Seneca is a town located in Faulk County, South Dakota. Seneca has a 2025 population of 23. Seneca is currently declining at a rate of 0% annually and its population has increased by 4.55% since the most recent census, which recorded a population of 22 in 2020.
The average household income in Seneca is $34,753 with a poverty rate of 19.23%.The median age in Seneca is 62.8 years: 62.8 years for males, and 64.5 years for females.
Data after 2023 is projected based on recent change
The racial composition of Seneca includes 100% White, and smaller percentages for and multiracial populations.
Race | Population | Percentage (of total) |
---|---|---|
White | 26 | 100% |
Married
Widowed
Divorced
Separated
Never Married
Seneca's average per capita income is $19,688. Household income levels show a median of $40,750. The poverty rate stands at 19.23%.
Name | Median | Mean |
---|---|---|
Families | $53,125 | $49,850 |
Households | $40,750 | $34,753 |
Married Families | - | - |
Non Families | - | $26,518 |
Average Income
Median Household Income
Poverty Rate