Rialto, a city in San Bernardino County, California, strategically located near the Cajon Pass, Interstate 15, Interstate 10, State Route 210, and Metrolink routes, has evolved into a bustling community of 104,026 residents, according to the 2020 Census. This figure reflects a growth trajectory, driven by the establishment of significant distribution centers in the region.

The city's historical roots run deep, with artifacts discovered by archaeologists suggesting Serrano Indians inhabited the area between 1500 and 1800 AD. The oldest standing building in Rialto, an adobe structure from the early 19th century, offers a tangible connection to the city's past and now stands near Bud Bender Park.

In 1842, the Lugo family was granted the vast Rancho San Bernardino, encompassing Rialto. Railroad connections in 1887, forming townsites along the line, led to the establishment of a Methodist colony named after the Rialto Bridge in Venice, Italy. Over the years, the city witnessed the formation of schools, a cemetery, and the Chamber of Commerce, becoming a hub of activity by 1911.

Foothill Boulevard's repair in 1913 transformed it into U.S. Route 66, and the Pacific Electric Railway further connected Rialto to surrounding areas. However, a fire in the 1920s devastated the downtown area, leaving an indelible mark on the city's landscape.

Rialto played a crucial role during World War II, hosting the U.S. Army Rialto Ammunition Storage point, supporting operations in the Pacific theater. The remnants of this site became a Superfund Site scheduled for remediation in 2020.

In the late 1990s, the city faced water contamination issues due to perchlorate leaking from a site owned by defense contractors and fireworks manufacturers. Legal action ensued, with cleanup costs reaching $100 million by 2014.

Today, Rialto stands as a key player in the distribution industry, housing major centers for companies like Staples Inc., Amazon, Under Armour, and more. It's also home to Pyro Spectaculars, one of the largest fireworks companies in the United States.

Looking ahead, Rialto continues to make headlines as it hosts AmatoCon from March 8-10, 2024, a three-day executive development program featuring top names in business, entertainment, and education. The event promises a unique blend of professional development and fine dining.

The city's demographic landscape showcases diversity, with the largest ancestries being German, Irish, English, Italian, and African. Immigrants from various countries contribute to Rialto's vibrant community, including those from Mexico, El Salvador, Guatemala, the Philippines, Nicaragua, Egypt, Cuba, Colombia, Honduras, and Nigeria.

Rialto's journey, marked by growth, historical resilience, and contemporary challenges, is a testament to its ability to adapt and thrive. As it continues to build on its strengths and address its challenges, Rialto stands as a distinctive and dynamic city in Southern California.