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ZIP Code 57239, South Dakota

ZIP Code 57239 profile, demographic data, and geographic information.

ZCTA5 57239 is a 5-digit ZIP Code area located in Day County, South Dakota. As of official census estimates, it has a reported population of 358. The land area covers 44.83 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 358 ±121 2020-2024 / Census ACS 5-Year 2024
Median Age 63.2 yrs ±5.7 2020-2024 / Census ACS 5-Year 2024
Total Households 186 ±57 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 475 ±60
Occupied Housing Units 186 ±57
Vacant Housing Units 289 ±45
Median Home Value $377,300 ±$179,648
Median Gross Rent Suppressed —
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $106,389 ±$32,999
Per Capita Income $58,270 ±$8,801
Poverty Rate 5.3% ±3.8%
Population Below Poverty Level 19 ±15
Unemployment Rate 0% ±5.2%
Civilian Labor Force, Employed 194 ±81
Broadband Internet Rate 82.8% ±13%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF
Government Unit Unit Type Jurisdiction Role Contact / Address
COUNTY OF DAY
GUS Population: 5,408 (2024)
ID: 174987
County Official County Government
Contact: CHAIRMAN
711 W 1ST ST, WEBSTER SD 57274-1364

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby KG-08 Waubay, SD
Regular School Nearby 09-12 Sisseton, SD
Regular School Nearby 05-08 Sisseton, SD
Regular School Nearby PK-08 Summit, SD
Regular School Nearby 09-12 Summit, SD
Regular School Nearby KG-12 Agency Village, SD
Regular School Nearby PK-06 Waubay, SD
Regular School Nearby 09-12 Waubay, SD
Regular School Nearby 07-08 Waubay, SD
Regular School Nearby PK-05 Webster, SD
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 7 civic institutions across 2 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
Sisseton Wahpeton College
College 12.7 mi away 12572 BIA Rd 700, Sisseton, SD, 57262
60569839661100
WAUBAY PUBLIC LIBRARY
Library 12.5 mi away 94 NORTH MAIN ST, WAUBAY, SD, 57273
(605) 947-4748
SISSETON WAHPETON COMMUNITY COLLEGE LIBRARY
Library 12.9 mi away BIA ROAD 700, SISSETON, SD, 57262
(605) 698-3966
WEBSTER PUBLIC LIBRARY
Library 15.9 mi away 800 MAIN STREET, WEBSTER, SD, 57274
(605) 345-3263
SISSETON MEMORIAL LIBRARY
Library 16.7 mi away 305 E MAPLE ST, SISSETON, SD, 57262
(605) 698-7391
WILMOT PUBLIC LIBRARY
Library 23.1 mi away 602 MAIN STREET, WILMOT, SD, 57279
(605) 938-5698
BROWNS VALLEY PUBLIC LIBRARY
Library 24.0 mi away 15 3RD STREET S, BROWNS VALLEY, MN, 56219
(320) 695-2318
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at WAUBAY NATL WILD LIFE, SD US, located 6.0 miles from ZCTA5 57239. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 21.7° 3.5° 12.6° 0.60" 6.6"
February 26.4° 7.0° 16.7° 0.54" 6.0"
March 38.7° 19.2° 29.0° 0.84" 5.5"
April 54.0° 32.8° 43.4° 1.96" 5.0"
May 67.6° 46.6° 57.1° 2.93" 0.0"
June 76.8° 57.6° 67.2° 3.69" 0.0"
July 81.7° 62.2° 72.0° 3.79" 0.0"
August 80.5° 60.8° 70.6° 2.26" 0.0"
September 72.6° 52.0° 62.3° 2.39" 0.0"
October 57.0° 38.4° 47.7° 2.17" 1.2"
November 39.9° 23.9° 31.9° 0.69" 5.0"
December 26.5° 10.5° 18.5° 0.66" 6.3"
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery
Community Name Classification Distance Population
Grenville town Town 4.8 mi —
Enemy Swim CDP CDP 5.8 mi —
Roslyn town Town 8.8 mi —
Eden town Town 9.0 mi —
Waubay city City 12.2 mi —
Clear Lake CDP CDP 12.4 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 57239. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.