Tacos & Tamales: Fiestas Patrias - Oct. 11, 2025 Save the date for Sat., Oct. 11, 2025 for the popular fundraising event in downtown Union City! "Tacos & Tamales: Fiestas Patrias" will be on Oct. 11 in Kiwanis Park. Go ahead and put it on your calendar! More details TBD.