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Stanley County, South Dakota

Stanley County profile, demographic data, and geographic information.

Stanley County is a county located in South Dakota, United States of America. As of official census estimates, it has a reported population of 3,018. The land area covers 1,444.44 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Stanley County
Official Title: Auditor
Address: PO BOX 595, FORT PIERRE SD 57532-0595

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 3,018 — 2025 / Census
Median Age 44.5 yrs ±4.3 2020-2024 / Census ACS 5-Year 2024
Total Households 1,290 ±100 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 1,542 ±90
Occupied Housing Units 1,290 ±100
Vacant Housing Units 252 ±103
Median Home Value $203,500 ±$67,875
Median Gross Rent $952 ±$132
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $87,712 ±$25,802
Per Capita Income $43,482 ±$4,214
Poverty Rate 5.1% ±3.9%
Population Below Poverty Level 153 ±117
Unemployment Rate 0.5% ±0.8%
Civilian Labor Force, Employed 1,642 ±128
Broadband Internet Rate 90.9% ±3.6%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at FT PIERRE 17 WSW, SD US, located 12.5 miles from Stanley County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 31.7° 7.7° 19.7° 0.41" 6.1"
February 36.4° 12.2° 24.3° 0.57" 5.5"
March 48.9° 23.0° 35.9° 0.85" 3.9"
April 60.9° 33.3° 47.1° 1.89" 4.5"
May 71.4° 45.0° 58.2° 2.93" 0.1"
June 81.5° 55.6° 68.6° 2.83" 0.0"
July 89.5° 61.6° 75.6° 2.43" 0.0"
August 88.0° 59.0° 73.5° 2.20" 0.0"
September 79.1° 48.6° 63.9° 1.50" 0.0"
October 62.4° 35.0° 48.7° 1.67" 1.0"
November 46.8° 20.9° 33.8° 0.53" 4.2"
December 34.2° 11.3° 22.8° 0.45" 6.0"
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 46117. • 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.