ZIP Code 57473
About Seneca
Seneca is a town in Faulk County, South Dakota, United States. The population was 22 at the 2020 census.
From Wikipedia — text licensed CC BY-SA 4.0.
Area Profile
US Census (ACS 5-year · Gazetteer)
275
population
$23,924
median household income
1
people / sq mi
$158,300
median home value
48.5
median age
131
housing units
105
households
185.3
land area (sq mi)