Tamil Nadu is the State in India, famous for Political and Tamil Cinemas, covered 130,058 square kilometers of Area with 72 million populations. The Religions in Tamil Nadu acquired Hinduism 88 %, Christianity 6%, and Islam 5.8%, has thousands of Temples in different places of the State. Chennai is the Capital and largest city in Tamil Nadu and is home to 4.5 million inhabitants and fourth largest city in India. Tamil Nadu holds long Coastline with many urban areas, which connects cities by sea transportation. Coimbatore and Madurai are second and third largest cities in Tamil Nadu after Chennai city.
| Rank | City Name | Population | Area (km²) | Density ( inhabitants/km²) | District |
|---|---|---|---|---|---|
| 1 | Chennai [Madras] | 8,653,521 | 788 | 10,972 | Chennai, Kanchipuram and Tiruvallur |
| 2 | Coimbatore | 2,136,916 | 642 | 3,327 | Coimbatore |
| 3 | Madurai | 1,465,625 | 143 | 10,218 | Madurai |
| 4 | Tiruchirappalli (Tiruchchirappalli) | 1,022,518 | 198 | 5,149 | Tiruchirappalli |
| 5 | Tiruppur (Tirupper) | 963,173 | 197 | 4,870 | Tiruppur |
| 6 | Salem | 917,414 | 115 | 7,959 | Salem |
| 7 | Erode | 521,891 | 130 | 4,000 | Erode |
| 8 | Tirunelveli | 497,826 | 135 | 3,680 | Tirunelveli |
| 9 | Vellore | 484,690 | 140 | 3,446 | Vellore |
| 10 | Thoothukkudi (Tuticorin) | 411,628 | 63 | 6,466 | Thoothukudi |
| 11 | Dindigul | 292,512 | Dindigul | ||
| 12 | Thanjavur | 291,067 | 74 | 3,916 | Thanjavur |
| 13 | Ranippettai (Ranipet) | 264,330 | 49 | 5,297 | Vellore |
| 14 | Sivakasi | 234,704 | 48 | 4,875 | Virudhunagar |
| 15 | Karur | 234,191 | Karur | ||
| 16 | Udhagamandalam (Ooty) | 233,426 | 253 | 922 | The Nilgiris |
| 17 | Hosur | 229,528 | 28 | 7,969 | Krishnagiri |
| 18 | Nagercoil | 224,849 | 24 | 9,264 | Kanyakumari |
| 19 | Kanchipuram [Kancheepuram] | 221,715 | 27 | 8,100 | Kanchipuram |
| 20 | Kumarapalayam | 195,071 | Namakkal | ||
| 21 | Karaikudi | 181,851 | 42 | 4,239 | Sivaganga |
| 22 | Neyveli | 179,150 | 145 | 1,234 | Cuddalore |
| 23 | Cuddalore | 173,636 | 27 | 6,270 | Cuddalore |
| 24 | Kumbakonam | 167,155 | 17 | 9,497 | Thanjavur |
| 25 | Tiruvannamalai | 145,278 | 13 | 10,650 | Tiruvannamalai |
Population Census India