| Spruce Ridge Public Elementary School | Complete | State of Good Repair C03 | CW | $2.2M |
| Sprucedale Public Elementary School | Complete | State of Good Repair C03 | CW | $671K |
| SPS UPGRADES | Wastewater Program | Legislated C02 | CW | — |
| SPS UPGRADES - GROUP 8 | Wastewater Program | State of Good Repair C03 | CW | $681 |
| Square One (City Centre) Stop - HML | Under construction | — | — | — |
| St Catharines Asset Management Project | Approved | — | — | $19K |
| St Clair - Integrated Asset Managment Project | Approved | — | — | $6K |
| St Gregory Catholic Elementary School | Under construction | Growth Related C05 | CW | $21.2M |
| St Theresa of Lisieux Catholic Secondary School | Planning | State of Good Repair C03 | CW | $370K |
| St. Albert of Jerusalem Catholic Elementary School | Complete | Growth Related C05 | CW | $2.0M |
| St. Aloysius Catholic Elementary School | Complete | Growth Related C05 | CW | $3.2M |
| St. Aloysius Catholic Elementary School Addition | Planning | Growth Related C05 | CW | $7.4M |
| St. Alphonsa Catholic Elementary School | Complete | Growth Related C05 | CW | $5.7M |
| St. Andrews Catholic Elementary School | Complete | Growth Related C05 | CW | $583K |
| St. Angela Merici Catholic Elementary School | Complete | Growth Related C05 | CW | $9.4M |
| St. Anne Catholic Elementary School | Under construction | Growth Related C05 | CW | $10.0M |
| St. Anne's Catholic Elementary School | Complete | Growth Related C05 | CW | — |
| St. Anthony Catholic Elementary School | Complete | Growth Related C05 | CW | $42K |
| St. Augustine Catholic Elementary School | Complete | Service Improvement and Enhancement C04 | CW | $1.3M |
| St. Basil's Catholic Elementary School | Under construction | Growth Related C05 | CW | $2.1M |
| St. Benedict Catholic Elementary School | Complete | Growth Related C05 | CW | $9.9M |
| St. Bernadette Catholic Elementary School | Complete | Growth Related C05 | CW | $300K |
| St. Bernard's Catholic Elementary School | Complete | Growth Related C05 | CW | $3.1M |
| St. Brigid Catholic Elementary School | Complete | Growth Related C05 | CW | $8.5M |
| St. Catharines Regional Child Care | Complete | — | — | $1.3M |
| St. Charles Catholic Elementary School | Complete | Growth Related C05 | CW | $11.5M |
| St. Charles College Catholic Secondary School | Complete | State of Good Repair C03 | CW | $3.3M |
| St. Clair River Trail Project | Approved | — | — | $76K |
| St. Cornelius Catholic Elementary School | Complete | Growth Related C05 | CW | $3.7M |
| St. Daniel Comboni Catholic Elementary School | Complete | Growth Related C05 | CW | $11.5M |
| St. David Catholic Elementary School | Complete | Growth Related C05 | CW | $8.7M |
| St. Dominic Catholic Elementary School | Complete | Growth Related C05 | CW | $9.9M |
| St. Edith Stein Catholic Elementary School | Complete | Growth Related C05 | CW | $1.0M |
| St. Edmunds Public Elementary School | Complete | Service Improvement and Enhancement C04 | CW | $680K |
| St. Elizabeth Seton Catholic Elementary School | Complete | Growth Related C05 | CW | $252K |
| St. Evan Catholic Elementary School | Complete | Growth Related C05 | CW | $11.4M |
| St. Finnan's Catholic Elementary School | Complete | Growth Related C05 | CW | $0 |
| St. Francis Assisi Catholic Elementary School | Complete | Service Improvement and Enhancement C04 | CW | $8.6M |
| St. Francis Catholic Continued Education | Complete | Service Improvement and Enhancement C04 | CW | $4.0M |
| St. Francis Catholic Elementary School | Complete | Growth Related C05 | CW | $2.4M |
| St. Francis de Sales Catholic Elementary School | Complete | Growth Related C05 | CW | $14.5M |
| St. Francis Xavier Catholic Elementary School | Complete | Growth Related C05 | CW | $781K |
| St. Francis Xavier Catholic Secondary School | Complete | State of Good Repair C03 | CW | $7.8M |
| St. Gabriel Catholic Elementary School | Complete | Growth Related C05 | CW | $2.7M |
| St. Gregory Catholic Elementary School Addition | Planning | Growth Related C05 | CW | $3.3M |
| St. Gregory Catholic School | Under construction | — | — | $4.6M |
| St. Gregory the Great Catholic Elementary School | Complete | Growth Related C05 | CW | $15.0M |
| St. Hilary Catholic Elementary School | Complete | Growth Related C05 | CW | $1.6M |
| St. Isabel Catholic Elementary School | Complete | Growth Related C05 | CW | $10.7M |
| St. Jacinta Marto Catholic Elementary School | Complete | Growth Related C05 | CW | $12.2M |