Welcome to Petrolia ...
Petrolia is located in Humboldt County<1>.
While we don't have a date for the founding of Petrolia, you might consider that their post office opened in 1865.
Petrolia is 120 feet [37 m] above sea level.<2>.
Time Zone: Petrolia lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time
Area Codes for Petrolia: 707 & 369<3>
The ZIP code for Petrolia: 95558<4>
Communities Also Named Petrolia ...
Using our Gazetteer, we found that there are 7 communities that are also named Petrolia - they are located in Illinois, Kansas, Montana, New York, Ontario, Pennsylvania and Texas.
For more information, see our Tidbits & Trivia Page for Petrolia.
Communities near Petrolia ...
We have created a list of 10 communities that are near Petrolia.
- Rio Dell
(15 miles [24.1 km] to the northeast)
- Ferndale
(17 miles [27.4 km] to the north)
- Capetown
(10 miles [16.1 km] to the northwest)
- Note: We haven't been able to verify our GPS coordinates for Capetown. Although the coordinates have been estimated, they should be in the vicinity.<6>
- Jump to our Gazetteer entry for Capetown
- Capetown is located in Humboldt County
- Google driving directions:
- From your current location to Capetown
- From Petrolia to Capetown
- Honeydew
(10 miles [16.1 km] to the southeast)
- Scotia
(14 miles [22.5 km] to the northeast)
- Alton
(17 miles [27.4 km] to the northeast)
- Pepperwood
(17 miles [27.4 km] to the northeast)
- Note: We haven't been able to verify our GPS coordinates for Pepperwood. Although the coordinates have been estimated, they should be in the vicinity.<6>
- Jump to our Gazetteer entry for Pepperwood
- Pepperwood is located in Humboldt County
- Google driving directions:
- From your current location to Pepperwood
- From Petrolia to Pepperwood
- Carlotta
(18 miles [29 km] to the northeast)
- Hydesville
(18 miles [29 km] to the northeast)
- Port Kenyon
(18 miles [29 km] to the north)
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 Petrolia. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Petrolia.
Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Petrolia. 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 Petrolia.
We also have a detailed list of newspapers that have been published in the area around Petrolia. See our Newspapers Page for Petrolia.
TripAdvisor Tourism Pages for Petrolia ...
Looking for more information about Petrolia? 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 Petrolia, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Petrolia.
Adding Petrolia to Our Gazetteer ...
We originally found mention of Petrolia 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 Petrolia was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<7>
From that list, the Petrolia post office opened in 1865.
We also found Petrolia in the book titled List of Post Offices in the United States (1870).
For more details, see References and Mentions for Petrolia.
Footnotes ...
| <1> | If you're interested in how the shape of California's counties, including Humboldt, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <2> | The elevation is an estimate for the area around Petrolia - 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 707 code has been Overlayed with the 369 area code. New phone numbers in the Petrolia area will be assigned with one of these codes: 707 or 369. As a result, placing a call in the Petrolia 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 Petrolia). When looking for a ZIP Code, whether Petrolia 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> | An 'estimated' location is one where we have been given GPS coordinates, but are unable to verify the accuracy of those coordinates. That said, we have some confidence that we have placed the marker near the actual location. A typical reason for being unable to verify a location is that it might be on private property or maybe historic and gone without an obvious trace. |
| <7> | A copy of their list with background information can be found at:
https://cblevins.github.io/us-post-offices/data-biography/ |