Get Current Census Data For Big Horn County, MT - Montana

population icon 2025 Projected Population

The 2025 projected population for Big Horn County is 12,767. This projection assumes an annual rate of change of -0.2%, consistent with the population change from 2023 to 2024 according to the US Census Bureau's 2024 Population Estimates Program.

population icon 2024 Population

With 12,796 people, Big Horn County is the 16th most populated county in the state of Montana out of 56 counties according to the most current US Census data. But watch out, Big Horn County, because Custer County with 11,964 people and Fergus County with 11,862 people are right behind you.

race icon Race & Ethnicity

The largest Big Horn County racial/ethnic groups are American Indian (65.3%) followed by White (27.0%) and Hispanic (4.6%).

income icon Median Income

In 2023, the median household income of Big Horn County households was $56,680. Big Horn County households made slightly more than Rosebud County households ($56,430) and Meagher County households ($56,215) . However, 18.1% of Big Horn County families live in poverty.

age icon Median Age

The median age for Big Horn County residents is 32.3 years young.

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