St. Thomas Aquinas is pleased to announce the 2023 IB DP Results:
1. 40 out of 48 students received the diploma.
2. The average points awarded to a candidate was 33.
3. The average grade obtained by candidates who passed the diploma was 5.16.
4. The highest diploma points awarded was 43, and Sofia Silva obtained this score.
5. 1 student scored 43 , 3 students scored 42, 1 student scored 41, 1 student scored 40, 2 students scored 39, and 2 students scored 38.
6. 30 students scored 30 points or above.
7. 5 students received an A in TOK, and 23 students received a B.
8. 3 students received an A in EE, and 7 students received a B.
As a whole the school did very well in comparison to worldwide results. Please see the table below itemizing subject results (school average vs. worldwide average):
| Subject Group | 2023 Avg Grade School | 2023 Avg Grade Worldwide | 2022 Avg Grade School | 2022 Avg Grade Worldwide |
| English A Lang & Lit HL | 5.25 | 4.79 | 5.53 | 5.02 |
| French B SL | 6.00 | 5.02 | 5.48 | 5.12 |
| Italian ab SL | 4.39 | 4.95 | – | – |
| History Europe HL | – | – | 5.22 | 4.99 |
| Business Management HL | 5.6 | 4.94 | – | – |
| Economics SL | 4.62 | 4.75 | – | – |
| Biology HL | 4.97 | 4.39 | 5.22 | 4.72 |
| Biology SL | 5.25 | 4.15 | 5.89 | 4.56 |
| Chemistry HL | 3.40 | 4.56 | 4.36 | 4.98 |
| Chemistry SL | 4.48 | 4.10 | 4.94 | 4.54 |
| Physics SL | 4.38 | 4.21 | 5.29 | 4.64 |
| Mathematics SL | 5.21 | 4.61 | 5.19 | 4.99 |