Deuel County's 2026 population is estimated at 4,315, reflecting a -0.23% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Deuel County is the 38th largest county in South Dakota. The 2010 population was 4,350 and has grown -0.8% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.8 years
Female: 43.1 years
Male: 41.4 years
There are 3,280 adults, (956 of whom are seniors) in Deuel County.
Female: 2,094 (48.4%)
Male: 2,234 (51.6%)
The racial composition of Deuel County includes 94.69% White, and smaller percentages for other race, Black or African American, Native American, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 4,098 | 94.69% |
| Two or more races | 166 | 3.84% |
| Other race | 25 | 0.58% |
| Black or African American | 22 | 0.51% |
| Native American | 13 | 0.3% |
| Asian | 4 | 0.09% |
Deuel County 's average per capita income is $47,780. Household income levels show a median of $83,112. The poverty rate stands at 8.76%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $103,500 | - |
| Families | $95,972 | $113,902 |
| Households | $83,112 | $93,064 |
| Non Families | $38,705 | $49,936 |
Average Income
Median Household Income
Poverty Rate