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ZIP code 57341: Gann Valley, SD

57341 is a ZIP code in Gann Valley, South Dakota, mainly in Buffalo County. About 79 people live here.

Population
79
Median household income
—
Typical home value
—
Median rent
—gross, per month
Median age
34.5
Homeowners
81.5%of occupied homes
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Shaded: ZIP code 57341's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 57341 details

CityGann Valley
StateSouth Dakota
CountyBuffalo County (also partly Brule County)
Metro areaNot in a metro or micro area
Time zoneCentral Time (UTC−6), observes daylight saving time
TypeStandard (delivery area)
Land area248 sq mi, plus 0.7 sq mi of water
Population density0 people per sq mi
Bachelor's degree or higher52.3% of adults 25+
Center coordinates44.09467, -99.11798

ZIP codes near 57341

ZIP codeCityDistancePopulation
57339Fort Thompson, SD17.3 mi1,390
57370Pukwana, SD19.4 mi894
57346Stephan, SD19.9 mi13
57325Chamberlain, SD20.4 mi3,335
57382Wessington Springs, SD21.9 mi1,180
57326Chamberlain, SD22.3 mi—
57355Kimball, SD23.4 mi1,120
57548Lower Brule, SD23.9 mi1,442

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 57341

What city is ZIP code 57341?

ZIP code 57341 is in Gann Valley, SD, in Buffalo County.

What county is ZIP code 57341 in?

57341 is mainly in Buffalo County, South Dakota, and partly in Brule County.

What is the population of ZIP code 57341?

About 79 people live in ZIP code 57341, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 57341 in?

57341 is in Central Time (UTC−6). It observes daylight saving time.