| Recreation & Fitness Expo | 11/18/2017 10:00 AM - 1:00 PM | |
| Recycled Art Workshop | 06/13/2018 3:00 PM - 5:00 PM | |
| Recycling & Organics Recycling Webinar for the Workplace | 09/30/2020 11:00 AM - 12:00 PM | |
| Red Not Chili Peppers – Corona Fire Safety Foundation Fundraiser | 09/07/2019 7:00 PM - 9:00 PM | |
| Red Ribbon Family Fun Festival | 10/27/2019 12:00 PM - 4:00 PM | |
| Red Ribbon Family Fun Festival | 10/28/2018 12:00 PM - 4:00 PM | |
| Red Ribbon Family Fun Festival | 10/29/2017 12:00 PM - 4:00 PM | |
| Re-dedication of Citrus Park Splash Pad | 06/07/2018 11:00 AM - 1:00 PM | |
| Redistricting Community Workshop 2022 | 01/27/2022 6:00 PM - 7:00 PM | |
| Relay for Life | - | |
| Relay for Life | - | |
| Relay for Life (Co-Sponsored Event) | - | |
| Relay for Life (Co-Sponsored Event) | - | |
| Relay For Life (Co-Sponsored Event) | 05/18/2024 | |
| Remember 9/11 • Moment of Silence | 09/11/2018 8:00 AM - 8:15 AM | |
| Remember the Holocaust – Kristallnacht Commemoration at the Corona Public Library | 11/09/2023 7:00 PM - 8:00 PM | |
| Remember the Holocaust – Kristallnacht Commemoration at the Corona Public Library | 11/10/2022 7:00 PM - 8:00 PM | |
| Remember the Holocaust – Kristallnacht Commemoration at the Historic Civic Center Theater | 11/13/2019 6:30 PM - 8:00 PM | |
| Remember the Holocaust – Kristallnacht Commemoration at the Historic Civic Center Theatre | 11/08/2018 6:30 PM - 8:00 PM | |
| Remembering 9/11 | 09/11/2021 7:00 AM - 9:30 AM | |
