Welcome to Walnut ...
The city of Walnut is located in Los Angeles County<1>.
While we don't have a date for the founding of Walnut, you might consider that their post office opened in 1908.
The city was incorporated January 19, 1959.
From the Census Estimates for 2019, Walnut has a population of 29,623 people<2> (see below for details).
Walnut is 690 feet [210 m] above sea level.<3>.
Time Zone: Walnut lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time
Walnut lies within the (909) area code.
The ZIP codes for Walnut: 91788-91789, 91795<4>
Websites for Walnut ...
Official Website: www.ci.walnut.ca.us/
Population Details ...
Taken from the 2019 Census Estimates, Walnut had an population of 29,623 people. This is an increase of 1.55% since the 2010 Census (or a decrease of 1.27% since the 2000 Census).
At the time of the 2010 Census, Walnut had a population of 29,172 people. This makes Walnut the county's 57th most populous community.
The population of Walnut represents 0.08% of the total population of California (which has 37,253,956 people), making it the state's 238th most populous community.
With a 2010 count of 29,172 people, the population of Walnut decreased 2.77% from the 2000 Census (with a count of 30,004 people).
More information can be found on the Census Page for Walnut.
Communities Also Named Walnut ...
Using our Gazetteer, we found that there are 25 communities that are also named Walnut - they are located in Arizona, Arkansas, Georgia, Illinois (2), Indiana, Iowa, Kansas (2), Maryland, Michigan, Mississippi (2), Missouri, Nebraska, North Carolina, Ohio (2), Oklahoma, Ontario, Pennsylvania (2), Texas and West Virginia (2).
For more information, see our Tidbits & Trivia Page for Walnut.
Communities near Walnut ...
We have created a list of 10 communities that are near Walnut.
- Anaheim
(13 miles [20.9 km] to the south)- Jump to our Gazetteer entry for Anaheim
- Anaheim is located in Orange County
- Population from the 2020 Census: 353,676 people
- Jump to TripAdvisor's Tourism page for Anaheim <5>
- Santa Ana
(18 miles [29 km] to the south)- Jump to our Gazetteer entry for Santa Ana
- Santa Ana is located in Orange County
- Population from the 2020 Census: 331,301 people
- Jump to TripAdvisor's Tourism page for Santa Ana <5>
- Ontario
(12 miles [19.3 km] to the east)- Jump to our Gazetteer entry for Ontario
- Ontario is located in San Bernardino County
- Population from the 2020 Census: 183,393 people
- Jump to TripAdvisor's Tourism page for Ontario <5>
- Rancho Cucamonga
(17 miles [27.4 km] to the east)- Jump to our Gazetteer entry for Rancho Cucamonga
- Rancho Cucamonga is located in San Bernardino County
- Population from the 2020 Census: 178,849 people
- Jump to TripAdvisor's Tourism page for Rancho Cucamonga <5>
- Garden Grove
(17 miles [27.4 km] to the south)- Jump to our Gazetteer entry for Garden Grove
- Garden Grove is located in Orange County
- Population from the 2020 Census: 171,366 people
- Jump to TripAdvisor's Tourism page for Garden Grove <5>
- Corona
(19 miles [30.6 km] to the southeast)- Jump to our Gazetteer entry for Corona
- Corona is located in Riverside County
- Population from the 2020 Census: 170,996 people
- Jump to TripAdvisor's Tourism page for Corona <5>
- Pomona
(7 miles [11.3 km] to the east)- Jump to our Gazetteer entry for Pomona
- Pomona is located in Los Angeles County
- Population from the 2020 Census: 149,212 people
- Jump to TripAdvisor's Tourism page for Pomona <5>
- Pasadena
(17 miles [27.4 km] to the northwest)- Jump to our Gazetteer entry for Pasadena
- Pasadena is located in Los Angeles County
- Population from the 2020 Census: 141,045 people
- Jump to TripAdvisor's Tourism page for Pasadena <5>
- Fullerton
(10 miles [16.1 km] to the south)- Jump to our Gazetteer entry for Fullerton
- Fullerton is located in Orange County
- Population from the 2020 Census: 139,921 people
- Jump to TripAdvisor's Tourism page for Fullerton <5>
- Orange
(16 miles [25.7 km] to the south)- Jump to our Gazetteer entry for Orange
- Orange is located in Orange County
- Population from the 2020 Census: 138,192 people
- Jump to TripAdvisor's Tourism page for Orange <5>
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 Walnut. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Walnut.
Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Walnut. 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 Walnut.
We also have a detailed list of newspapers that have been published in the area around Walnut. See our Newspapers Page for Walnut.
TripAdvisor Tourism Pages for Walnut ...
Looking for more information about Walnut? 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 Walnut, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Walnut.
Adding Walnut to Our Gazetteer ...
We originally found mention of Walnut 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 Walnut was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>
From that list, the Walnut post office opened in 1908.
We also found Walnut mentioned on a train schedule titled Union Pacific Railroad Time Tables (September 1924).
For more details, see References and Mentions for Walnut.
Off-the-Road Links ...
The official website for Walnut: www.ci.walnut.ca.us/
The official website for Los Angeles County: www.lacounty.info/
The official website for State of California: https://www.ca.gov/
Footnotes ...
| <1> | If you're interested in how the shape of California's counties, including Los Angeles, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <2> | Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Walnut. |
| <3> | The elevation is an estimate for the area around Walnut - it will be higher in some places and lower in others. |
| <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 city (such as Walnut). When looking for a ZIP Code, whether Walnut or elsewhere, it's always best to check the website of the United States Postal Service (USPS). Our list of ZIP Codes for Walnut includes: 91788 & 91789. |
| <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 their list with background information can be found at: https://cblevins.github.io/us-post-offices/data-biography/ |