Downtown Petaluma Posted on September 12, 2023 Location Downtown Petaluma Petaluma CA94952 Next Event Petaluma Downtown Merchant Summer Sidewalk Sale - 08/01/2024 - 08/04/2024 - All Day Upcoming Events Petaluma Downtown Merchant Summer Sidewalk Sale - 08/01/2024 - 08/04/2024 - All DayHalloween Trick or Treat Trail - 10/31/2024 - 12:00 am