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ZIP Code 57241, South Dakota

ZIP Code 57241 profile, demographic data, and geographic information.

ZCTA5 57241 is a 5-digit ZIP Code area located in Hamlin County, South Dakota. As of official census estimates, it has a reported population of 936. The land area covers 102.59 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 936 ±206 2020-2024 / Census ACS 5-Year 2024
Median Age 36.2 yrs ±9.9 2020-2024 / Census ACS 5-Year 2024
Total Households 384 ±72 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 471 ±82
Occupied Housing Units 384 ±72
Vacant Housing Units 87 ±67
Median Home Value $123,000 ±$26,284
Median Gross Rent $761 ±$26
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $85,833 ±$13,232
Per Capita Income $51,442 ±$15,509
Poverty Rate 3.1% ±1.9%
Population Below Poverty Level 29 ±19
Unemployment Rate 0% ±1.8%
Civilian Labor Force, Employed 552 ±130
Broadband Internet Rate 89.6% ±2.1%
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 HAMLIN
GUS Population: 6,596 (2024)
ID: 112963
County Official County Government
Contact: HAMLIN CO AUDITOR
PO BOX 237, HAYTI SD 57241-0237

Education

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

Community Facilities & Infrastructure

Displaying 5 civic institutions across 2 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
Lake Area Technical College
College 15.4 mi away 1201 Arrow Ave, Watertown, SD, 57201-0730
6058825284
HAMLIN-CODINGTON REGIONAL LIBRARY
Library 14.4 mi away 3 8TH AVE. SE, WATERTOWN, SD, 57201
(605) 753-1011
HAMLIN-CODINGTON REGIONAL LIBRARY-BOOKMOBILE
Library 14.4 mi away 3 8TH AVE SE, WATERTOWN, SD, 57201
(605) 753-1011
WATERTOWN REGIONAL LIBRARY
Library 15.3 mi away 160 6TH ST NE, WATERTOWN, SD, 57201
(605) 882-6220
DOROTHEE PIKE MEMORIAL LIBRARY
Library 24.3 mi away 225 N MAIN AVE, LAKE PRESTON, SD, 57249
(605) 847-4843
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 CASTLEWOOD #2, SD US, located 9.5 miles from ZCTA5 57241. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 21.5° 2.5° 12.0° 0.52" —
February 26.2° 5.9° 16.1° 0.58" —
March 38.7° 17.8° 28.3° 1.12" —
April 54.1° 29.6° 41.9° 2.13" —
May 67.3° 43.6° 55.5° 3.18" —
June 77.5° 54.2° 65.9° 3.97" —
July 82.5° 58.5° 70.5° 3.49" —
August 80.5° 56.1° 68.3° 3.08" —
September 72.4° 47.3° 59.9° 2.69" —
October 57.8° 33.7° 45.8° 2.28" —
November 41.0° 20.7° 30.9° 0.76" —
December 26.9° 8.7° 17.8° 0.53" —
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
Hayti town Town 2.6 mi —
Lake Norden city City 8.1 mi —
Hazel town Town 9.2 mi —
Castlewood city City 9.3 mi —
Lake Poinsett CDP CDP 10.0 mi —
Claremont Colony CDP CDP 13.1 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 57241. • 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.