RoadsideThoughts
A Gazetteer for the United States and Canada
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Welcome to Grossmont ...

Grossmont is located in San Diego County<1>.

While we don't have a date for the founding of Grossmont, you might consider that their post office opened  in 1910.

Grossmont is 670 feet [204 m] above sea level.<2>.

Time Zone: Grossmont lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time

Area Codes for Grossmont: 619 & 858<3>

Communities near Grossmont ...

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

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

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

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

TripAdvisor Tourism Pages for Grossmont ...

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

Adding Grossmont to Our Gazetteer ...

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

From that list, the Grossmont post office opened in 1910.

For more details, see References and Mentions for Grossmont.

Footnotes ...

<1>If you're interested in how the shape of California's counties, including San Diego, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The elevation is an estimate for the area around Grossmont - 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 619 code has been Overlayed with the 858 area code. New phone numbers in the Grossmont area will be assigned with one of these codes: 619 or 858. As a result, placing a call in the Grossmont 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/