Jumlah Siswa per Kelas di SMP Negeri 1 Pekalongan
| No | Kelas | Jenis Kelamin | Jumlah | |
|---|---|---|---|---|
| Laki-Laki | Perempuan | |||
| 1 | IX A | 16 | 16 | 32 |
| 2 | IX B | 15 | 16 | 31 |
| 3 | IX C | 16 | 18 | 34 |
| 4 | IX D | 18 | 16 | 34 |
| 5 | IX E | 18 | 16 | 34 |
| 6 | IX F | 18 | 16 | 34 |
| 7 | VII A | 13 | 19 | 32 |
| 8 | VII B | 14 | 18 | 32 |
| 9 | VII C | 14 | 18 | 32 |
| 10 | VII D | 15 | 17 | 32 |
| 11 | VII E | 16 | 16 | 32 |
| 12 | VII F | 16 | 16 | 32 |
| 13 | VIII A | 18 | 14 | 32 |
| 14 | VIII B | 17 | 13 | 30 |
| 15 | VIII C | 18 | 14 | 32 |
| 16 | VIII D | 18 | 15 | 33 |
| 17 | VIII E | 18 | 16 | 34 |
| 18 | VIII F | 17 | 17 | 34 |
| Total | 295 | 291 | 586 | |