Do you know of San Marcos ???

This page is an orphan - a placeholder until we can discover more about San Marcos. When we encounter a name that is new to us, we add it to our Gazetteer with the hope that we'll discover more information in the future. Such is the case with San Marcos.<1>

We found mention of San Marcos as a post office (see Mentions and References below), but can't determine its location - other than being located somewhere in San Luis Obispo County, California.

It's common that the post office is named the same as the community in which it's located (although that's not always case). In this case, we can't match this post office to any of the existing communities in our gazetteer.<2>

From the Blevins / Hellbock List: The post office opened in 1864 and closed in 1881.

Communities Also Named San Marcos ...

We found four communities that share the name San Marcos.

There are two communities within California that are also named San Marcos.

Beyond California, we know of another two communities that are located throughout in the United States.

Communities Located In California ...
- San Diego County
  - Please visit our profile page for the California community of San Marcos [San Diego County].
- Santa Barbara County
  - Please visit our profile page for the California community of San Marcos [Santa Barbara County].

Communities Elsewhere In North America ...
- Florida
  - Wakulla County
  - Please visit our profile page for the Florida community of San Marcos [Wakulla County].
- Texas
  - Hays County
  - Please visit our profile page for the Texas community of San Marcos [Hays County].

Miscellaneous References and Mentions for San Marcos ...

We've created the following list to keep track of the sources that proved useful in adding to our knowledge about San Marcos:

Found in a comprehensive list of Post Offices that was created by Cameron Blevins and Richard Helbock.<3>

List of Post Offices in the United States (1870)
Published by the Government Printing Office

More Orphans in San Luis Obispo County ...

Can you help?

As we explained above, when we encounter a name that might be a community or a post office we add it to our Gazetteer. If we have little information to go with the name, we call them Orphans. Below are Orphans that we believe to be located in San Luis Obispo County.

Footnotes ...

<1>	This entry could have originated in error. It might be that a source had a misprint, was simply wrong or we made a transcription error while referencing it. Many of the documents we reference are from the 1800s and the early 1900s, with some easier to read than others.
<2>	Part of the difficulty in identifying whether a name is a post office or a community lies with how Post Offices were named. We've prepared an article with our understanding of how post offices were named: Naming of Post Offices.
<3>	A copy of their list with background information can be found at: https://cblevins.github.io/us-post-offices/data-biography/