Data / Population / Big Horn County

Population in Big Horn County

Population in Big Horn County was 12,752 in 2025, according to the U.S. Census Bureau. That is down 0.7% from 2024. That is the 16th highest of 56 counties in 2025.

2025, persons12,752
Change on 2024-0.7%
Rank16th of 56Counties in Montana ranked
Series high13,0792020
Series low12,7522025

Population in Big Horn County, 2020 to 2025

CSVChart (SVG)

12.7K12.8K12.9K13K13.1K2020202120222023202420252020: 13,079 persons2021: 12,893 persons2022: 12,873 persons2023: 12,860 persons2024: 12,847 persons2025: 12,752 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
202512,752
202412,847
202312,860
202212,873
202112,893
202013,079

Compared with Montana and United States

Place2025
Big Horn County12,752
Montana1,144,694
United States341,784,857

Rankings

Definition

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

How to cite

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Questions

What is the population in Big Horn County?

Population in Big Horn County was 12,752 in 2025, according to the U.S. Census Bureau. That is down 0.7% from 2024. That is the 16th highest of 56 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). Retrieved by Invokely on 2026-10-08.

What was the highest population in Big Horn County?

13,079 in 2020, the highest value since 2020 in this series.

More statistics for Big Horn County

All statistics for Big Horn County