Jury Pool Profile
Marshall County, South Dakota
- County seat
- Britton
- Judicial district
- 5th Judicial Circuit Court
- Population (July 2025 estimate)
- 4,426
- Census PEP. The five-year ACS survey average is 4,344.
At a glance
Marshall County is a 4,426-person venue. The county population is 84% White (Census race-alone categories). Median household income is $74,964, $2,530 below the SD state median of $77,494; 25.4% of residents 25 and over hold a bachelor's degree or higher. 5.9% of residents 5 and older speak a language other than English at home, most commonly Spanish and German or other West Germanic. The largest employment sector is Education & health services, at 19.1% of covered employment, average pay $42,959/year. Trailing-12-month unemployment is 2.32%, above the 2.15% state average. The county carried the Republican presidential candidate in 2016, 2020, and 2024, taking 54% to 61% of the vote across the three.
- Population
- 4,344
- Median household income
- $78,156
- Unemployment
- 2.3%
Who sits on a jury?
≥70% White (race-alone) and <20% Black. This county: 84% / 0%.
Marshall County has a population of 4,344, with a median age of 42.5. By Census race-alone categories, White residents make up 84.5%; Black residents 0.4%. Independently, 6.4% of residents identify as Hispanic or Latino of any race.
The median household earns $74,964; 25.4% of residents 25 and over hold a bachelor's degree or higher; 9.5% live below the federal poverty line.
Economic context
BLS QCEW 'Natural resources & mining' (oil & gas) is ≥5% of total covered employment. This county: 18.3%.
Education & health services is the largest employment sector at 19.1% of covered employment, followed by Trade, transportation & utilities at 18.3%. Trailing-12-month unemployment is 2.32%, above the South Dakota state average.
Political composition
Republican candidate carried this county in 2016, 2020, and 2024 (avg winning share: 58%). 'Strongly' threshold: ≥60% avg.
Marshall County was carried by the Republican candidate in the 2016, 2020, and 2024 cycles, with 61.1% in 2024, 59.1% in 2020, 54.2% in 2016.
Languages, households, faith & health
Family households are 67% of all households (thresholds: ≥70% = 'family-dominant'; 50–70% = 'family-majority'; <50% = 'singles/nonfamily-majority'). 5.9% of residents 5 and older speak a language other than English at home (threshold for 'linguistically diverse' is ≥10%).
5.9% of residents 5 years and older speak a language other than English at home. The most common are Spanish, German or other West Germanic. Veterans account for 9.0% of the adult civilian population (296 individuals).