Custer County, SD ZIP Codes

9 ZIP codes cover all or part of Custer County, South Dakota. The Census Bureau counts 8,892 residents in the county, with a median household income of $84,112 and a median home value of $372,100. Median household income ranges from $68,443 in 57747 to $106,250 in 57744. Its largest communities include Custer, Hermosa, Pringle and Fairburn.

Custer County (Census county figures)

MeasureCensus figure
Residents8,892
Households4,451
Median household income$84,112
Median home value$372,100
Median age57.6
Median rent$1,112

All 9 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)22,674
Households (sum of ZIP codes)10,417
Median household income, range across ZIP codes$68,443 (57747) to $106,250 (57744)
Household-weighted average of ZIP medians (an approximation, not a true median)$81,937
Homeowners81.4%
Households with kids under 1822.8%
Moved in the past year12.6%
Carrier routes in EDDM2GO's route library12 routes, 3,811 homes (4 of 9 ZIP codes)

Top facts

Every ZIP code in Custer County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
57747Hot Springs5,8393,023$68,443$221,00073.6%17.6%17.1%——27% of its land
57730Custer5,5962,733$83,469$378,80080.4%22.2%11.4%72,93192% of its land
82701Newcastle5,4592,119$90,922$231,20087.4%25.2%14.3%——4% of its land
57744Hermosa2,4211,052$106,250$386,80091.3%27.0%4.7%290664% of its land
57735Edgemont1,727773$71,576$165,60078.7%25.1%14.9%——21% of its land
57751Keystone893327$97,969$473,50085.6%36.1%7.6%——33% of its land
57738Fairburn356210$52,308—95.7%25.2%0.0%186100% of its land
57773Pringle20676——90.8%55.3%0.0%——100% of its land
57722Buffalo Gap177104$59,306$69,20083.7%11.5%5.2%29131% of its land

A ZIP code is listed for Custer County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.

Cities and communities

Rankings

Price a mailing to Custer County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Custer County, SD?
57747, 57730, 82701, 57744, 57735, 57751, 57738, 57773 and 57722. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Custer County?
8,892 residents in 4,451 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Custer County?
$84,112 for the county as a whole. Its ZIP codes range from $68,443 (57747) to $106,250 (57744).
Which Custer County ZIP code has the highest median household income?
57744, at $106,250, among ZIP codes with at least 1,000 residents. See the full ranking of Custer County ZIP codes by income.
How many carrier routes and mailboxes are in Custer County?
For the 4 of 9 ZIP codes in EDDM2GO's stored route library: 12 carrier routes reaching 3,811 residential and 202 business mailboxes. The route map loads the rest when you search them.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.