Welcome to Sumac ...

Sumac is located in Bollinger County<1>.

While we don't have a date for the founding of Sumac, you might consider that their post office opened in 1867.

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

Area Codes for Sumac: 573 & 235<2>

Communities Also Named Sumac ...

Using our Gazetteer, we found that there are 3 communities that are also named Sumac - they are located in California, Georgia and Tennessee.

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

Adding Sumac to Our Gazetteer ...

We originally found mention of Sumac in the GNIS. For more information, see the Referenced GNIS Codes section on our Miscellaneous Page.

From our notes, the earliest published mention we've found for Sumac was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<3>

From that list, the Sumac post office opened in 1867.

We also found Sumac in the book titled List of Post Offices in the United States (1870).

For more details, see References and Mentions for Sumac.

Footnotes ...

<1>	If you're interested in how the shape of Missouri's counties, including Bollinger, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>	When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 573 code has been Overlayed with the 235 area code. New phone numbers in the Sumac area will be assigned with one of these codes: 573 or 235. As a result, placing a call in the Sumac area will require 10-digit dialing (where you enter both the area code and then the phone number).
<3>	A copy of their list with background information can be found at: https://cblevins.github.io/us-post-offices/data-biography/