Welcome to Eureka ...

When the people of Eureka refer to themselves (known as a demonym), they frequently use Eurekan<2>

Time Zone: Eureka lies in the Central Time Zone (CST/CDT) and observes daylight saving time

Area Code for Eureka: 660

Communities Also Named Eureka ...

While we believe that this Eureka is located in Putnam County, we know of another 3 Missouri communities named Eureka. Those communities are located in the following counties: Boone, Perry and Saint Louis County.

Beyond Missouri, 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, Montana (2), Nebraska, Nevada (2), New York, North Carolina, Nova Scotia, Nunavut, Ohio (2), Oklahoma, Ontario, Pennsylvania (2), South Carolina (2), South Dakota, Tennessee (4), Texas (5), Utah, Virginia, Washington (2), West Virginia and Wisconsin.

For more information, see our Tidbits & Trivia Page for Eureka.

Footnotes ...

<1>

If you're interested in how the shape of Missouri's counties, including Putnam, 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 community'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.