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ZIP code 57051: Oldham, SD

57051 is a ZIP code in Oldham, South Dakota, mainly in Kingsbury County. About 163 people live here.

Population
163
Median household income
$56,250
Typical home value
$112,500ACS median value
Median rent
—gross, per month
Median age
60.1
Homeowners
95.8%of occupied homes
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Shaded: ZIP code 57051's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 57051 details

CityOldham
StateSouth Dakota
CountyKingsbury County (also partly Miner County, Lake County)
Metro areaNot in a metro or micro area
Time zoneCentral Time (UTC−6), observes daylight saving time
TypeStandard (delivery area)
Land area78.8 sq mi
Population density2 people per sq mi
Bachelor's degree or higher26.4% of adults 25+
Average commute27.7 minutes
Center coordinates44.21742, -97.35069

ZIP codes near 57051

ZIP codeCityDistancePopulation
57054Ramona, SD8.3 mi703
57249Lake Preston, SD11.5 mi1,023
57212Arlington, SD15.3 mi1,819
57061Sinai, SD15.3 mi215
57231De Smet, SD15.8 mi1,724
57050Nunda, SD16.9 mi176
57076Winfred, SD17.0 mi325
57349Howard, SD17.3 mi1,513

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

Buying a home in 57051?

A typical home in ZIP code 57051 is worth about $112,500 (ACS median value). The median household here earns $56,250 a year. See what buying here would cost per month, with South Dakota average taxes and insurance filled in.

Monthly payment for a $112,500 homeWhat can a $56,250 income afford?Rental property numbers

About ZIP code 57051

What city is ZIP code 57051?

ZIP code 57051 is in Oldham, SD, in Kingsbury County.

What county is ZIP code 57051 in?

57051 is mainly in Kingsbury County, South Dakota, and partly in Miner County and Lake County.

What is the population of ZIP code 57051?

About 163 people live in ZIP code 57051, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 57051 in?

57051 is in Central Time (UTC−6). It observes daylight saving time.