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

Olney is located in Montgomery County<1>.

While we don't have a date for the founding of Olney, you might consider that their post office opened in 1851.

Olney is 540 feet [165 m] above sea level.<2>.

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

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

The ZIP codes for Olney: 20830, 20832<4>

Communities Also Named Olney ...

Using our Gazetteer, we found that there are 17 communities that are also named Olney - they are located in Alabama, California, Colorado, Georgia, Illinois, Kansas, Kentucky, Michigan, Mississippi, Missouri, Montana, Ohio, Oklahoma, Oregon, Pennsylvania, Texas and Washington.

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

Communities near Olney ...

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

  • Arlington
    (18 miles [29 km] to the south)
    • Arlington is located in Arlington County (VA)
    • Jump to our Gazetteer entry for Arlington
    • Population from the 2010 Census: 207,627 people
    • Jump to TripAdvisor's Tourism page for Arlington <5>
  • Rockville
    (6 miles [9.7 km] to the southwest)
  • Gaithersburg
    (7 miles [11.3 km] to the west)
  • College Park
    (13 miles [20.9 km] to the southeast)
  • Laurel
    (12 miles [19.3 km] to the east)
    • Laurel is located in Prince George's County
    • Jump to our Gazetteer entry for Laurel
    • Population from the 2020 Census: 25,548 people
    • Jump to TripAdvisor's Tourism page for Laurel <5>
  • Greenbelt
    (14 miles [22.5 km] to the southeast)
    • Greenbelt is located in Prince George's County
    • Jump to our Gazetteer entry for Greenbelt
    • Population from the 2020 Census: 23,229 people
    • Jump to TripAdvisor's Tourism page for Greenbelt <5>
  • Hyattsville
    (14 miles [22.5 km] to the southeast)
  • Takoma Park
    (12 miles [19.3 km] to the south)
  • Falls Church
    (19 miles [30.6 km] to the south)
  • New Carrollton
    (16 miles [25.7 km] to the southeast)

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

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

TripAdvisor Tourism Pages for Olney ...

Looking for more information about Olney? 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.

In addition to the Tourism page for Olney, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Olney.

Adding Olney to Our Gazetteer ...

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

From that list, the Olney post office opened in 1851.

For more details, see References and Mentions for Olney.

Footnotes ...

<1>If you're interested in how the shape of Maryland's counties, including Montgomery, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The elevation is an estimate for the area around Olney - 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 Olney area will be assigned with one of these codes: 301, 227 or 240. As a result, placing a call in the Olney area will require 10-digit dialing (where you enter both the area code and then the phone number).
<4>ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a community (such as Olney). When looking for a ZIP Code, whether Olney or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<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 the Blevins & Helbock Post Office list with background information can be found at:

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