15 elections on record · DMK dominant · 15 total
Coonoor is an Assembly constituency in Tamil Nadu. It has participated in 15 elections from 1962 to 2026. DMK is the historically dominant party with 6 wins out of 15 elections.
| Year | Winner | Party | Votes | Vote % | Runner-up | Party | Margin |
|---|---|---|---|---|---|---|---|
| 2026 | M. Raju | DMK | 50470 | 35.69% | A. Ramu | ADMK | 8099 |
| 2021 | K. Ramachandran | DMK | 61820 | 45.49% | Kappachi D. Vinoth | ADMK | 4105 |
| 2016 | Ramu A. | ADMK | 61650 | 45.71% | Mubarak B. M. | DMK | 3710 |
| 2011 | Ramachandran K | DMK | 61302 | 50.66% | Bellie A | CPI | 9292 |
| 2006 | N. Kovaithangam | INC | 46561 | 53.94% | S. Kalaiyarasan Susi | VCK | 20979 |
| 2001 | M. Kovai Thangam | TMC(M) | 47428 | 53.21% | Dr. K. Krishnaswamy | PT | 17915 |
| 1996 | V.P. Singaravelu | DMK | 55284 | 59.50% | Kurichimanimaran | ADMK | 25272 |
| 1991 | A. Sridharan | ADMK | 55284 | 60.71% | A.T. Karuppaiah | CPI | 21184 |
| 1989 | P. Lakshmi | ADK(J) | 38296 | 42.52% | D. M. Shanmugam | DMK | 6672 |
| 1984 | V. Thangavelu | INC | 48779 | 63.46% | A. T. Karuppiah | CPI | 22670 |
| 1980 | A. T. Karuppiah | CPI | 46406 | 56.83% | N. Kovaithangam | INC | 13052 |
| 1977 | R. S. Thangavelu | AIADMK | 20926 | 34.18% | A. T. Karuppiah | CPI | 4685 |
| 1971 | S. J. Sadiq Pasha | DMK | 45369 | 62.76% | T. Malayappa Gounder | IND | 19482 |
| 1967 | S. J. Sadiq Pasha | DMK | 39796 | 58.17% | K. Ramasami | INC | 14018 |
| 1962 | Venkidusamy Gounder | Independent | 29908 | 46.32% | Lakshmipathy Raju | INC | 7734 |