Eureka, South Dakota
Eureka is a city in McPherson County, South Dakota, with an estimated population of 773 in 2023. It sits at 45.7712, -99.6207 in the America/Chicago time zone.
| Field | Value |
|---|---|
| Place name | Eureka |
| Type | city |
| State | South Dakota (SD) |
| County | McPherson County |
| Population (2023 est.) | 773 |
| Land area | 0.93 sq mi (2.42 km²) |
| Coordinates | 45.7712, -99.6207 |
| Time zone | America/Chicago |
| ZIP codes | 57437 |
ZIP codes and area codes for Eureka
Eureka covers 1 ZIP code: 57437. Browse all ZIP codes in South Dakota for the full list.
Where is Eureka?
Eureka is located in South Dakota, in McPherson County. The coordinates above can be pasted directly into any map service. The nearest indexed places are listed below, which is a useful check when two states share a place name.
Nearby places
Ashley 35 km · NDBowdle 36 km · SDHerreid 36 km · SDRoscoe 42 km · SDSelby 44 km · SDLeola 53 km · SDWishek 54 km · NDStrasburg 58 km · ND
Other places in McPherson County
Frequently asked questions
What county is Eureka, SD in?
Eureka is in McPherson County, South Dakota.
What is the population of Eureka, SD?
The 2023 Census Bureau estimate is 773.
What time zone is Eureka in?
Eureka is in the America/Chicago time zone.