Welcome to Black Diamond ...

So far, we found very little information about Black Diamond. The little that we've found leads us believe that the community is historic.<1>

We've added Black Diamond to our Gazetteer with the hope that we can develop more information. We would especially like to find the location of Black Diamond - knowing its coordinates, we can explore things like its relationship to neighboring communities, nearby cemeteries, etc. If you can help us with Black Diamond, please Contact Us.

While we don't have the exact location of Black Diamond , we believe that it would have been located within present day Fairfield County<2>.

Time Zone: The area where Black Diamond was located is in the Eastern Time Zone (EST/EDT) and observes daylight saving time

The Area Codes where Black Diamond was located: 740 & 220<3>

Communities Also Named Black Diamond ...

Using our Gazetteer, we found that there are 9 communities that are also named Black Diamond - they are located in Alabama, Alberta, Arizona, Arkansas, Florida, Indiana, Kentucky, Pennsylvania and Washington.

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

Footnotes ...

<1>	We use the term 'Historic' broadly and it generally means that the community no longer exists. However, it can also mean that the community might still exist, but was significantly larger or had a more 'official' existence in the past than it does now. Unfortunately our sources of data have proven to be unreliable. If you can provide us with more specific information about Black Diamond, please let us know so that we can improve our accuracy.
<2>	If you're interested in how the shape of Ohio's counties, including Fairfield, have changed over time, we recommend the Atlas of Historical County Boundaries.
<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 740 code has been Overlayed with the 220 area code. New phone numbers in the Black Diamond area will be assigned with one of these codes: 740 or 220. As a result, placing a call in the Black Diamond area will require 10-digit dialing (where you enter both the area code and then the phone number).