Custer

Source:

Idaho

Custer is a low-population county in Idaho with 5 ZIP codes, 4,028 people, and below-median household income among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.

National county placement

According to ACS 5-Year Estimates, Custer, ID sits among US counties with a below-median household income, on a low-population county population base, across a compact ZIP cluster.

40th pct
household income vs 3,210 US counties
4,028
combined ZIP population
5
USPS ZIP codes covered
$63,847
avg ZIP median income

Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.

Custer lands in the national county income distribution as below-median household income on low-population county footing (FIPS 16037, 5 ZIPs, combined population 4,028). Sort the ZIP table by population before treating the county mean as uniform.

Below-median income on a compact ZIP cluster (5 codes). Population density still swings from downtown to farm-edge; the density column is the fastest filter before a side-by-side compare. County-level HUD and FBI inputs still key off FIPS 16037.

Save two ZIPs from the table into your shortlist, then open a compare link - that is the return path a static county summary cannot replace. All figures here come from Census ACS 2023 5-Year Estimates and USPS ZCTA files.

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5

Total ZIPs

4,028

Total Population

ZIP Codes in Custer

Side-by-side: Compare 83226 vs 83251 →

ZIP Code City Population Density
83226 Challis 2,504 0
83251 Mackay 1,097 0
83278 Stanley 186 -
83227 Clayton 142 0
83235 Ellis 99 0

What are common questions about ZIP codes in this county?

What is the population of Custer?
Custer has a total population of 4,028 across 5 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Custer?
Custer includes 5 ZIP codes: 83226, 83251, 83278, 83227, 83235.
Data sources

Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023). Verify with Census Bureau →

Source: HUD USPS Crosswalk (ZIP-to-county mapping). Verify with HUD →

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.

Related

Compare any two ZIPs side by side

Read our methodology : how this data is sourced, computed, and verified.