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The Commemorative
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The Commemorative Quarter for Maryland







Welcome to Antietam ...

Antietam is located in Washington County<1>.

While we don't have a date for the founding of Antietam, you might consider that their post office opened  in 1889.

Antietam is 300 feet [91 m] above sea level.<2>.

Time Zone: Antietam lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time

Area Codes for Antietam: 301, 227 & 240<3>

Communities Also Named Antietam ...

Using our Gazetteer, we found that there are 2 communities that are also named Antietam - they are located in Kansas and Ohio.

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

Communities near Antietam ...

We have created a list of 10 communities that are near Antietam.

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 Antietam. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Antietam.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Antietam. 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 Antietam.

We also have a detailed list of newspapers that have been published in the area around Antietam. See our Newspapers Page for Antietam.

TripAdvisor Tourism Pages for Antietam ...

Looking for more information about Antietam? 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.

While we are unaware of a Tourism page that is specific to Antietam, there are neighboring communities that do have Tourism pages. A map of those communities can be found with our TripAdvisor Page for Antietam.

Adding Antietam to Our Gazetteer ...

We originally found mention of Antietam 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 Antietam was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>

X2X - From that list, the Antietam post office opened in 1889.

We also found Antietam in the book titled Business Atlas and Shippers' Guide (1895).

For more details, see References and Mentions for Antietam.

Unfortunately, we don't know of a website for Antietam. If you can help, please contact us through our Feedback Page.

The official website for Washington County: www.washco-md.net/

The official website for State of Maryland: https://www.maryland.gov/

Footnotes ...

<1>If you're interested in how the shape of Maryland's counties, including Washington, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The elevation is an estimate for the area around Antietam - it will be higher in some places and lower in others.
<3>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 301 code has been Overlayed with one of the following codes: 227 or 240. New phone numbers in the Antietam area will be assigned with one of these codes: 301, 227 or 240. As a result, placing a call in the Antietam area will require 10-digit dialing (where you enter both the area code and then the phone number).
<4>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<5>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.
<6>A copy of their list with background information can be found at:

      https://cblevins.github.io/us-post-offices/data-biography/









 

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This page was last modified/updated: 18 Apr 2025