Seneca Flag

Seneca

County:
Faulk County
County Seat:
No
Area (mi²):
0.419
State:
South Dakota

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.

23
Total Population
55
Density (mi²)
0 0%
Growth

Seneca Population

Seneca Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Seneca includes 100% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race, Two or more races and multiracial populations.

Population by Race

White

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Two or more races

Race
Population
Percentage (of total)
White26100%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%
Two or more races00%

Seneca Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

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%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Families$53,125$49,850
Households$40,750$34,753
Married Families--
Non Families-$26,518

$19,688

Average Income

$40,750

Median Household Income

19.23%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)