Someone drove the wounded man to Pomona Valley Hospital Medical Center where physicians determined his wounds were not life-threatening.
The man would not cooperate with investigators and gave detectives little information about the shooting, officials said.
A little more than 24 hours before, a 17-year-old girl was taken to Pomona Valley by a private vehicle with a gunshot wound to the arm.
That wounding apparently took place around 10:30 p.m. Friday and may be related to a reported shooting near Mission Boulevard and San Antonio Avenue. The teen also did not cooperate with investigators, McDonald said.
No arrests have been made in either shooting.
Beginning March 7, four young men were shot and killed in Pomona and at least seven people have been hurt by gun violence. While Pomona police officials say they do not believe a gang war has erupted on city streets, residents see things differently.
"It's a war out there," said Sarah Cotinola, the 19-year-old sister of Chris Cotinola, who was shot and killed March 11 outside his Gordon Street apartment.
"It's not safe. People need to be careful and stay inside. "
Police say none of the fatal shootings are connected but they were not random acts of violence.
Anyone with information on any of the cases is asked to call the Pomona Police Department at 909-620-2095.