Are there wild pigs near San Jose?

Yes, there are wild pigs near San Jose. Santa Clara County has been managing feral pigs in its parks since 1994.

They get into garbage, tents and ice chests, so keep food and coolers in your car or the food locker. In Joseph D. Grant County Park, visitors report them most often in March through May and July through October, based on 351 iNaturalist observations.

If you meet one, don't approach it. Back away slowly, wave your arms and make noise.