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County ProfileID

Custer County

Population: 4,275 · 5 ZIP codes

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
4,275
People
Median age
60
Housing
Total households
1,943
Income
Median household income
$67,574
Housing
Total housing units
3,137
Employment
Employment rate
48%
Education
Bachelor’s degree or higher
29.3%
Healthcare
Insured population
87.9%
County details
Local time 04:35:25(MT)
NameCuster
Total ZIP codes5total
ZIP codes (by type)
5 Standard
Area code208, 986
TimezoneMountain Time (MT)
Coordinates44.273351, -114.2522675
Land area4,922.2 sq miles(12,748.4 km²)

Map of Custer county, Idaho with ZIP codes

Map of Custer County, Idaho and ZIP codes

Cities and Communities in Custer County

Compare the largest cities in Custer County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.

CityPopulation
Median incomeHousehold
ZIP codes
Challis902$40,7501ZIPs
Mackay439$43,8971ZIPs
Stanley1161ZIPs
Ellis831ZIPs
Clayton101ZIPs

Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP Codes in Custer County

Review the most populated postal areas across Custer County. Use the ranking below to compare resident density and demographic scales between the county's major zones.

ZIPCity
Median incomeHousehold
Population (ZIP)
83226Challis$36,4582,294
83251Mackay$73,4821,100
83278Stanley$81,602416
83227Clayton157
83235Ellis83

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS