Its population was , as of the census , up from 99, at the census. The U. Rialto is home to major regional distribution centers : Staples Inc. One of the United States' largest fireworks companies, Pyro Spectaculars , is also headquartered in Rialto. Ancient artifacts discovered by archaeologists suggest that what is now the city of Rialto was settled prior to An adobe building from the early 19th century, which has been used for many purposes over the years, is the oldest building still standing in Rialto and stands restored near Bud Bender Park, formerly known as "Lilac Park" on Second Street and Riverside Avenue.
In , the Lugo family was granted the Rancho San Bernardino βa holding of 37, acresβwhich encompassed Rialto. This claim was later amended by the United States Government , permitting them a smaller fraction of the initial purchase.
This same year the Semitropic Land and Water Company was formed to organize the purchase and selling of real estate, water, and water rights and privileges. In the fall of , the first school was built and Brooke School District was formed. The prominent Rialto Trapp family bought the first school house in , remodeled the building, and members of the family resided in it until it was destroyed by fire.
The staff consisted of two teachers and a principal with separate play areas for the boys and girls. In a cemetery was established in the township.
It is administered by the City Treasurer. The Chamber of Commerce was established in The election results on October 31 of the same year were votes for the incorporation of the city and 72 against. Foothill Boulevard was repaired in and became U.
