RoadsideThoughts
A Gazetteer for the United States and Canada
Home >> State of Maryland >> Harford County >> Rock RunIndex...










Learn About
The Commemorative
Quarter for
Maryland

The Commemorative Quarter for Maryland





Welcome to Rock Run ...

Rock Run is located in Harford County<1>.

While we don't have a date for the founding of Rock Run, you might consider that their post office opened  in 1827.

Rock Run is near sea level<2>.

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

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

Communities Also Named Rock Run ...

Using our Gazetteer, we found that there are two Maryland communities named Rock Run: This one is located in Harford County and the other is located in Cecil County.

Beyond Maryland, there are 9 communities that are also named Rock Run - they are located in Alabama, Ohio (2), Pennsylvania (3), Virginia and West Virginia.

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

Communities near Rock Run ...

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

  • Aberdeen
    (6 miles [9.7 km] to the south)
    • Note: The GPS coordinates that we are using for Aberdeen have been provided by the GNIS.<4> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Aberdeen
    • Aberdeen is located in Harford County
    • Population from the 2020 Census: 15,964 people
    • Jump to TripAdvisor's Tourism page for Aberdeen <5>
  • Elkton
    (17 miles [27.4 km] to the east)
    • Note: The GPS coordinates that we are using for Elkton have been provided by the GNIS.<4> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Elkton
    • Elkton is located in Cecil County
    • Population from the 2020 Census: 15,665 people
    • Jump to TripAdvisor's Tourism page for Elkton <5>
  • Havre de Grace
    (4 miles [6.4 km] to the southeast)
    • Note: The GPS coordinates that we are using for Havre de Grace have been provided by the GNIS.<4> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Havre de Grace
    • Havre de Grace is located in Harford County
    • Population from the 2020 Census: 14,147 people
    • Jump to TripAdvisor's Tourism page for Havre de Grace <5>
  • Bel Air
    (12 miles [19.3 km] to the southwest)
    • Jump to our Gazetteer entry for Bel Air
    • Bel Air is located in Harford County
    • 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 <5>
  • Oxford
    (15 miles [24.1 km] to the northeast)
    • Note: The GPS coordinates that we are using for Oxford have been provided by the GNIS.<4> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Oxford
    • Oxford is located in Chester County (PA)
    • Population from the 2020 Census: 5,594 people
    • Jump to TripAdvisor's Tourism page for Oxford <5>
  • New Freedom
    (18 miles [29 km] to the northwest)
  • Perryville
    (4 miles [6.4 km] to the southeast)
  • North East
    (10 miles [16.1 km] to the east)
    • Note: The GPS coordinates that we are using for North East have been provided by the GNIS.<4> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for North East
    • North East is located in Cecil County
    • Population from the 2020 Census: 3,609 people
    • Jump to TripAdvisor's Tourism page for North East <5>
  • Rising Sun
    (7 miles [11.3 km] to the northeast)
    • Note: The GPS coordinates that we are using for Rising Sun have been provided by the GNIS.<4> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Rising Sun
    • Rising Sun is located in Cecil County
    • Population from the 2020 Census: 2,784 people
    • Jump to TripAdvisor's Tourism page for Rising Sun <5>
  • Quarryville
    (19 miles [30.6 km] to the north)

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

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

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

TripAdvisor Tourism Pages for Rock Run ...

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

Adding Rock Run to Our Gazetteer ...

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

X2X - From that list, the Rock Run post office opened in 1827.

We also found Rock Run in the book titled U.S. Post Offices (Oct. 1846).

For more details, see References and Mentions for Rock Run.

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

The official website for Harford County: www.co.ha.md.us/

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 Harford, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The elevation is an estimate for the area around Rock Run - 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 Rock Run area will be assigned with one of these codes: 410, 443 or 667. As a result, placing a call in the Rock Run area will require 10-digit dialing (where you enter both the area code and then the phone number).
<4>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.
<5>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<6>A copy of their list with background information can be found at:

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




 

Copyright 2025
All Rights Reserved

Thank you for visiting our website.

In closing, please keep in mind that we can not guarantee the accuracy or timeliness of the information on this website, so use with care. We encourage you to double-check the information that is critical to you.

If you've found an error or have additional information that you would like to share, please don't hesitate to write: Click here to contact us.

This page was last modified/updated: 18 Apr 2025