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Codington County, South Dakota

Codington County profile, demographic data, and geographic information.

Codington County is a county located in South Dakota, United States of America. As of official census estimates, it has a reported population of 29,562. The land area covers 687.59 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Codington County
Official Title: County Auditor
Address: 14 1ST AVE SE, WATERTOWN SD 57201-3611

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 29,562 — 2025 / Census
Median Age 40.4 yrs ±1.1 2020-2024 / Census ACS 5-Year 2024
Total Households 12,526 ±269 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 13,533 ±63
Occupied Housing Units 12,526 ±269
Vacant Housing Units 1,007 ±264
Median Home Value $237,700 ±$15,323
Median Gross Rent $938 ±$46
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $72,727 ±$4,778
Per Capita Income $39,825 ±$2,586
Poverty Rate 8.8% ±1.3%
Population Below Poverty Level 2,504 ±382
Unemployment Rate 1.9% ±0.9%
Civilian Labor Force, Employed 15,409 ±496
Broadband Internet Rate 87.6% ±2.5%
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 RAUVILLE 2 W, SD US, located 2.5 miles from Codington County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 21.4° 1.5° 11.5° 0.65" 5.7"
February 26.2° 5.1° 15.7° 0.69" 6.5"
March 38.3° 18.2° 28.3° 1.10" 4.8"
April 54.0° 30.8° 42.4° 2.27" 4.0"
May 67.1° 44.8° 56.0° 2.70" 0.0"
June 76.4° 54.9° 65.7° 3.18" 0.0"
July 81.7° 59.8° 70.8° 3.59" 0.0"
August 79.9° 56.3° 68.1° 2.66" 0.0"
September 72.1° 46.2° 59.2° 2.74" 0.0"
October 57.3° 34.2° 45.8° 2.33" 1.1"
November 40.9° 20.8° 30.9° 0.83" 2.1"
December 27.1° 9.1° 18.1° 0.70" 7.6"
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: 46029. • 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.