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Eureka township, South Dakota

Eureka township profile, demographic data, and geographic information.

Eureka township is a geographic entity located in Aurora County, South Dakota. As of official census estimates, it has a reported population of 40. The land area covers 34.31 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 40 — 2025 / Census
Median Age 77.7 yrs ±11.4 2020-2024 / Census ACS 5-Year 2024
Total Households 5 ±4 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 5 ±4
Occupied Housing Units 5 ±4
Vacant Housing Units 0 ±10
Median Home Value Suppressed —
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 Suppressed —
Per Capita Income $34,113 ±$3,891
Poverty Rate 0% ±125%
Population Below Poverty Level 0 ±10
Unemployment Rate 0% ±500%
Civilian Labor Force, Employed 2 ±4
Broadband Internet Rate 0% ±200%
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 EUREKA
GUS Population: 39 (2024)
ID: 211857
Township Official Local Government
Contact: CHAIRMAN
25520 376TH AVE, WHITE LAKE SD 57383-5809
COUNTY OF AURORA
GUS Population: 2,752 (2024)
ID: 174981
County Official County Government
Contact: AUDITOR
PO BOX 397, PLANKINTON SD 57368-0397

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Eureka PK-06 Eureka, SD
Regular School Eureka 09-12 Eureka, SD
Regular School Eureka 07-08 Eureka, SD
Alternative School Nearby 09-12 Plankinton, SD
Alternative School Nearby 04-08 Plankinton, SD
Regular School Nearby KG-08 Platte, SD
Regular School Nearby PK-05 Stickney, SD
Special Education School Nearby 09-12 Plankinton, SD
Special Education School Nearby 05-08 Plankinton, SD
Regular School Nearby KG-08 Kimball, SD
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 4 civic institutions across 1 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
WHITE LAKE COMMUNITY LIBRARY
Library 4.0 mi away 111 MAIN ST, WHITE LAKE, SD, 57383
(605) 249-2301
PLANKINTON COMMUNITY LIBRARY
Library 7.7 mi away 404 E DAVENPORT, PLANKINTON, SD, 57368
(605) 942-7600
KIMBALL PUBLIC LIBRARY
Library 16.3 mi away 140 N MAIN SUITE 104, KIMBALL, SD, 57355
(605) 778-6690
PLATTE PUBLIC LIBRARY
Library 25.0 mi away 310 SOUTH MAIN, PLATTE, SD, 57369
(605) 337-9869
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 WHITE LAKE, SD US, located 2.7 miles from Eureka township. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 27.1° 8.2° 17.7° 0.47" 7.1"
February 32.0° 11.7° 21.8° 0.68" 8.4"
March 44.0° 21.7° 32.9° 1.01" 5.2"
April 57.0° 32.9° 44.9° 3.03" 5.4"
May 68.5° 46.0° 57.2° 3.72" 0.0"
June 78.8° 57.1° 67.9° 3.63" 0.0"
July 85.5° 62.3° 73.9° 2.99" 0.0"
August 83.1° 59.5° 71.3° 2.58" 0.0"
September 75.4° 50.2° 62.8° 2.58" 0.0"
October 59.8° 36.1° 47.9° 1.87" 0.8"
November 44.1° 22.7° 33.4° 0.70" 3.7"
December 30.7° 12.6° 21.7° 0.62" 7.1"
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
White Lake city City 3.9 mi —
Plankinton city City 7.6 mi —
Aurora Center CDP CDP 13.2 mi —
Grass Ranch Colony CDP CDP 13.2 mi —
Stickney town Town 13.2 mi —
Cedar Grove Colony CDP CDP 15.3 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 4600320100. • 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.