ZIP Code 57437
About Eureka
Eureka is a city in western McPherson County, South Dakota, United States, near the North Dakota state line. The population was 813 at the 2020 census.
From Wikipedia — text licensed CC BY-SA 4.0.
Area Profile
US Census (ACS 5-year · Gazetteer)
1,278
population
$42,917
median household income
2
people / sq mi
$80,300
median home value
$560
median gross rent
60.4
median age
784
housing units
585
households
532.9
land area (sq mi)