Custer County | |
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![]() Mill used to process gold and silver ore at Yankee Fork mining operations. | |
![]() Location within the U.S. state of Idaho | |
![]() Idaho's location within the U.S. | |
Coordinates: 44°14′N 114°17′W / 44.23°N 114.29°W | |
Country | ![]() |
State | ![]() |
Founded | January 8, 1881 |
Named for | General Custer gold mine |
Seat | Challis |
Largest city | Challis |
Area | |
• Total | 4,937 sq mi (12,790 km2) |
• Land | 4,921 sq mi (12,750 km2) |
• Water | 16 sq mi (40 km2) 0.3% |
Population (2020) | |
• Total | 4,249 |
• Density | 0.88/sq mi (0.34/km2) |
Time zone | UTC−7 (Mountain) |
• Summer (DST) | UTC−6 (MDT) |
Congressional district | 2nd |
Website | www |
Custer County is a county in U.S. state of Idaho. In the 2020 census, the population was 4,249.[1] The county seat is Challis.[2]