Jury Pool Profile
Sully County, South Dakota
- County seat
- Onida
- Judicial district
- 6th Judicial Circuit Court
- Population (July 2025 estimate)
- 1,479
- Census PEP. The five-year ACS survey average is 1,526.
At a glance
Sully County is a 1,479-person venue. The county population is 87% White (Census race-alone categories). Median household income is $80,411, $2,917 above the SD state median of $77,494; 24.1% of residents 25 and over hold a bachelor's degree or higher. 5.7% of residents 5 and older speak a language other than English at home, most commonly German or other West Germanic and Spanish. The largest employment sector is Natural resources & mining, at 27.5% of covered employment, average pay $67,246/year. Trailing-12-month unemployment is 1.52%, below the 2.15% state average. The county carried the Republican presidential candidate in 2016, 2020, and 2024, taking 78% to 80% of the vote across the three.
- Population
- 1,526
- Median household income
- $72,578
- Unemployment
- 1.5%
Who sits on a jury?
≥70% White (race-alone) and <20% Black. This county: 87% / 5%.
Sully County has a population of 1,526, with a median age of 46.9. By Census race-alone categories, White residents make up 86.5%; Black residents 4.5%.
The median household earns $80,411; 24.1% of residents 25 and over hold a bachelor's degree or higher; 8.0% live below the federal poverty line.
Economic context
BLS QCEW 'Natural resources & mining' (oil & gas) is ≥5% of total covered employment. This county: 27.5%.
Natural resources & mining is the largest employment sector at 27.5% of covered employment, followed by Trade, transportation & utilities at 26.2%. Trailing-12-month unemployment is 1.52%, below the South Dakota state average.
Political composition
Republican candidate carried this county in 2016, 2020, and 2024 (avg winning share: 79%). 'Strongly' threshold: ≥60% avg.
Sully County was carried by the Republican candidate in the 2016, 2020, and 2024 cycles, with 79.5% in 2024, 78.1% in 2020, 78.9% in 2016.
Languages, households, faith & health
Family households are 57% of all households (thresholds: ≥70% = 'family-dominant'; 50–70% = 'family-majority'; <50% = 'singles/nonfamily-majority'). 5.7% of residents 5 and older speak a language other than English at home (threshold for 'linguistically diverse' is ≥10%).
5.7% of residents 5 years and older speak a language other than English at home. The most common are German or other West Germanic, Spanish. Veterans account for 3.4% of the adult civilian population (40 individuals).