Riverside is located in Clay County, South Dakota. Riverside has a 2025 population of 123 . Riverside is currently declining at a rate of -1.6% annually but its population has increased by 1.65% since the most recent census, which recorded a population of 121 in 2020.
The average household income in Riverside is $89,088 with a poverty rate of 0%. The median age in Riverside is 34.2 years: 30.4 years for males, and 34.7 years for females. For every 100 females there are 110.7 males.
Data after 2023 is projected based on recent change
The racial composition of Riverside includes 87.01% White, and smaller percentages for and multiracial populations.
White (87.01%)
Two or more races (12.99%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 154 | 87.01% |
| Two or more races | 23 | 12.99% |
Married
Widowed
Divorced
Separated
Never Married
Riverside's average per capita income is $44,306. Household income levels show a median of $91,250. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Married Families | $92,188 | - |
| Households | $91,250 | $89,088 |
| Families | $90,938 | $88,989 |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate