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ZIP Code 57638, South Dakota

ZIP Code 57638 profile, demographic data, and geographic information.

ZCTA5 57638 is a 5-digit ZIP Code area located in Adams County / Corson County / Grant County / Perkins County / Sioux County, South Dakota. As of official census estimates, it has a reported population of 1,852. The land area covers 1,012.37 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 1,852 ±191 2020-2024 / Census ACS 5-Year 2024
Median Age 47.1 yrs ±4.8 2020-2024 / Census ACS 5-Year 2024
Total Households 811 ±89 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 1,096 ±106
Occupied Housing Units 811 ±89
Vacant Housing Units 285 ±71
Median Home Value $101,100 ±$22,511
Median Gross Rent $663 ±$96
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $58,533 ±$10,071
Per Capita Income $31,681 ±$3,043
Poverty Rate 18% ±5.4%
Population Below Poverty Level 326 ±104
Unemployment Rate 8.1% ±4.4%
Civilian Labor Force, Employed 875 ±104
Broadband Internet Rate 85.1% ±2.8%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Education

Listing 3 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby KG-05 Lemmon, SD
Regular School Nearby 09-12 Lemmon, SD
Regular School Nearby 06-08 Lemmon, SD
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 2 civic institutions across 1 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
LEMMON PUBLIC LIBRARY
Library 6.0 mi away 303 1ST AVE W, LEMMON, SD, 57638
(605) 374-5611
ADAMS COUNTY LIBRARY
Library 21.4 mi away 103 N 6TH STREET, HETTINGER, ND, 58639
(701) 567-2741
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 LEMMON, SD US, located 6.0 miles from ZCTA5 57638. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 28.8° 8.9° 18.9° 0.26" 4.5"
February 32.6° 12.0° 22.3° 0.48" 7.6"
March 45.0° 21.2° 33.1° 0.79" 7.5"
April 57.7° 31.7° 44.7° 1.71" 4.8"
May 69.1° 42.9° 56.0° 2.84" 0.7"
June 78.7° 52.8° 65.7° 3.03" 0.0"
July 86.7° 58.6° 72.6° 2.75" 0.0"
August 86.0° 56.6° 71.3° 2.11" 0.0"
September 76.8° 47.3° 62.0° 1.48" 0.0"
October 59.8° 34.6° 47.2° 1.54" 3.1"
November 43.5° 21.9° 32.7° 0.60" 5.2"
December 31.9° 12.3° 22.1° 0.41" 8.9"
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
Lemmon city City 5.9 mi —
Haynes city City 13.5 mi —
Hettinger city City 21.4 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 57638. • 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.