Welcome to Eureka ...
The city of Eureka is located in McPherson County<1>.
While we don't have a date for the founding of Eureka, you might consider that their post office opened in 1887.
When the people of Eureka refer to themselves (known as a demonym), they frequently use Eurekan<2>
From the Census Estimates for 2019, Eureka has a population of 830 people<3> (see below for details).
Eureka is 1,880 feet [573 m] above sea level.<4>.
Time Zone: Eureka lies in the Central Time Zone (CST/CDT) and observes daylight saving time
Note: If you travel west from Eureka (for example, toward Kenel), you will leave Central Time and cross into the Mountain Time Zone (MST/MDT).
Eureka lies within the (605) area code.
The ZIP code for Eureka: 57437<5>
Population Details ...
Taken from the 2019 Census Estimates, Eureka had an population of 830 people. This is a decrease of 4.38% since the 2010 Census (or a decrease of 24.61% since the 2000 Census).
At the time of the 2010 Census, Eureka had a population of 868 people (or 35.3% of the total population of McPherson County). This makes Eureka the county's most populous community.
The population of Eureka represents 0.11% of the population of South Dakota (which has 814,180 people), making it the state's 100th most populous community.
With a 2010 count of 868 people, the population of Eureka decreased 21.16% from the 2000 Census (with a count of 1,101 people).
More information can be found on the Census Page for Eureka.
Communities Also Named Eureka ...
Using our Gazetteer, we found that there are 68 communities that are also named Eureka - they are located in Alabama (2), Alaska (2), California (2), Colorado, Florida (2), Georgia (3), Illinois, Indiana (3), Iowa (3), Kansas (6), Kentucky, Louisiana, Maine, Michigan (2), Minnesota, Mississippi, Missouri (4), Montana (2), Nebraska, Nevada (2), New York, North Carolina, Nova Scotia, Nunavut, Ohio (2), Oklahoma, Ontario, Pennsylvania (2), South Carolina (2), Tennessee (4), Texas (5), Utah, Virginia, Washington (2), West Virginia and Wisconsin.
For more information, see our Tidbits & Trivia Page for Eureka.
Communities near Eureka ...
We have created a list of 10 communities that are near Eureka.
- Madra
(11 miles [17.7 km] to the northwest) - Hosmer
(15 miles [24.1 km] to the southeast)- Jump to our Gazetteer entry for Hosmer
- Hosmer is located in Edmunds County
- Population from the 2020 Census: 185 people
- Jump to TripAdvisor's Tourism page for Hosmer <7>
- Zeeland
(17 miles [27.4 km] to the northwest)- Note: The GPS coordinates that we are using for Zeeland have been provided by the GNIS.<6> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Zeeland
- Zeeland is located in McIntosh County (ND)
- Population from the 2020 Census: 73 people
- Jump to TripAdvisor's Tourism page for Zeeland <7>
- Venturia
(16 miles [25.7 km] to the north)- Note: The GPS coordinates that we are using for Venturia have been provided by the GNIS.<6> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Venturia
- Venturia is located in McIntosh County (ND)
- Population from the 2020 Census: 13 people
- Jump to TripAdvisor's Tourism page for Venturia <7>
- Artas
(12 miles [19.3 km] to the northwest) - Hillsview
(7 miles [11.3 km] to the south) - Long Lake
(20 miles [32.2 km] to the east) - Ashley
(21 miles [33.8 km] to the northeast)- Note: The GPS coordinates that we are using for Ashley have been provided by the GNIS.<6> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Ashley
- Ashley is located in McIntosh County (ND)
- Population from the 2020 Census: 645 people
- Jump to TripAdvisor's Tourism page for Ashley <7>
- Mound City
(21 miles [33.8 km] to the west)- Note: The GPS coordinates that we are using for Mound City have been provided by the GNIS.<6> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Mound City
- Mound City is located in Campbell County
- Population from the 2020 Census: 65 people
- Jump to TripAdvisor's Tourism page for Mound City <7>
- Bowdle
(22 miles [35.4 km] to the south)- Jump to our Gazetteer entry for Bowdle
- Bowdle is located in Edmunds County
- Population from the 2020 Census: 463 people
- Jump to TripAdvisor's Tourism page for Bowdle <7>
To Help With Your Genealogy Research ...
We have a couple of sections for those tracing their genealogy.
We created a list of cemeteries that are in the area around Eureka. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Eureka.
Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Eureka. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Eureka.
We also have a detailed list of newspapers that have been published in the area around Eureka. Our list includes 5 papers. See our Newspapers Page for Eureka.
TripAdvisor Tourism Pages for Eureka ...
Looking for more information about Eureka? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.
In addition to the Tourism page for Eureka, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Eureka.
Adding Eureka to Our Gazetteer ...
We originally found mention of Eureka in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.
From our notes, the earliest published mention we've found for Eureka was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<8>
From that list, the Eureka post office opened in 1887.
We also found Eureka in the book titled Business Atlas and Shippers' Guide (1895).
For more details, see References and Mentions for Eureka.
Off-the-Road Links ...
Unfortunately, we don't know of a website for Eureka. If you can help, please contact us through our Feedback Page.
The official website for State of South Dakota: sd.gov/
Footnotes ...
| <1> | If you're interested in how the shape of South Dakota's counties, including McPherson, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <2> | A demonym is the name for a resident of a community which is usually derived from (or is related to) the name of that community. In other words, it's how the residents of Eureka refer to themselves. It's important to note that there aren't any rules for taking a city's name and turning it into a demonym. A demonym is informal and while the majority of Eureka may use one name, keep in mind that others may use something different. |
| <3> | Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Eureka. |
| <4> | The elevation is an estimate for the area around Eureka - it will be higher in some places and lower in others. |
| <5> | ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Eureka). When looking for a ZIP Code, whether Eureka or elsewhere, it's always best to check the website of the United States Postal Service (USPS). |
| <6> | The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required. |
| <7> | While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program. |
| <8> | A copy of their list with background information can be found at: https://cblevins.github.io/us-post-offices/data-biography/ |