Custer County is in the mountains of central Idaho, with Challis as the county seat. The 2020 population was 4,275 across 4,937 square miles, making it Idaho's third-largest county by area. The county was named after the General Custer gold mine, staked in 1876. Borah Peak, Idaho's highest point at 12,662 feet, is in the Lost River Range on the county's eastern side. The Sawtooth Range runs along the west. Redfish Lake near Stanley, named for the sockeye salmon that once turned it red each fall, is the most visited spot in the area. Challis Valley Pioneer Days is the main annual event. About one person lives per square mile here.
Search a city in the County of Custer
Get the contact information for all cities and towns in this county. Find general information, official websites, email, phone numbers, addresses, and much more.
Custer County administration contact details
| Custer County Seat | Challis |
|---|---|
| Phone number of Custer County administration | (208) 879-2360 |
| Custer County official website | https://www.co.custer.id.us |
| Custer County Clerk | Lynette Callaway |
| Custer County Auditor | Cody Just |
| Custer County Commissioner, District 1 | Wayne Butts |
| Custer County Commissioner, District 2 | Steve Smith |
| Custer County Commissioner, District 3 | Mike Fischer |
Custer County Sheriff's Office and Jail Information
| Number of prisons | 1 |
|---|---|
| Jail names | Custer County Jail |
| Sheriff office address | 801 E Main Ave, Challis, ID 83226 |
| Sheriff office phone number | 208-879-2232 |
| Inmate search information | To locate an inmate in Custer County, contact the sheriff's office directly via phone or visit their official website for more information. |
| Clerk of Court name | Lisa Ball |
| Clerk of Court address | 801 E Main Ave, Challis, ID 83226 |
Custer County Statistics
| Number of cities/towns/villages | 3 |
|---|---|
| Population | 4400 |
| Area | 4939 sq mi |
| Density | 1 /sq mi |
| Altitude | 5330 ft |
| Median Household Income | $51,000 |
| Poverty rate | 14% |
| Unemployment rate | 4% |
| Educational Attainment | 25% (Bachelor's Degree or higher) |
Environmental risk in Custer County, ID
| Overall risk | Very Low |
|---|---|
| Expected Annual Loss | Very Low |
| Social Vulnerability | Relatively Low |
| Community Resilience | Very Low |
| Avalanche Risk | Relatively Low |
| Coastal Flooding Risk | Not Applicable |
| Cold Wave Risk | Relatively Moderate |
| Drought Risk | Very Low |
| Earthquake Risk | Relatively Low |
List of cities and towns in Idaho County by population size
Click on a city or town to learn more