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Opdahl township, South Dakota

Opdahl township profile, demographic data, and geographic information.

Opdahl township is a geographic entity located in Hamlin County, South Dakota. As of official census estimates, it has a reported population of 223. The land area covers 33.94 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 223 — 2025 / Census
Median Age 46.7 yrs ±29.7 2020-2024 / Census ACS 5-Year 2024
Total Households 53 ±38 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 80 ±45
Occupied Housing Units 53 ±38
Vacant Housing Units 27 ±36
Median Home Value $275,000 ±$128,352
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 $45,938 ±$41,392
Per Capita Income $31,098 ±$8,250
Poverty Rate 0% ±11.9%
Population Below Poverty Level 0 ±10
Unemployment Rate 0% ±15.9%
Civilian Labor Force, Employed 63 ±45
Broadband Internet Rate 100% ±0%
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
TOWNSHIP OF OPDAHL
GUS Population: 210 (2024)
ID: 175341
Township Official Local Government
Contact: CLERK
44547 186TH ST, HAYTI SD 57241-5406
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 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
Regular School Nearby KG-08 Willow Lake, 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
Lake Area Technical College
College 18.8 mi away 1201 Arrow Ave, Watertown, SD, 57201-0730
6058825284
HAMLIN-CODINGTON REGIONAL LIBRARY
Library 17.6 mi away 3 8TH AVE. SE, WATERTOWN, SD, 57201
(605) 753-1011
HAMLIN-CODINGTON REGIONAL LIBRARY-BOOKMOBILE
Library 17.6 mi away 3 8TH AVE SE, WATERTOWN, SD, 57201
(605) 753-1011
WATERTOWN REGIONAL LIBRARY
Library 18.6 mi away 160 6TH ST NE, WATERTOWN, SD, 57201
(605) 882-6220
DOROTHEE PIKE MEMORIAL LIBRARY
Library 22.1 mi away 225 N MAIN AVE, LAKE PRESTON, SD, 57249
(605) 847-4843
HAZEL L. MEYER MEMORIAL LIBRARY
Library 23.2 mi away 102 1ST STREET NE, DE SMET, SD, 57231
(605) 854-3842
EMIL M. LARSON LIBRARY
Library 24.6 mi away 120 N COMMERCIAL, CLARK, SD, 57225
(605) 532-5571
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 14.5 miles from Opdahl township. 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 5.7 mi —
Hazel town Town 6.3 mi —
Lake Norden city City 8.7 mi —
Vienna town Town 9.2 mi —
Bryant city City 9.7 mi —
Naples town Town 11.5 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 4605747300. • 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.