Downtown Petaluma Posted on September 12, 2023 Location Downtown Petaluma Petaluma CA94952 Next Event American Graffiti Car Show - 05/16/2024 - 05/17/2024 - All Day Map Unavailable Upcoming Events American Graffiti Car Show - 05/16/2024 - 05/17/2024 - All DayHalloween Trick or Treat Trail - 10/31/2024 - 12:00 am