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Bennett County, South Dakota

Bennett County profile, demographic data, and geographic information.

Bennett County is a county located in South Dakota, United States of America. As of official census estimates, it has a reported population of 3,307. The land area covers 1,184.64 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Bennett County
Official Title: County Auditor
Address: PO BOX 460, MARTIN SD 57551-0460

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 3,307 — 2025 / Census
Median Age 27.4 yrs ±4.9 2020-2024 / Census ACS 5-Year 2024
Total Households 920 ±92 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 1,151 ±94
Occupied Housing Units 920 ±92
Vacant Housing Units 231 ±40
Median Home Value $156,400 ±$22,228
Median Gross Rent $617 ±$65
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $53,750 ±$17,540
Per Capita Income $18,895 ±$2,784
Poverty Rate 29.9% ±9.5%
Population Below Poverty Level 989 ±315
Unemployment Rate 10% ±7.9%
Civilian Labor Force, Employed 1,062 ±160
Broadband Internet Rate 65.2% ±7.9%
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 MARTIN, SD US, located 3.1 miles from Bennett County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 34.9° 12.7° 23.8° 0.42" 4.7"
February 38.2° 15.1° 26.6° 0.65" 7.8"
March 49.6° 24.0° 36.8° 1.23" 8.8"
April 58.7° 31.9° 45.3° 2.40" 9.0"
May 68.9° 42.4° 55.6° 3.33" 1.8"
June 79.4° 52.6° 66.0° 3.46" 0.0"
July 87.3° 59.2° 73.2° 2.86" 0.0"
August 85.9° 57.2° 71.5° 2.16" 0.0"
September 77.4° 47.9° 62.7° 1.19" 0.1"
October 60.9° 34.6° 47.7° 1.60" 2.4"
November 46.7° 22.7° 34.7° 0.75" 5.7"
December 35.8° 14.8° 25.3° 0.63" 8.1"
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: 46007. • 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.