Note: Estimated based on the average number of permanent and casual labour employed in different zones.
| 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| The Nilgiris | 3,281 | 3,281 | 3,281 | 3,281 | 3,281 | 3,281 | 3,281 | 3,511 | 3,604 | 3,604 | 3,643 | 3,669 | 3,669 | 3,669 | 3,669 |
| Salem District | 3,471 | 3,941 | 3,941 | 3,526 | 6,261 | 6,261 | 6,322 | 7,162 | 7,475 | 4,876 | 4,876 | 4,876 | 4,876 | 4,876 | 4,899 |
| Coimbatore | 2,049 | 2,049 | 2,049 | 2,056 | 2,049 | 2,049 | 2,046 | 2,049 | 2,049 | 2,048 | 1,970 | 1,970 | 1,970 | 1,970 | 1,970 |