Arco city, Idaho
Official LSAD Designation: Arco city • Census GEOID: 1603160
• Butte County
Demographics & Population Profile
Population and demographics for Arco city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 918 | — | 2025 | Census |
| Median Age | 34.6 yrs | ±5.4 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 327 | ±68 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).