| population | |
| Ariyalur | 754894 |
| Chengalpattu district | 2556423 |
| Chennai | 4646732 |
| Coimbatore | 3458045 |
| Cuddalore | 2605914 |
| Dharmapuri | 1506843 |
| Dindigul | 2159775 |
| Erode | 2251744 |
| Kallakurichi district | 1682687 |
| Kancheepuram | 3998252 |
| Kanniyakumari | 1870374 |
| Karur | 1064493 |
| Krishnagiri | 1879809 |
| population | |
| Madurai | 3038252 |
| Mayiladuthurai district | 918356 |
| Nagapattinam | 1616450 |
| Namakkal | 1726601 |
| Nilgiris | 735394 |
| Perambalur | 565223 |
| Pudukkottai | 1618345 |
| Ramanathapuram | 1353445 |
| Ranipet district | 1210277 |
| Salem | 3482056 |
| Sivaganga | 1339101 |
| Tenkasi district | 1407627 |
| Thanjavur | 2405890 |
| population | |
| Theni | 1245899 |
| Thiruvallur | 3728104 |
| Thiruvarur | 1264277 |
| Thoothukkudi | 1750176 |
| Tiruchirappalli | 2722290 |
| Tirunelveli Kattabo | 3077233 |
| Tirupattur district | 1111812 |
| Tiruppur | |
| Tiruvannamalai | 2464875 |
| Vellore | 1614242 |
| Villupuram | 3458873 |
| Virudhunagar | 1942288 |
 | Tiruchirappalli International Airport | ~ 49.37 km |
| Thanjavur Air Force Station | ~ 90.15 km |
| Salem Airport | ~ 91.86 km |
| Madurai Airport | ~ 132.23 km |
| Coimbatore International Airport | ~ 140.83 km |
| Neyveli Airport | ~ 146.96 km |
| Pondicherry Airport | ~ 193.77 km |
| Mysore Airport | ~ 228.23 km |
| Cochin International Airport | ~ 231.22 km |
