Santa Mateo County sheriff's deputies collected almost 500 guns for destruction at a gun buyback event on May 5, the sheriff's office reported.
Daly City police took 48 guns off city streets Saturday in a buyback program.
More than 200 weapons were collected during a gun buyback event in San Jose on Saturday, a spokesman for a Santa Clara County supervisor said.
Gun owners in Contra Costa County can exchange their weapons for gift cards in a countywide buyback program Saturday.
Buyback participants will get $100 for a gun and $200 for an assault weapon, no questions asked.