| City | 2026 Pop. ↓ |
|---|---|
| Cologne | 1,031,939 |
| Chemnitz | 251,286 |
| Cottbus ( Chosebuz ) | 96,335 |
| Castrop-Rauxel | 73,728 |
| Celle | 67,059 |
| Cuxhaven | 49,654 |
| Coburg | 41,847 |
| Coesfeld | 39,123 |
| Crailsheim | 37,169 |
| Cloppenburg | 37,151 |
| Calw | 25,473 |
| Coswig | 20,590 |
| Crimmitschau | 17,837 |
| Cham | 17,772 |
| Clausthal-Zellerfeld | 14,060 |
| Cremlingen | 12,999 |
| Cadolzburg | 11,194 |
| Coswig (Anhalt) | 10,942 |