| Tehsil Name | Total Households | Number of SC Households | % of SC Households | Number of ST Households | % of ST Households | Number of Others Households | % of Others Households | Number of No Caste & Tribe Households | % No Caste & Tribe Households |
|---|---|---|---|---|---|---|---|---|---|
| All India Total | 179787454 | 33164085 | 18.45% | 19737399 | 10.98% | 123161662 | 68.5% | 3679958 | 2.05% |
| State Total | 10088119 | 2577454 | 25.55% | 182999 | 1.81% | 7315714 | 72.52% | 10196 | 0.1% |
| District Total | 318840 | 120720 | 37.86% | 627 | 0.2% | 197136 | 61.83% | 346 | 0.11% |
| Sirkali (001) | 67908 | 26538 | 39.08% | 192 | 0.28% | 41157 | 60.61% | 21 | 0.03% |
| Mayiladuthurai (002) | 40031 | 16615 | 41.51% | 124 | 0.31% | 23273 | 58.14% | 8 | 0.02% |
| Kuthalam (003) | 27684 | 9632 | 34.79% | 25 | 0.09% | 17949 | 64.84% | 78 | 0.28% |
| Tharangambadi (004) | 44905 | 16409 | 36.54% | 21 | 0.05% | 28258 | 62.93% | 217 | 0.48% |
| Nagapattinam (005) | 42572 | 18117 | 42.56% | 184 | 0.43% | 24256 | 56.98% | 15 | 0.04% |
| Kilvelur (006) | 32325 | 14364 | 44.44% | 67 | 0.21% | 17893 | 55.35% | 1 | 0% |
| Thirukkuvalai (007) | 16151 | 8711 | 53.93% | 14 | 0.09% | 7425 | 45.97% | 1 | 0.01% |
| Vedaranyam (008) | 47264 | 10334 | 21.86% | 0 | 0% | 36925 | 78.12% | 5 | 0.01% |