Welcome to Rialto ...

The city of Rialto is located in San Bernardino County<1>.

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

The city was incorporated November 17, 1911.

From the  Census Estimates for 2019, Rialto has a population of 103,847 people<2> (see below for details).

Rialto is 1,320 feet [402 m] above sea level.<3>.

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

The telephone area code for Rialto: (909)

The ZIP codes for Rialto: 92376-92377<4>

Websites for Rialto ...

Official Website:   www.ci.rialto.ca.us/

Chamber of Commerce:   www.rialtochamber.org/

Population Details ...

Taken from the 2019 Census Estimates, Rialto had an population of 103,847 people. This is an increase of 4.72% since the 2010 Census (or an increase of 13.03% since the 2000 Census).

At the time of the 2010 Census, Rialto had a population of 99,171 people. This makes Rialto the county's 6th most populous community.

The population of Rialto represents 0.27% of the total population of California (which has 37,253,956 people), making it the state's 69th most populous community.

With a 2010 count of 99,171 people, the population of Rialto increased 7.94% from the 2000 Census (which had a count of 91,873 people).

More information can be found on the Census Page for Rialto.

Communities Also Named Rialto ...

Using our Gazetteer, we found that there are 4 communities that are also named Rialto - they are located in Missouri, North Carolina, Ohio and Tennessee.

For more information, see our Tidbits & Trivia Page for Rialto.

Communities near Rialto ...

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

• Riverside
  (10 miles [16.1 km] to the south)
  • Jump to our Gazetteer entry for Riverside
  • Riverside is located in Riverside County
  • Population from the 2020 Census: 330,786 people
  • Jump to TripAdvisor's Tourism page for Riverside <5>
• Moreno Valley
  (14 miles [22.5 km] to the southeast)
  • Jump to our Gazetteer entry for Moreno Valley
  • Moreno Valley is located in Riverside County
  • Population from the 2020 Census: 212,349 people
  • Jump to TripAdvisor's Tourism page for Moreno Valley <5>
• Ontario
  (16 miles [25.7 km] to the west)
  • 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
  (11 miles [17.7 km] to the west)
  • 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>
• Corona
  (19 miles [30.6 km] to the southwest)
  • 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>
• Jurupa Valley
  (9 miles [14.5 km] to the southwest)
  • Jump to our Gazetteer entry for Jurupa Valley
  • Jurupa Valley is located in Riverside County
  • Population from the 2020 Census: 109,745 people
• Chino
  (19 miles [30.6 km] to the west)
  • 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>
• Upland
  (16 miles [25.7 km] to the west)
  • Jump to our Gazetteer entry for Upland
  • Upland is located in San Bernardino County
  • Population from the 2020 Census: 77,850 people
  • Jump to TripAdvisor's Tourism page for Upland <5>
• Redlands
  (11 miles [17.7 km] to the east)
  • Jump to our Gazetteer entry for Redlands
  • Redlands is located in San Bernardino County
  • Population from the 2020 Census: 72,271 people
  • Jump to TripAdvisor's Tourism page for Redlands <5>
• Eastvale
  (14 miles [22.5 km] to the southwest)
  • Jump to our Gazetteer entry for Eastvale
  • Eastvale is located in Riverside County
  • Jump to TripAdvisor's Tourism page for Eastvale <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 Rialto. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Rialto.

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

We also have a detailed list of newspapers that have been published in the area around Rialto. Our list includes 11 papers. See our Newspapers Page for Rialto.

TripAdvisor Tourism Pages for Rialto ...

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

Adding Rialto to Our Gazetteer ...

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

From that list, the Rialto post office opened in 1888.

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

For more details, see References and Mentions for Rialto.

Off-the-Road Links ...

The official website for Rialto: www.ci.rialto.ca.us/

The official website for San Bernardino County: www.sbcounty.gov/

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