Welcome to O'Brien ...

O'Brien was established in 1945.

The origin (or the toponymy) of O'Brien: Named after Con O'Brien.

O'Brien is 1,230 feet [375 m] above sea level.<2>.

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

Area Codes for O'Brien: 530 & 837<3>

The ZIP code for O'Brien: 96070<4>

Communities Also Named O'Brien ...

Using our Gazetteer, we found that there are 14 communities that are also named O'Brien - they are located in Florida, Georgia, Kansas, Michigan (2), Minnesota, Newfoundland and Labrador, Ontario (3), Oregon, Texas, Washington and West Virginia.

For more information, see our Tidbits & Trivia Page for O'Brien.

Communities near O'Brien ...

We have created a list of 10 communities that are near O'Brien.

Redding
(15 miles [24.1 km] to the south)
- Redding is located in Shasta County
- Jump to our Gazetteer entry for Redding
- Population from the 2020 Census: 92,456 people
- Jump to TripAdvisor's Tourism page for Redding <5>
- Google driving directions:
- From your current location to Redding
- From O'Brien to Redding
Shasta Lake
(9 miles [14.5 km] to the south)
- Shasta Lake is located in Shasta County
- Jump to our Gazetteer entry for Shasta Lake
- Population from the 2020 Census: 10,379 people
- Former names for Shasta Lake:
- Boomtown
- Central Valley
- Jump to TripAdvisor's Tourism page for Shasta Lake <5>
- Google driving directions:
- From your current location to Shasta Lake
- From O'Brien to Shasta Lake
Bayha
(5 miles [8 km] to the south)
- Bayha is located in Shasta County
- Jump to our Gazetteer entry for Bayha
- Google driving directions:
- From your current location to Bayha
- From O'Brien to Bayha
Bonita ‑ Historic
(5 miles [8 km] to the southwest)
- Bonita is located in Shasta County
- Jump to our Gazetteer entry for Bonita
- Google driving directions:
- From your current location to Bonita
- From O'Brien to Bonita
Heroult ‑ Historic
(5 miles [8 km] to the southeast)
- Heroult is located in Shasta County
- Jump to our Gazetteer entry for Heroult
- Google driving directions:
- From your current location to Heroult
- From O'Brien to Heroult
McColl ‑ Historic
(5 miles [8 km] to the south)
- McColl is located in Shasta County
- Jump to our Gazetteer entry for McColl
- Google driving directions:
- From your current location to McColl
- From O'Brien to McColl
Sugarloaf
(5 miles [8 km] to the northwest)
- Sugarloaf is located in Shasta County
- Jump to our Gazetteer entry for Sugarloaf
- Google driving directions:
- From your current location to Sugarloaf
- From O'Brien to Sugarloaf
Ydaloom ‑ Historic
(5 miles [8 km] to the east)
- Ydaloom is located in Shasta County
- Jump to our Gazetteer entry for Ydaloom
- Google driving directions:
- From your current location to Ydaloom
- From O'Brien to Ydaloom
Antlers
(6 miles [9.7 km] to the northwest)
- Antlers is located in Shasta County
- Jump to our Gazetteer entry for Antlers
- Google driving directions:
- From your current location to Antlers
- From O'Brien to Antlers
Copper City ‑ Historic
(6 miles [9.7 km] to the east)
- Copper City is located in Shasta County
- Jump to our Gazetteer entry for Copper City
- Google driving directions:
- From your current location to Copper City
- From O'Brien to Copper City

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

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

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

TripAdvisor Tourism Pages for O'Brien ...

Looking for more information about O'Brien? 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 O'Brien, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for O'Brien.

Adding O'Brien to Our Gazetteer ...

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

From that list, the O'Brien post office opened in 1945. The O'Brien post office closed in 1966.

For more details, see References and Mentions for O'Brien.

Footnotes ...

<1>	If you're interested in how the shape of California's counties, including Shasta, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>	The elevation is an estimate for the area around O'Brien - 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 530 code has been Overlayed with the 837 area code. New phone numbers in the O'Brien area will be assigned with one of these codes: 530 or 837. As a result, placing a call in the O'Brien 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 O'Brien). When looking for a ZIP Code, whether O'Brien 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/