District Collectors
| Sl. No | District Collector | From | To |
| 1. | Shri. M. K. Devassy IAS | Apr.1958 | Feb.1959 |
| 2. | Shri. M. M. Varkey IAS | March 1959 | May 1960 |
| 3. | Shri. S. Ananthakrishnan IAS | May 1960 | Dec. 1960 |
| 4. | Shri. V. G. Cyriac IAS | Dec.1960 | May 1961 |
| 5. | Shri. P. P. Gopalan Nair IAS | May 1961 | May 1965 |
| 6. | Shri. K. Ramunny Menon IAS | May 1965 | May 1967 |
| 7. | Shri. S. Narayanaswami IAS | May 1967 | April 1969 |
| 8. | Shri. S. Krishnakumar IAS | April 1969 | Oct.1973 |
| 9. | Shri. Arunkumar IAS | Nov.1973 | Feb. 1975 |
| 10. | Shri. K. Uppliappan IAS | Feb.1975 | Dec.1976 |
| 11. | Shri. R. B. Pathak IAS | Dec.1976 | Jul.1977 |
| 12. | Shri. M. S. Joseph IAS | Jul. 1977 | Dec. 1978 |
| 13. | Shri. Philippose Thomas IAS | Dec. 1978 | June 1981 |
| 14. | Shri. K. R. Rajan IAS | 10.06.1981 | 03.02.1982 |
| 15. | Shri. M. A. Koshy IAS | 04.02.1982 | 30.06.1982 |
| 16. | Shri. P. J. Thomas IAS | 01.07.1982 | 24.04.1984 |
| 17. | Shri. M. P. Joseph IAS | 26.04.1984 | 19.05.1986 |
| 18. | Shri. V. Rajagopalan IAS | 20.05.1986 | 17.07.1987 |
| 19. | Shri. K. R. Rajan IAS | 27.07.1987 | 02.09.1991 |
| 20. | Shri. V. J. Kurian IAS | 02.09.1991 | 14.06.1993 |
| 21. | Dr. Thomas Mathew IAS | 14.06.1993 | 26.06.1995 |
| 22. | Dr. K. M. Abraham IAS | 26.06.1995 | 31.08.1996 |
| 23. | Shri. V. P. Joy IAS | 31.08.1996 | 06.04.1999 |
| 24. | Shri. K. R. Viswambharan IAS | 06.04.1999 | 08.06.2001 |
| 25. | Shri. Gyaneshkumar IAS | 08.06.2001 | 16.07.2004 |
|
26. |
Sri.A.P.M.Mohammed Hanish IAS* | 16.07.2004 |
* Present Collector