SL.NO.
District
Area (km2)
Population     (2011 Census)
Number of taluks
Names of taluks
1
Ariyalur
3,208
754,894[2]
3
Ariyalur
Udayarpalayam
Sendurai



2
Chennai
178.2
4,646,732[3]
5
Egmore-Nungambakkam
Mylapore-Triplicane
Mambalam-Guindy
Fort-Tondiarpet
Perambur-Purasawalkam

3
Coimbatore
7,469
3,458,045[4]
8
Mettupalayam
Coimbatore-North
Coimbatore-South
Pollachi
Annur
Kinathukadavu
Sulur taluk
Valparai[5]
4
Cuddalore
3,678
2,605,914[6]
7
Cuddalore
Panruti
Chidambaram
Kattumannarkoil
Kurinjipadi
Titakudi
Vriddachalam
5
Dharmapuri
4,977.77
1,506,843[7]
5
Dharmapuri
Palacode
Pennagaram
Harur
Pappireddipatti

6
Dindigul
6,266.64
2,159,775[8]
8
Athoor
Dindigul
Kodaikanal
Natham
Nilakottai
Oddanchattiram
Palani
Vedasandur[9]
7
Erode
8,161.91
2,251,744[10]
6
Anthiyur
Bhavani
Erode
Gobichettipalayam
Perundurai
Sathyamangalam
8
Kanchipuram
7,857
3,998,252[11]
11
Alandur
Chengalpattu
Cheyyur
Kanchipuram
Madurantakam
Sholinganallur
Sriperumbudur
Tambaram
Thiruporur
Thirukazhukundram
Uthiramerur
9
Kanniyakumari
1,672
1,870,374[12]
4
Agastheeswaram
Kalkulam
Vilavancode
Thovalai


10
Karur
2,895.57
1,064,493[13]
5
Aravakurichi
Kadavur
Karur
Krishnarayapuram
Kulithalai

11
Krishnagiri
5,143
1,879,809[14]
5
Krishnagiri
Hosur
Pochampalli
Uthangarai
Denkanikottai

12
Madurai
3741.73
3,038,252[15]
7
Madurai-North
Madurai-South
Melur
Peraiyur
Thirumangalam
Usilampatti
Vadipatti
13
Nagapattinam
2715.83
1,616,450[16]
8
Kilvelur
Kuthalam
Mayiladuthurai
Nagapattinam
Sirkazhi
Tharangambadi
Thirukkuvalai
14
Namakkal
3363
1,726,601[17]
5
Kollimalai
Namakkal
Paramathi-Velur
Thiruchengode
Rasipuram

15
The Nilgiris
2,452.50
735,394[18]
6
Coonoor
Gudalur
Kotagiri
Kundah
Panthalur
Udagamandalam
16
Perambalur
3,690.07
565,223[19]
4
Alathur
Kunnam
Perambalur
Veppanthattai


17
Pudukkottai
4,663
1,618,345[20]
9
Alangudi
Aranthangi
Avadaiyarkoil
Gandarvakottai
Illupur
Kulathur
Manamelkudi
Pudukottai
Thirumayam
18
Ramanathapuram
4,089.57
1,353,445[21]
8
Kadaladi
Kamuthi
Manamelkudi
Mudukulathur
Paramakudi
Ramanathapuram
Rameswaram
Tiruvadanai
19
Salem
5,205
3,482,056[22]
9
Attur
Idappadi
Gangavalli
Mettur
Omalur
Pethanaickenpalayam
Salem
Sankagiri
Valapady
Yercaud
20
Sivaganga
4,086
1,339,101[23]
6
Devakottai
Ilayangudi
Karaikudi
Manamadurai
Sivaganga
Tirupathur
Tiruppuvanam
21
Thanjavur
3,396.57
2,405,890[24]
8
Kumbakonam
Orathanadu
Papanasam
Pattukkottai
Peravurani
Thanjavur
Thiruvaiyaru
Thiruvidaimarudur[25]
22
Theni
3,066
1,245,899[26]
5
Theni
Periyakulam
Andipatti
Bodniayakkanur
Uthamapalayam
Uthamapalayam
23
Thoothukudi
4621
1,750,176[27]
8
Ettayapuram
Kovilpatti
Ottapidaram
Sathankulam
Srivaikuntam
Thiruchendur
Thoothukudi
Vilathikulam
24
Tiruchirappalli
4,407
2,722,290[28]
9
Lalgudi
Manachanallur
Manapparai
Musiri
Srirangam
Tiruchirapalli
Thiruverumpur
Thottiyam
Thuraiyur
25
Thirunelveli
6,810
3,077,233[29]
11
Alangulam
Ambasamudram
Nanguneri
Palayamkottai
Tenkasi
Shenkottai
Radhapuram
Sankarankoil
Sivagiri
Tirunelveli
Veerakeralamputhur
26
Tiruppur
5,186.34
2,479,052[30]
7
Avinashi
Palladam
Dharapuram
Kangeyam
Madathukulam
Tiruppur
Udumalaipettai
27
Thiruvallur
3,424
3,728,104[31]
11
Ambattur
Gummidipoondi
Madhavaram
Maduravoyal
Tiruvottiyur
Tiruttani
Pallipattu
Ponneri
Poonamallee
Tiruvallur
Uthukkottai
28
Tiruvannamalai
6,191
2,464,875[32]
7
Arani
Chengam
Cheyyar
Polur
Thandarampattu
Tiruvannamalai
Vandavasi
29
Thiruvarur
2,161
1,264,277[33]
7
Kudavasal
Mannargudi
Nannilam
Needamangalam
Thiruthiraipoondi
Tiruvarur
Valangaiman
30
Vellore
6,077
3,936,331[34]
9
Ambur
Arakkonam
Arcort
Gudiyatham
Katpadi
Titupattur
Vaniyambadi
Vellore
Walajapet
31
Villupuram
7,217
3,458,873[35]
9
Chinnasalem
Gingee
Kallakurichi
Sankarapuram
Tindivanam
Ulundupettai
Tirukoilur
Vanur
Villupuram
32
Virudhunagar
4,288
1,942,288[36]
8
Aruppukkottai
Kariapatti
Rajapalayam
Sattur
Sivakasi
Srivilliputhru
Tiruchuli
Virudhunagar