Demographics & People — Big Arm, Montana
Population Overview
| Population (Census) | 142 |
|---|
| Estimated 2026 | ~400 |
|---|
| Median Age | 29.9 |
|---|
| Total Households | 49 |
|---|
| Family Households | 49 |
|---|
| Average Household Size | 2.9 |
|---|
| Diversity Index | 0.0 (relatively homogeneous) |
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Race & Ethnicity
| White | 56 |
|---|
| Black or African American | 0 |
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| Asian | 0 |
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| Hispanic or Latino | 0 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 87 |
| Other groups | 58 |
| Italian | 23 |
Language
| English Only | 115 |
|---|
| Spanish | 0 |
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| Population 5+ | 115 |
|---|
Veterans
| Veterans | 12 |
|---|
| Population 18+ | 118 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013 (county fallback). Data for Big Arm, Montana.
