| S No. | District | TRU | ST Population | Total Population | %age of ST's in Total Population |
| 1 | Ariyalur | Total | 8529 | 695524 | 1.23% |
| 2 | Ariyalur | Rural | 7907 | 616539 | 1.28% |
| 3 | Ariyalur | Urban | 622 | 78985 | 0.79% |
| 4 | Chennai | Total | 6728 | 4343645 | 0.15% |
| 5 | Chennai | Rural | 0 | 0 | 0.00% |
| 6 | Chennai | Urban | 6728 | 4343645 | 0.15% |
| 7 | Coimbatore | Total | 29103 | 4271856 | 0.68% |
| 8 | Coimbatore | Rural | 19559 | 1451653 | 1.35% |
| 9 | Coimbatore | Urban | 9544 | 2820203 | 0.34% |
| 10 | Cuddalore | Total | 11773 | 2285395 | 0.52% |
| 11 | Cuddalore | Rural | 7241 | 1531034 | 0.47% |
| 12 | Cuddalore | Urban | 4532 | 754361 | 0.60% |
| 13 | Dharmapuri | Total | 59549 | 2856300 | 2.08% |
| 14 | Dharmapuri | Rural | 57763 | 2400354 | 2.41% |
| 15 | Dharmapuri | Urban | 1786 | 455946 | 0.39% |
| 16 | Dindigul | Total | 6484 | 1923014 | 0.34% |
| 17 | Dindigul | Rural | 3512 | 1249762 | 0.28% |
| 18 | Dindigul | Urban | 2972 | 673252 | 0.44% |
| 19 | Erode | Total | 17693 | 2581500 | 0.69% |
| 20 | Erode | Rural | 15120 | 1387537 | 1.09% |
| 21 | Erode | Urban | 2573 | 1193963 | 0.22% |
| 22 | Kancheepuram | Total | 26508 | 2877468 | 0.92% |
| 23 | Kancheepuram | Rural | 18062 | 1342502 | 1.35% |
| 24 | Kancheepuram | Urban | 8446 | 1534966 | 0.55% |
| 25 | Kanniyakumari | Total | 5443 | 1676034 | 0.32% |
| 26 | Kanniyakumari | Rural | 3561 | 582107 | 0.61% |
| 27 | Kanniyakumari | Urban | 1882 | 1093927 | 0.17% |
| 28 | Karur | Total | 1450 | 935686 | 0.15% |
| 29 | Karur | Rural | 1075 | 624430 | 0.17% |
| 30 | Karur | Urban | 375 | 311256 | 0.12% |
| 31 | Madurai | Total | 5972 | 2578201 | 0.23% |
| 32 | Madurai | Rural | 2054 | 1134025 | 0.18% |
| 33 | Madurai | Urban | 3918 | 1444176 | 0.27% |
| 34 | Nagapattinam | Total | 3420 | 1488839 | 0.23% |
| 35 | Nagapattinam | Rural | 1618 | 1158557 | 0.14% |
| 36 | Nagapattinam | Urban | 1802 | 330282 | 0.55% |
| 37 | Namakkal | Total | 51416 | 1493462 | 3.44% |
| 38 | Namakkal | Rural | 50454 | 948230 | 5.32% |
| 39 | Namakkal | Urban | 962 | 545232 | 0.18% |
| 40 | Perambalur | Total | 3307 | 493646 | 0.67% |
| 41 | Perambalur | Rural | 2768 | 414426 | 0.67% |
| 42 | Perambalur | Urban | 539 | 79220 | 0.68% |
| 43 | Pudukkottai | Total | 792 | 1459601 | 0.05% |
| 44 | Pudukkottai | Rural | 432 | 1211217 | 0.04% |
| 45 | Pudukkottai | Urban | 360 | 248384 | 0.14% |
| 46 | Ramanathapuram | Total | 1078 | 1187604 | 0.09% |
| 47 | Ramanathapuram | Rural | 396 | 885210 | 0.04% |
| 48 | Ramanathapuram | Urban | 682 | 302394 | 0.23% |
| 49 | Salem | Total | 103921 | 3016346 | 3.45% |
| 50 | Salem | Rural | 98722 | 1626162 | 6.07% |
| 51 | Salem | Urban | 5199 | 1390184 | 0.37% |
| 52 | Sivaganga | Total | 1083 | 1155356 | 0.09% |
| 53 | Sivaganga | Rural | 375 | 829272 | 0.05% |
| 54 | Sivaganga | Urban | 708 | 326084 | 0.22% |
| 55 | Thanjavur | Total | 3641 | 2216138 | 0.16% |
| 56 | Thanjavur | Rural | 1302 | 1467577 | 0.09% |
| 57 | Thanjavur | Urban | 2339 | 748561 | 0.31% |
| 58 | The Nilgiris | Total | 28373 | 762141 | 3.72% |
| 59 | The Nilgiris | Rural | 19600 | 307532 | 6.37% |
| 60 | The Nilgiris | Urban | 8773 | 454609 | 1.93% |
| 61 | Theni | Total | 1686 | 1093950 | 0.15% |
| 62 | Theni | Rural | 1046 | 502109 | 0.21% |
| 63 | Theni | Urban | 640 | 591841 | 0.11% |
| 64 | Thiruvallur | Total | 37858 | 2754756 | 1.37% |
| 65 | Thiruvallur | Rural | 28885 | 1254674 | 2.30% |
| 66 | Thiruvallur | Urban | 8973 | 1500082 | 0.60% |
| 67 | Thiruvarur | Total | 2673 | 1169474 | 0.23% |
| 68 | Thiruvarur | Rural | 971 | 932231 | 0.10% |
| 69 | Thiruvarur | Urban | 1702 | 237243 | 0.72% |
| 70 | Thoothukkudi | Total | 3494 | 1572273 | 0.22% |
| 71 | Thoothukkudi | Rural | 1060 | 907500 | 0.12% |
| 72 | Thoothukkudi | Urban | 2434 | 664773 | 0.37% |
| 73 | Tiruchirappalli | Total | 18912 | 2418366 | 0.78% |
| 74 | Tiruchirappalli | Rural | 14383 | 1279204 | 1.12% |
| 75 | Tiruchirappalli | Urban | 4529 | 1139162 | 0.40% |
| 76 | Tirunelveli | Total | 8358 | 2723988 | 0.31% |
| 77 | Tirunelveli | Rural | 3202 | 1415742 | 0.23% |
| 78 | Tirunelveli | Urban | 5156 | 1308246 | 0.39% |
| 79 | Tiruvannamalai | Total | 72760 | 2186125 | 3.33% |
| 80 | Tiruvannamalai | Rural | 69198 | 1785364 | 3.88% |
| 81 | Tiruvannamalai | Urban | 3562 | 400761 | 0.89% |
| 82 | Vellore | Total | 63040 | 3477317 | 1.81% |
| 83 | Vellore | Rural | 58237 | 2169319 | 2.68% |
| 84 | Vellore | Urban | 4803 | 1307998 | 0.37% |
| 85 | Viluppuram | Total | 63920 | 2960373 | 2.16% |
| 86 | Viluppuram | Rural | 61687 | 2533456 | 2.43% |
| 87 | Viluppuram | Urban | 2233 | 426917 | 0.52% |
| 88 | Virudhunagar | Total | 2357 | 1751301 | 0.13% |
| 89 | Virudhunagar | Rural | 953 | 973956 | 0.10% |
| 90 | Virudhunagar | Urban | 1404 | 777345 | 0.18% |