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A Gazetteer for the United States and Canada
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Welcome to O'Brien ...

O'Brien is located in Josephine County<1>.

While we don't have a date for the founding of O'Brien, you might get a feel for it by knowing that the earliest mention that we've found (so far) was on a map dated 1949.

O'Brien is 1,410 feet [430 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: 541 & 458<3>

The ZIP code for O'Brien: 97534<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 California, Florida, Georgia, Kansas, Michigan (2), Minnesota, Newfoundland and Labrador, Ontario (3), 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.

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 on a map titled Map of Oregon (from Mobile Oil, 1949).

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

Footnotes ...

<1>If you're interested in how the shape of Oregon's counties, including Josephine, 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 541 code has been Overlayed with the 458 area code. New phone numbers in the O'Brien area will be assigned with one of these codes: 541 or 458. 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.