Planning to apply to Chong Zheng Primary School for the 2026 Primary 1 intake? Our comprehensive analysis of 2022-2024 admission data across all phases (Phase 1, 2A, 2B, 2C and Phase 3) reveals key trends to help you strategize your application to this popular school.
Balloting Priority Codes
| Code | Definition |
|---|---|
| SC<1 | Singapore Citizens living <1km |
| SC1-2 | Singapore Citizens living 1-2km |
| SC>2 | Singapore Citizens living >2km |
| PR<1 | Permanent Residents living <1km |
| PR1-2 | Permanent Residents living 1-2km |
| PR>2 | Permanent Residents living >2km |
| # | Special cases (context-dependent) |
Admission Odds (2022–2024 Data)
Applicant-to-Vacancy Ratios
How competitive is your phase?
- Example: 100 applicants for 50 spots → 100 ÷ 50 = 2.0:1 (balloting likely).
- Low ratio (e.g., 0.5:1): No balloting (fewer applicants than spots).
Applicant-to-Vacancy Ratios for All Phases
| Phase | 2022 Ratio | 2023 Ratio | 2024 Ratio | Balloting History |
|---|---|---|---|---|
| Phase 1 | 0.74:1 | 0.51:1 | 0.51:1 | Never balloted |
| 2A(1) | 1.22:1 | 0.68:1 | 0.51:1 | SC>2 (2022) |
| 2B | 0.35:1 | 0.27:1 | 0.15:1 | Never balloted |
| 2C | 1.61:1 | 1.17:1 | 1.27:1 | SC<1 (2022), SC1-2 (2023-2024) |
| Phase 3 | 0:1 | 0:1 | 0:1 | No vacancies since 2022 |
Phase-by-Phase Analysis
Phase 1 (Children of Alumni)
- Safest phase with ratios consistently below 0.75:1
- Vacancies increased from 120 (2022) to 160 (2024)
- Never required balloting in past 3 years
2A Phases
- 2A(1):
- Significant improvement from 1.22:1 (2022) to 0.51:1 (2024)
- Only balloted for SC>2 in 2022
- Vacancies doubled from 32 to 80
- 2A(2):
- No data available
- Typically less competitive than 2A(1)
2B (Community/Parent Volunteers)
- Most improved phase (0.35:1 → 0.15:1)
- Vacancies grew from 20 to 33
- Never balloted in past 3 years
- Best chance for SC<1 applicants
2C (Public Ballot)
- Most competitive public phase
- Balloting history:
- 2022: SC<1
- 2023-24: SC1-2
- Vacancies increased from 54 to 96
Phase 3 (PR/International)
- No vacancies since 2022
- Unlikely to change in 2025
Strategic Application Guide
By Priority Group
SC<1 Applicants:
- ✅ All phases: Excellent chances
- Best odds in 2B (0.15:1 in 2024)
- Phase 1 and 2A(1) are guaranteed
SC1-2 Applicants:
- ✅ Phase 1/2A(1): Safe
- ⚠️ 2C: Balloted in 2023-24 (prepare alternatives)
- ❌ 2B: Not available
SC>2 Applicants:
- ✅ Phase 1: Guaranteed
- 🎲 2A(1): Only balloted in 2022
- ❌ 2B/2C: Not available
PR Applicants:
- ❌ No vacancies in Phase 3 since 2022
2025 Predictions & Pro Tips
- Best Phase Choices:
- SC<1: 2B → Phase 1 → 2A(1)
- SC1-2: Phase 1 → 2A(1) → 2C (with backup)
- Key Trends:
- School expansion created more vacancies
- 2B emerging as hidden gem with 0.15:1 ratio
- 2C remains competitive but improving
- Warning Signs:
- Phase 3 likely remains closed
- 2C may continue balloting SC1-2 applicants
- Action Plan:
- SC<1: Apply for 2B first
- SC1-2: Secure Phase 1 or 2A(1) slot
- All applicants: Monitor official vacancy announcements
Final Advice: Chong Zheng’s expansion makes 2025 potentially the best year to apply in recent history. Capitalize on the increased vacancies, especially in 2B, while maintaining realistic expectations for 2C.