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A Gazetteer for the United States and Canada
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Welcome to Castleton ...

Castleton is located in Harford County<1>.

While we don't have a date for the founding of Castleton, you might consider that their post office opened in 1872.

Castleton is 250 feet [76 m] above sea level.<2>.

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

Area Codes for Castleton: 410, 443 & 667<3>

Communities Also Named Castleton ...

Using our Gazetteer, we found that there are 11 communities that are also named Castleton - they are located in Colorado, Illinois (2), Indiana, Kansas, New York, Ontario, South Dakota, Utah, Vermont and Virginia.

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

Communities near Castleton ...

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

  • Aberdeen
    (11 miles [17.7 km] to the south)
  • Havre de Grace
    (11 miles [17.7 km] to the southeast)
  • Bel Air
    (11 miles [17.7 km] to the southwest)
    • Bel Air is located in Harford County
    • Jump to our Gazetteer entry for Bel Air
    • Population from the 2020 Census: 10,266 people
    • Former names for Bel Air:
    • Belle Air
    • Belle Aire
    • Jump to TripAdvisor's Tourism page for Bel Air <4>
  • Oxford
    (14 miles [22.5 km] to the northeast)
    • Oxford is located in Chester County (PA)
    • Jump to our Gazetteer entry for Oxford
    • Population from the 2020 Census: 5,594 people
    • Jump to TripAdvisor's Tourism page for Oxford <4>
  • New Freedom
    (13 miles [20.9 km] to the west)
  • Perryville
    (10 miles [16.1 km] to the southeast)
  • North East
    (15 miles [24.1 km] to the east)
  • Rising Sun
    (8 miles [12.9 km] to the east)
  • Quarryville
    (15 miles [24.1 km] to the north)
  • Stewartstown
    (13 miles [20.9 km] to the west)

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

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

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

TripAdvisor Tourism Pages for Castleton ...

Looking for more information about Castleton? 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 Castleton, there are neighboring communities that do have Tourism pages. A map of those communities can be found with our TripAdvisor Page for Castleton.

Adding Castleton to Our Gazetteer ...

We originally found mention of Castleton 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 (so far) for Castleton was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<5>

From that list, the Castleton post office opened in 1872. The Castleton post office closed in 1951.

For more details, see References and Mentions for Castleton.

Footnotes ...

<1>If you're interested in how the shape of Maryland's counties, including Harford, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The elevation is an estimate for the area around Castleton - 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 410 code has been Overlayed with one of the following codes: 443 or 667. New phone numbers in the Castleton area will be assigned with one of these codes: 410, 443 or 667. As a result, placing a call in the Castleton 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>A copy of the Blevins & Helbock Post Office list with background information can be found at:

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