey?

501.2 inhabitants per km² in 2025, the highest value since 2020 in this series.

More statistics for New Jersey

All statistics for New Jersey