| District | Area | Population |
|---|---|---|
| Ariyalur | 1,949.31 square kilometres | 7,52,481 |
| Chennai | 178.2 sq km | 4,681,087, |
| Coimbatore | 4,850 sq.km | 3472578 |
| Cuddalore | 3,564 sq km | 2600880 |
| Dharmapuri | 4497.77 Sq km | 1502900 |
| Dindigul | 6,058 sq km. | 2161367 |
| Erode | 5,692 Sq km | 22,59,608 |
| Kanchipuram | 4,432 sq km | 3990897 |
| Kanniyakumari | 1,684 Sq Km | 1863174 |
| Karur | 2901 sq.km | 10,76,588 |
| Krishnagiri | 5143 sq km | 1883731 |
| Madurai | 3,741.73 sq km | 3041038 |
| Nagapattinam | 2417 sq.km | 1614069 |
| Namakkal | 130,058 sq km | 1721179 |
| Nilgiris | 2,452.5 sq km | 735071 |
| Perambular | 1,752 sq km | 564511 |
| Pudukkottai | 4663 sq km | 1618725 |
| Ramnathapuram | 4123 sq km | 1337560 |
| Salem | 5245 sq km | 3480008 |
| Sivaganga | 4,189 Sq km | 1341250 |
| Thanjavur | 3476 sq km | 2402781 |
| Theni District | 2,889 sq km | 1243684 |
| Thoothukodi District | 4621 Sq km | 1738376 |
| Tiruvarur | 2161 sq km. | 1268094 |
| Tirunelveli | 6,823 Sq km | 3072880 |
| Tiruchirappalli | 4,404 sq km | 2713858 |
| Tiruvallur | 3,422 Sq km | 3725697 |
| Tiruppur | 516.12 Sq km | 2471222 |
| Tiruvannamalai | 6191 sq km | 3468965 |
| Vellore | 6077 sq km | 3928106 |
| Villupuram | 7217 sq km | 3463284 |
| Virudhnagar | 3445.73. sq km | 1943309 |
