Spring Valley is located in McCook County, South Dakota. Spring Valley has a 2025 population of 384 . Spring Valley is currently declining at a rate of 0% annually and its population has increased by 4.35% since the most recent census, which recorded a population of 368 in 2020.
The average household income in Spring Valley is $127,698 with a poverty rate of 1.08%. The median age in Spring Valley is 45.8 years: 44.3 years for males, and 47.6 years for females. For every 100 females there are 94.7 males.
Data after 2023 is projected based on recent change
The racial composition of Spring Valley includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 370 | 100% |
Married
Widowed
Divorced
Separated
Never Married
Spring Valley's average per capita income is $50,500. Household income levels show a median of $98,750. The poverty rate stands at 1.08%.
Name | Median | Mean |
|---|---|---|
| Married Families | $121,875 | - |
| Families | $104,688 | $135,905 |
| Households | $98,750 | $127,698 |
| Non Families | $97,955 | $112,430 |
Average Income
Median Household Income
Poverty Rate