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ZIP code 57738: Fairburn, SD

57738 is a ZIP code in Fairburn, South Dakota, mainly in Custer County, part of the Rapid City, SD metro area. About 356 people live here.

Population
356
Median household income
$52,308
Typical home value
—
Median rent
—gross, per month
Median age
65.5
Homeowners
95.7%of occupied homes
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Shaded: ZIP code 57738's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 57738 details

CityFairburn
StateSouth Dakota
CountyCuster County
Metro areaRapid City, SD
Time zoneMountain Time (UTC−7), observes daylight saving time
TypeStandard (delivery area)
Land area185.1 sq mi, plus 0.6 sq mi of water
Population density2 people per sq mi
Bachelor's degree or higher1.2% of adults 25+
Average commute32.7 minutes
Center coordinates43.68485, -103.15872

ZIP codes near 57738

ZIP codeCityDistancePopulation
57744Hermosa, SD9.8 mi2,421
57751Keystone, SD18.5 mi893
57722Buffalo Gap, SD18.8 mi177
57773Pringle, SD22.6 mi206
57766Oral, SD22.7 mi176
57703Rapid City, SD22.8 mi18,013
57730Custer, SD24.6 mi5,596
57725Caputa, SD25.0 mi130

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

About ZIP code 57738

What city is ZIP code 57738?

ZIP code 57738 is in Fairburn, SD, in Custer County.

What county is ZIP code 57738 in?

57738 is mainly in Custer County, South Dakota.

What is the population of ZIP code 57738?

About 356 people live in ZIP code 57738, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 57738 in?

57738 is in Mountain Time (UTC−7). It observes daylight saving time.