Sanborn County's 2026 population is estimated at 2,362, reflecting a -0.63% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Sanborn County is the 54th largest county in South Dakota. The 2010 population was 2,354 and has grown 0.34% since 2010.
Data after 2023 is projected based on recent change
Overall: 40.1 years
Female: 40.5 years
Male: 39.6 years
There are 1,766 adults, (482 of whom are seniors) in Sanborn County.
Female: 1,123 (47.1%)
Male: 1,261 (52.9%)
The racial composition of Sanborn County includes 92.87% White, and smaller percentages for Native American, other race and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 2,214 | 92.87% |
| Two or more races | 91 | 3.82% |
| Native American | 56 | 2.35% |
| Other race | 23 | 0.96% |
Sanborn County 's average per capita income is $44,750. Household income levels show a median of $78,750. The poverty rate stands at 8.54%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $94,053 | - |
| Families | $92,868 | $108,583 |
| Households | $78,750 | $89,850 |
| Non Families | $42,750 | $56,711 |
Average Income
Median Household Income
Poverty Rate