List of sub-districts of Assam
The administrative entities that are a level below of Districts are named as Sub-districts (officially Co-district) in Assam. Since India's independence in 1947, the administrative entities of Assam have increased over a period of time. With 54 subdivisions initially, the Government of Assam incorporated 24 more sub-districts[1][2] with 5 new districts[3] on 26 January 2016,[4] increasing the count to 78. Where the subdivisions are the administrative units, the terms, such as Tehsils or Mandals represent revenue collecting units under a district administration, and both are treated as sub–districts. Assam has 155 Tehsils, and a few fall under multiple districts, specially the districts in BTC and its surrounding. In present the total number of subdivisions are 78.
| District | Headquarters | Sub-districts | 
|---|---|---|
| Baksa | Mushalpur | Mushalpur, Salbari, Tamulpur | 
| Bajali | Pathsala | Bajali | 
| Barpeta | Barpeta | Barpeta, Kalgachia, Sarukhetri, Sorbhog | 
| Biswanath | Biswanath Chariali | Biswanath Chariali, Gohpur | 
| Bongaigaon | Bongaigaon | Bongaigaon, Abhayapuri | 
| Cachar | Silchar 1 | Silchar, Lakhipur | 
| Charaideo | Sonari | Charaideo,Mahmora | 
| Chirang | Kajalgaon | Kajalgaon,Bijni | 
| Darrang | Mangaldoi | Mangaldoi | 
| Dhemaji | Dhemaji | Dhemaji, Jonai | 
| Dhubri | Dhubri 2 | Dhubri, Bilasipara | 
| Dibrugarh | Dibrugarh 3 | Dibrugarh, Moran, Naharkatiya | 
| Dima Hasao | Haflong | Haflong, Diyungbra, Maibong | 
| Goalpara | Goalpara 4 | Goalpara, Lakhipur | 
| Golaghat | Golaghat 5 | Golaghat, Bokakhat, Dhansiri, Merapani | 
| Hailakandi | Hailakandi | Hailakandi, Katlicherra | 
| Hojai | Hojai | Hojai, Lumding | 
| Jorhat | Jorhat 6 | Jorhat, Titabor | 
| Kamrup | Rangiya | Kamrup, Rangiya | 
| Kamrup Metro | Guwahati 7A 7B 7C | Guwahati, Chandrapur, Dispur, Sonapur, Azara | 
| Karbi Anglong | Diphu | Diphu, Bokajan, Howraghat | 
| West Karbi Anglong | Hamren | Hamren | 
| Karimganj | Karimganj | Karimganj, Ramkrishna Nagar | 
| Kokrajhar | Kokrajhar | Parbatjhora, Gossaigaon, Kokrajhar | 
| Lakhimpur | North Lakhimpur | North Lakhimpur, Bihpuria Narayanpur, Dhakuakhana | 
| Majuli | Garamur | Majuli | 
| Morigaon | Morigaon | Morigaon | 
| Nagaon | Nagaon 8 | Nagaon, Kaliabor | 
| Nalbari | Nalbari | Nalbari, Mukalmua, Tihu | 
| Sivasagar | Sivasagar | Sivasagar, Nazira | 
| Sonitpur | Tezpur 9 | Sonitpur, Dhekiajuli | 
| South Salmara-Mankachar | Hatsingimari | Hatsingimari | 
| Tinsukia | Tinsukia | Tinsukia, Margherita, Sadiya | 
| Udalguri | Udalguri | Udalguri, Bhergaon | 
   The oldest recognised and constantly inhabited urban centres based on the earliest years of formation of the civic bodies, constituted before the Indian independence of 1947.   | ||
Notes
- ^1 Formation of Silchar municipal region, 1922.[5]
 - ^2 Formation of Dhubri municipal region, 1883.[6]
 - ^3 Formation of Dibrugarh municipal region, 1873.[7]
 - ^4 Formation of Goalpara municipal region, 1875.[8]
 - ^5 Formation of Golaghat municipal region, 1920.[9]
 - ^6 Formation of Jorhat municipal region, 1909.[10]
 - ^7A Formation of Guwahati municipal region, constituted as a Town committee in 1853.[11]
 - ^7B Guwahati municipal region reconstituted under a Municipal board in 1873.
 - ^7C Guwahati municipal region upgraded to a Municipal corporation in 1974.[12]
 - ^8 Formation of Nagaon municipal region, 1893.[13]
 - ^9 Formation of Tezpur municipal region, 1894.[14]
 
References
- ^ "2 New Districts and 24 Sub-divisions in Assam?, Eclectic North–east". 26 January 2016. Retrieved 27 January 2016.
 - ^ "Assam CM announces creation of 2 New Districts and 24 Subdivisions, Voice of Greater Assam". Staff Reporter. 26 January 2016. Retrieved 27 January 2016.
 - ^ "CM Tarun Gogoi announces 5 new districts in Assam on Independence Day, DNA". PTI – Gauhati. 15 August 2015.
 - ^ "Celebrations tempered with caution – Assam CM unwraps gift of new districts. The Telegraph, (Calcutta – Gauhati)". Sumir Karmakar. 15 August 2015. Archived from the original on August 16, 2015. Retrieved 16 August 2015.
 - ^ "Silchar Municipal Board (Silchar Municipality) Assam – Silchar Karimganj Hailakandi". Archived from the original on 28 July 2016. Retrieved 5 August 2016.
 - ^ "Dhubri Municipal Board".
 - ^ "Dibrugarh Municipal Board". Archived from the original on 2016-06-11. Retrieved 2017-04-07.
 - ^ "Goalpara Municipal Board-About Us". Archived from the original on 2016-06-25. Retrieved 2017-04-07.
 - ^ "AGP lists civic poll candidates (Golaghat Municipal Board)". Archived from the original on June 30, 2015. Retrieved 5 August 2016.
 - ^ "Jorhat Municipal Board(JBM),Jorhat,Assam". Archived from the original on 2016-03-27.
 - ^ Saikia, Dr Jugal (8 April 2016). Economics Of Informal Milk Producing Units In Assam. Notion Press. ISBN 9789352069385. Retrieved 5 August 2016 – via Google Books.
 - ^ "History – GMC Portal". Archived from the original on 2016-06-29. Retrieved 2017-04-07.
 - ^ "Nagaon – History". Archived from the original on 2018-04-18. Retrieved 2017-04-07.
 - ^ "About Municipal Board – Tezpur". Archived from the original on 2016-06-24.