Tripp County's 2026 population is estimated at 5,937, reflecting a 1.89% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Tripp County is the 30th largest county in South Dakota. The 2010 population was 5,647 and has grown 5.14% since 2010.
Data after 2023 is projected based on recent change
Overall: 45 years
Female: 46.9 years
Male: 42.5 years
There are 4,312 adults, (1,380 of whom are seniors) in Tripp County.
Female: 2,736 (48.8%)
Male: 2,875 (51.2%)
The racial composition of Tripp County includes 79.93% White, 13.72% Native American, and smaller percentages for Black or African American, other race, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 4,485 | 79.93% |
| Native American | 770 | 13.72% |
| Two or more races | 257 | 4.58% |
| Black or African American | 44 | 0.78% |
| Other race | 30 | 0.53% |
| Asian | 25 | 0.45% |
Tripp County 's average per capita income is $40,826. Household income levels show a median of $58,987. The poverty rate stands at 18.45%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $85,192 | - |
| Families | $75,431 | $92,367 |
| Households | $58,987 | $79,259 |
| Non Families | $39,000 | $57,765 |
Average Income
Median Household Income
Poverty Rate