| 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 | 258848 | 102135 | 39.46% | 365 | 0.14% | 156231 | 60.36% | 117 | 0.05% |
| Valangaiman (001) | 22021 | 10069 | 45.72% | 47 | 0.21% | 11898 | 54.03% | 7 | 0.03% |
| Kodavasal (002) | 45853 | 16263 | 35.47% | 12 | 0.03% | 29576 | 64.5% | 2 | 0% |
| Nannilam (003) | 30401 | 11554 | 38.01% | 3 | 0.01% | 18834 | 61.95% | 10 | 0.03% |
| Thiruvarur (004) | 23645 | 10474 | 44.3% | 41 | 0.17% | 13096 | 55.39% | 34 | 0.14% |
| Needamangalam (005) | 28390 | 13568 | 47.79% | 16 | 0.06% | 14803 | 52.14% | 3 | 0.01% |
| Mannargudi (006) | 63536 | 20289 | 31.93% | 189 | 0.3% | 43052 | 67.76% | 6 | 0.01% |
| Thiruthuraipoondi (007) | 45002 | 19918 | 44.26% | 57 | 0.13% | 24972 | 55.49% | 55 | 0.12% |