Data / Population density / Jefferson Parish

Population density in Jefferson Parish

Population density in Jefferson Parish was 553.6 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is down 0.2% from 2024. That is the 2nd highest of 64 counties in 2025.

2025, inhabitants per km²553.6
Change on 2024-0.2%
Rank2nd of 64Counties in Louisiana ranked
Series high564.32020
Series low550.92023

Population density in Jefferson Parish, 2020 to 2025

CSVChart (SVG)

5505555605652020202120222023202420252020: 564.3 inhabitants per km²2021: 557.3 inhabitants per km²2022: 551.9 inhabitants per km²2023: 550.9 inhabitants per km²2024: 554.9 inhabitants per km²2025: 553.6 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
2025553.6
2024554.9
2023550.9
2022551.9
2021557.3
2020564.3

Compared with Louisiana and United States

Place2025
Jefferson Parish553.6
Louisiana41.3
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 Jefferson Parish?

Population density in Jefferson Parish was 553.6 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is down 0.2% from 2024. That is the 2nd highest of 64 counties 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 Jefferson Parish?

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

More statistics for Jefferson Parish

All statistics for Jefferson Parish