Data / Population density / Fallon County

Population density in Fallon County

Population density in Fallon County was 0.7 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is unchanged from 2024. That is the 36th highest of 56 counties in 2025.

2025, inhabitants per km²0.7
Change on 20240%
Rank36th of 56Counties in Montana ranked
Series high0.72022
Series low0.72024

Population density in Fallon County, 2020 to 2025

CSVChart (SVG)

0.710.710.720.720.730.732020202120222023202420252020: 0.7 inhabitants per km²2021: 0.7 inhabitants per km²2022: 0.7 inhabitants per km²2023: 0.7 inhabitants per km²2024: 0.7 inhabitants per km²2025: 0.7 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
20250.7
20240.7
20230.7
20220.7
20210.7
20200.7

Compared with Montana and United States

Place2025
Fallon County0.7
Montana3
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 Fallon County?

Population density in Fallon County was 0.7 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is unchanged from 2024. That is the 36th highest of 56 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 Fallon County?

0.7 inhabitants per km² in 2022, the highest value since 2020 in this series.

More statistics for Fallon County

All statistics for Fallon County