| 2000 | Thiruvananthapuram | Birth rate | 16.39 | per 1000 population |
| 2000 | Kollam | Birth rate | 15.19 | per 1000 population |
| 2000 | Pathanamthitta | Birth rate | 14.32 | per 1000 population |
| 2000 | Alappuzha | Birth rate | 12.98 | per 1000 population |
| 2000 | Kottayam | Birth rate | 17.2 | per 1000 population |
| 2000 | Idukki | Birth rate | 16.37 | per 1000 population |
| 2000 | Ernakulam | Birth rate | 16.24 | per 1000 population |
| 2000 | Thrissur | Birth rate | 17.05 | per 1000 population |
| 2000 | Palakkad | Birth rate | 17.01 | per 1000 population |
| 2000 | Malappuram | Birth rate | 26.07 | per 1000 population |