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ZIP Code 57321, South Dakota

ZIP Code 57321 profile, demographic data, and geographic information.

ZCTA5 57321 is a 5-digit ZIP Code area located in Hanson County / McCook County / Miner County, South Dakota. As of official census estimates, it has a reported population of 390. The land area covers 108.94 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 390 ±122 2020-2024 / Census ACS 5-Year 2024
Median Age 39.5 yrs ±18.6 2020-2024 / Census ACS 5-Year 2024
Total Households 113 ±32 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 162 ±42
Occupied Housing Units 113 ±32
Vacant Housing Units 49 ±32
Median Home Value $119,200 ±$78,419
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 $93,125 ±$35,468
Per Capita Income $38,034 ±$12,304
Poverty Rate 8.1% ±8%
Population Below Poverty Level 30 ±31
Unemployment Rate 0% ±6.4%
Civilian Labor Force, Employed 157 ±50
Broadband Internet Rate 92% ±5.1%
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 HANSON
GUS Population: 3,477 (2024)
ID: 174991
County Official County Government
Contact: AUDITOR
PO BOX 500, ALEXANDRIA SD 57311-0500

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby KG-08 Salem, SD
Regular School Nearby KG-08 Winfred, SD
Regular School Nearby PK-05 Alexandria, SD
Regular School Nearby 09-12 Alexandria, SD
Regular School Nearby 06-08 Alexandria, SD
Regular School Nearby PK-05 Howard, SD
Regular School Nearby 09-12 Howard, SD
Regular School Nearby 06-08 Howard, SD
Regular School Nearby PK-05 Salem, SD
Regular School Nearby 09-12 Salem, SD
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 3 civic institutions across 2 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
Dakota State University
College 23.4 mi away 820 N Washington Ave, Madison, SD, 57042-1799
6052565111
HOWARD PUBLIC LIBRARY
Library 9.7 mi away 101 E FARMER AVE, HOWARD, SD, 57349
(605) 772-4761
MADISON PUBLIC LIBRARY
Library 23.2 mi away 209 E CENTER, MADISON, SD, 57042
(605) 256-7525
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 HOWARD, SD US, located 9.8 miles from ZCTA5 57321. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 29.1° 4.6° 16.8° 0.63" 5.8"
February 34.1° 9.0° 21.5° 0.67" 6.4"
March 46.8° 20.8° 33.8° 1.37" 6.6"
April 61.0° 31.8° 46.4° 2.68" 5.2"
May 72.5° 44.8° 58.7° 3.88" 0.0"
June 82.3° 55.8° 69.1° 3.70" 0.0"
July 87.3° 60.2° 73.7° 3.51" 0.0"
August 84.9° 57.6° 71.3° 2.89" 0.0"
September 77.4° 48.4° 62.9° 2.96" 0.0"
October 62.6° 35.1° 48.8° 2.35" 1.0"
November 46.9° 21.3° 34.1° 1.02" 3.2"
December 33.1° 10.2° 21.6° 0.69" 7.6"
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
Canova town Town 2.0 mi —
Shannon Colony CDP CDP 9.6 mi —
Howard city City 9.8 mi —
Vilas town Town 9.9 mi —
Spencer city City 10.2 mi —
Roswell CDP CDP 12.2 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 57321. • 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.