Cities and Towns in Custer County, Idaho
Founded in 1881, Custer County is one of 44 counties in the state of Idaho. Historically, Custer County was formed from Alturas and Lemhi Counties. The city of Challis is the county seat. With FIPS code of 37, Custer County has a population of 4,428 and area of 4,926 square miles (12,758 km²).
List of all cities in Custer County, ID alphabetically
| City/Town | Postal Code | Area Code |
| Bonanza, ID | 83278 | 208 |
| Challis, ID | 83226 | 208 |
| Chilly, ID | 83251 | 208 |
| Clayton, ID | 83227 | 208 |
| Ellis, ID | 83235 | 208 |
| Lower Stanley, ID | 83278 | 208 |
| Mackay, ID | 83251 | 208 |
| Redfish Lake, ID | 83278 | 208 |
| Stanley, ID | 83278 | 208 |
| Sunbeam, ID | 83278 | 208 |
| Torrey, ID | 83227 | 208 |
Major Cities and Towns in Custer County, Idaho
Challis
Area and Population
- Area: 1.71 square miles
- Population: Approximately 1,081
- Zip Codes: 83226
- Latitude: 44.5044° N
- Longitude: 114.2241° W
Location and History
Challis is the county seat and largest city in Custer County, located in central Idaho along the Salmon River. The town was established in the late 19th century during the Idaho gold rush and named after A.P. Challis, a mining engineer who played a significant role in the development of the region. Challis quickly grew as a center for mining, particularly for gold, silver, and lead, which fueled its early economy. The town’s strategic location along the Salmon River and its proximity to rich mineral deposits made it a bustling hub during the mining boom. Today, Challis is known for its outdoor recreation opportunities, including hunting, fishing, and exploring the nearby mountains and wilderness areas. The town has retained its historic charm, with many original buildings and a strong connection to its mining heritage.
Major Schools and Landmarks
Challis is served by the Challis Joint School District, with Challis Junior-Senior High School and Challis Elementary School being the main educational institutions. The town is home to several notable landmarks, including the Land of the Yankee Fork State Park, which offers exhibits on the region’s mining history, and the Challis Hot Springs, a popular destination for soaking in natural mineral waters. The nearby Frank Church-River of No Return Wilderness provides opportunities for hiking, rafting, and wildlife viewing, making Challis a gateway to some of Idaho’s most rugged and beautiful landscapes.
Mackay
Area and Population
- Area: 0.85 square miles
- Population: Approximately 517
- Zip Codes: 83251
- Latitude: 43.9121° N
- Longitude: 113.6139° W
Location and History
Mackay is a small city located south of Challis in Custer County, nestled in the Lost River Valley. The town was founded in the early 20th century as a mining community and named after John W. Mackay, a prominent mining tycoon. Mackay developed rapidly with the discovery of rich copper deposits in the nearby mountains, leading to the establishment of several mines and smelters in the area. The town’s economy was closely tied to the copper industry, which provided employment for many residents. Although the mining industry has declined, Mackay has remained a vibrant community with a strong connection to its mining past. The town’s scenic location at the base of the Lost River Range, home to Idaho’s highest peaks, makes it a popular destination for outdoor enthusiasts.
Major Schools and Landmarks
Mackay is served by the Mackay School District, with Mackay Junior-Senior High School and Mackay Elementary School being the primary educational institutions. The town is known for its historic mining sites, including the Mackay Mine Hill, where visitors can explore old mines, trails, and interpretive signs that tell the story of the area’s mining history. The nearby Mount Borah, Idaho’s tallest mountain, offers challenging hikes and stunning views, attracting climbers and adventurers from around the country. The Lost River Valley, with its vast open spaces and rugged mountains, provides ample opportunities for hiking, fishing, hunting, and camping.
Stanley
Area and Population
- Area: 0.36 square miles
- Population: Approximately 68
- Zip Codes: 83278
- Latitude: 44.2166° N
- Longitude: 114.9372° W
Location and History
Stanley is a small town located in the northern part of Custer County, in the heart of the Sawtooth Valley. The town was established in the late 19th century as a supply center for miners and trappers working in the surrounding mountains. Named after Captain John Stanley, a trapper and explorer, the town has long been a gateway to the Sawtooth Wilderness, one of Idaho’s most stunning natural areas. Stanley’s economy has traditionally been based on tourism, with visitors drawn to the area’s natural beauty, including the Sawtooth Mountains, the Salmon River, and numerous alpine lakes. The town’s remote location and pristine environment make it a haven for outdoor enthusiasts and those seeking a peaceful retreat.
Major Schools and Landmarks
Stanley is part of the Challis Joint School District, with students typically attending schools in nearby Challis. The town is known for its access to outdoor recreation, including hiking, fishing, rafting, and skiing. Notable landmarks include the Sawtooth Fish Hatchery, which plays a vital role in the conservation of Idaho’s native fish species, and the Redfish Lake, a popular destination for boating, swimming, and camping. The Stanley Museum, housed in a historic ranger station, offers exhibits on the area’s history, including its mining, logging, and conservation efforts. Stanley’s small size and breathtaking surroundings make it a unique and cherished location in Custer County.
