According to the Riverside County Sheriff's Office, deputies responded to the area near the 30000 block of Wellington Circle after receiving reports about a missing child.
When they arrived, they found the toddler in the pool.
"Deputies rendered medical aid until paramedics arrived," read a statement from the sheriff's office. "The toddler was transported to a local hospital where they were later pronounced deceased."
No other information was released.
The incident remains under investigation.