| Signal Butte Road Corridor Improvement Open House | 03/12/2009 5:00 pm - 7:00 pm |
| Silver Sneaker Stretch Yoga | 01/18/2017 8:15 am - 9:15 am |
| Silver Sneakers Cardio Sculpt | 02/06/2017 10:30 am - 11:30 am |
| Silver Sneakers Flex | 02/03/2017 10:30 am - 11:30 am |
| Silver Sneakers Stretch Yoga | 02/01/2017 8:15 am |
| Skate Park Expansion Ribbon Cutting | 10/17/2009 12:30 pm - 1:30 pm |
| Skateboarding Clinic | 12/13/2008 8:00 am - 10:00 am |
| Skywarn Storm Spotter Training | 05/13/2017 10:00 am - 12:00 pm |
| Small Area Transportation Study Open House | 02/07/2018 5:00 pm - 7:00 pm |
| Small Business Technology Tour at the ASU Polytechnic College of Technology and Innovation | 10/12/2012 8:00 am - 3:30 pm |
| Smart Controller Workshop | 01/25/2020 9:00 am - 12:00 pm |
| Smart Controller Workshop | 01/25/2020 |
| S'More Sweet Festival | 01/27/2018 1:00 pm - 6:00 pm |
| Soil Building: Water-Smart Workshop | 09/07/2019 9:00 am - 11:00 am |
| Sonoqui Wash Channelization Phase II Open House | 09/15/2009 6:00 pm - 7:30 pm |
| Sonoqui Wash Channelization Phase II Open House | 05/12/2009 6:00 pm - 7:30 pm |
| Sonoqui Wash Channelization Phase III Open House | 07/29/2010 6:00 pm - 7:30 pm |
| Sonoqui Wash Trail Design Community Meeting | 01/26/2019 8:00 am - 10:00 am |
| Sossa Cattes Roping | 11/20/2016 10:00 am |
| Sossaman Road Drainage Improvements Project Open House | 04/27/2010 5:00 pm - 7:00 pm |