Welcome to San Dimas ...

The city of San Dimas is located in Los Angeles County<1>.

While we don't have a date for the founding of San Dimas, you might consider that their post office opened  in 1888.

The city was incorporated August 4, 1960.

From the  Census Estimates for 2019, San Dimas has a population of 33,534 people<2> (see below for details).

San Dimas is 960 feet [293 m] above sea level.<3>.

Time Zone: San Dimas lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time

The area code for San Dimas: (909)

The ZIP code for San Dimas: 91773<4>

Websites for San Dimas ...

Official Website: www.cityofsandimas.com/

Population Details ...

Taken from the 2019 Census Estimates, San Dimas had an population of 33,534 people. This is an increase of 0.49% since the 2010 Census (or a decrease of 4.13% since the 2000 Census).

At the time of the 2010 Census, San Dimas had a population of 33,371 people. This makes San Dimas the county's 54th most populous community.

The population of San Dimas represents 0.09% of the population of California (which has 37,253,956 people), making it the state's 221st most populous community.

With a 2010 count of 33,371 people, the population of San Dimas decreased 4.6% from the 2000 Census (with a count of 34,980 people).

More information can be found on the Census Page for San Dimas.

Communities near San Dimas ...

We have created a list of 10 communities that are near San Dimas.

• Anaheim
  (19 miles [30.6 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>
• Ontario
  (9 miles [14.5 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
  (13 miles [20.9 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>
• Pasadena
  (19 miles [30.6 km] to the west)
  • 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
  (17 miles [27.4 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>
• El Monte
  (12 miles [19.3 km] to the west)
  • Jump to our Gazetteer entry for El Monte
  • El Monte is located in Los Angeles County
  • Population from the 2020 Census: 112,344 people
  • Jump to TripAdvisor's Tourism page for El Monte <5>
• West Covina
  (7 miles [11.3 km] to the west)
  • Jump to our Gazetteer entry for West Covina
  • West Covina is located in Los Angeles County
  • Population from the 2020 Census: 103,656 people
  • Jump to TripAdvisor's Tourism page for West Covina <5>
• Chino
  (9 miles [14.5 km] to the southeast)
  • Jump to our Gazetteer entry for Chino
  • Chino is located in San Bernardino County
  • Population from the 2020 Census: 92,290 people
  • Jump to TripAdvisor's Tourism page for Chino <5>
• Alhambra
  (18 miles [29 km] to the west)
  • Jump to our Gazetteer entry for Alhambra
  • Alhambra is located in Los Angeles County
  • Population from the 2020 Census: 83,261 people
  • Jump to TripAdvisor's Tourism page for Alhambra <5>
• Whittier
  (15 miles [24.1 km] to the southwest)
  • Jump to our Gazetteer entry for Whittier
  • Whittier is located in Los Angeles County
  • Population from the 2020 Census: 83,194 people
  • Jump to TripAdvisor's Tourism page for Whittier <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 San Dimas. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for San Dimas.

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

We also have a detailed list of newspapers that have been published in the area around San Dimas. Our list includes 7 papers. See our Newspapers Page for San Dimas.

TripAdvisor Tourism Pages for San Dimas ...

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

Adding San Dimas to Our Gazetteer ...

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

From that list, the San Dimas post office opened in 1888.

We also found San Dimas in the book titled Business Atlas and Shippers' Guide (1895).

For more details, see References and Mentions for San Dimas.

Off-the-Road Links ...

The official website for San Dimas: www.cityofsandimas.com/

The official website for Los Angeles County: www.lacounty.info/

The official website for State of California: https://www.ca.gov/