Welcome to Glenn ...

While we don't have a date for the founding of Glenn, you might consider that their post office opened in 1884.

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

Area Codes for Glenn: 573 & 235<2>

Communities Also Named Glenn ...

Using our Gazetteer, we found that there are two Missouri communities named Glenn: This one is located in Phelps County and the other is located in Ripley County.

Beyond Missouri, there are 18 communities that are also named Glenn - they are located in California, Georgia, Illinois (2), Indiana, Kansas, Kentucky, Manitoba, Michigan, Nevada, Ohio, Oklahoma, Ontario, Pennsylvania, South Carolina, Texas and Utah.

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

Adding Glenn to Our Gazetteer ...

We originally found mention of Glenn 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 Glenn was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<3>

From that list, the Glenn post office opened in 1884.

For more details, see References and Mentions for Glenn.

Footnotes ...

<1>	If you're interested in how the shape of Missouri's counties, including Phelps, 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 Glenn area will be assigned with one of these codes: 573 or 235. As a result, placing a call in the Glenn 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/