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ZIP code 57256: Ortley, SD

57256 is a ZIP code in Ortley, South Dakota, mainly in Grant County. About 238 people live here.

Population
238
Median household income
$66,500
Typical home value
$225,000ACS median value
Median rent
—gross, per month
Median age
46.3
Homeowners
86.4%of occupied homes
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Shaded: ZIP code 57256's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 57256 details

CityOrtley
StateSouth Dakota
CountyGrant County (also partly Roberts County, Day County, Codington County)
Metro areaNot in a metro or micro area
Time zoneCentral Time (UTC−6), observes daylight saving time
TypeStandard (delivery area)
Land area44.4 sq mi, plus 0.4 sq mi of water
Population density5 people per sq mi
Bachelor's degree or higher13.8% of adults 25+
Average commute23 minutes
Center coordinates45.24996, -97.19698

ZIP codes near 57256

ZIP codeCityDistancePopulation
57266Summit, SD5.8 mi626
57273Waubay, SD6.9 mi1,165
57263South Shore, SD11.9 mi351
57251Marvin, SD12.9 mi228
57235Florence, SD13.7 mi774
57272Wallace, SD17.1 mi201
57274Webster, SD17.9 mi2,621
57257Peever, SD18.9 mi637

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 57256?

A typical home in ZIP code 57256 is worth about $225,000 (ACS median value). The median household here earns $66,500 a year. See what buying here would cost per month, with South Dakota average taxes and insurance filled in.

Monthly payment for a $225,000 homeWhat can a $66,500 income afford?Rental property numbers

About ZIP code 57256

What city is ZIP code 57256?

ZIP code 57256 is in Ortley, SD, in Grant County.

What county is ZIP code 57256 in?

57256 is mainly in Grant County, South Dakota, and partly in Roberts County, Day County and Codington County.

What is the population of ZIP code 57256?

About 238 people live in ZIP code 57256, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 57256 in?

57256 is in Central Time (UTC−6). It observes daylight saving time.