Data / Population density / Jersey County

Population density in Jersey County

Population density in Jersey County was 22.1 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is unchanged from 2024. That is the 41st highest of 102 counties in 2025.

2025, inhabitants per km²22.1
Change on 20240%
Rank41st of 102Counties in Illinois ranked
Series high22.52020
Series low22.12024

Population density in Jersey County, 2020 to 2025

CSVChart (SVG)

22.122.222.322.422.52020202120222023202420252020: 22.5 inhabitants per km²2021: 22.3 inhabitants per km²2022: 22.2 inhabitants per km²2023: 22.1 inhabitants per km²2024: 22.1 inhabitants per km²2025: 22.1 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
202522.1
202422.1
202322.1
202222.2
202122.3
202022.5

Compared with Illinois and United States

Place2025
Jersey County22.1
Illinois88.5
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 Jersey County?

Population density in Jersey County was 22.1 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is unchanged from 2024. That is the 41st highest of 102 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 Jersey County?

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

More statistics for Jersey County

All statistics for Jersey County