| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Sadiki | city | Prefecture du Tandjile | Chad | 9.5166667 | 16.25 | 1167 | 3855 |
| Samango | city | Prefecture du Tandjile | Chad | 9.2 | 16.5 | 1266 | 3705 |
| Samia | city | Prefecture du Tandjile | Chad | 9.15 | 16.15 | 1394 | 4042 |
| Sangi | city | Prefecture du Tandjile | Chad | 9.8372222 | 16.4858333 | 1115 | 3850 |
| Sangui | city | Prefecture du Tandjile | Chad | 9.8372222 | 16.4858333 | 1115 | 3850 |
| Sania | city | Prefecture du Tandjile | Chad | 9.15 | 16.15 | 1394 | 4042 |
| Sategui | city | Prefecture du Tandjile | Chad | 9.5166667 | 16.25 | 1167 | 3855 |
| Semaindi | city | Prefecture du Tandjile | Chad | 9.3333333 | 16.7666667 | 1266 | 3855 |
| Semaïndi | city | Prefecture du Tandjile | Chad | 9.3333333 | 16.7666667 | 1266 | 3855 |
| Semegin | city | Prefecture du Tandjile | Chad | 10.0166667 | 16.3333333 | 1102 | 3915 |
| Semeguine | city | Prefecture du Tandjile | Chad | 10.0166667 | 16.3333333 | 1102 | 3915 |
| Serem Kali | city | Prefecture du Tandjile | Chad | 9.05 | 15.7833333 | 1420 | 4963 |
| Serem Ogodo | city | Prefecture du Tandjile | Chad | 9.0666667 | 15.8 | 1420 | 4950 |
| Serem Ogodo | city | Prefecture du Tandjile | Chad | 9.0666667 | 15.8166667 | 1420 | 4950 |
| Sidigi | city | Prefecture du Tandjile | Chad | 9.5166667 | 16.25 | 1167 | 3855 |
| Sidigue | city | Prefecture du Tandjile | Chad | 9.5166667 | 16.25 | 1167 | 3855 |
| Sidigui | city | Prefecture du Tandjile | Chad | 9.5166667 | 16.25 | 1167 | 3855 |
| Sidigué | city | Prefecture du Tandjile | Chad | 9.5166667 | 16.25 | 1167 | 3855 |
| Souan | city | Prefecture du Tandjile | Chad | 9.9666667 | 17.0166667 | 1076 | 2501 |
| Souley | city | Prefecture du Tandjile | Chad | 9.1333333 | 15.7833333 | 1404 | 3855 |
| Souléy | city | Prefecture du Tandjile | Chad | 9.1333333 | 15.7833333 | 1404 | 3855 |
| Soumoul | city | Prefecture du Tandjile | Chad | 9.7 | 16.0666667 | 1131 | 3900 |
| Sémégin | city | Prefecture du Tandjile | Chad | 10.0166667 | 16.3333333 | 1102 | 3915 |
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