List of districts of Bihar

Bihar, a state of India, currently has 38 administrative districts, 101 subdivisions (अनुमंडल) and 535 CD blocks.

A district of an Indian state is an administrative geographical unit, headed by a district magistrate or a deputy commissioner, an officer belonging to the Indian Administrative Service. The district magistrate or the deputy commissioner is assisted by a number of officials belonging to different wings of the administrative services of the state.

A superintendent of police, an officer belonging to Indian Police Service, is entrusted with the responsibility of maintaining law and order and related issues.

3 to 6 districts are comprised to form a division (प्रमंडल). Each district is divided into sub-divisions (अनुमंडल), which are further sub-divided into CD blocks (प्रखण्ड).

Note: These densities don't agree with the populations and areas.

No.	Code	District Name	District Headquarters	C.D. Blocks	Population (2011)	Area (km2)	Density (/km2) (2011)	Map
1	AR	Araria	Araria	Araria Bhargama Forbesganj Jokihat Kursa Kanta Narpatganj Palasi Raniganj Sikti	2,811,569	2,829	991
2	AW	Arwal	Arwal	Arwal Kaler Karpi Kurtha Sonbhadra Banshi Suryapur	699,000	637	918
3	AU	Aurangabad	Aurangabad	Aurangabad Barun Daudnagar Deo Goh Haspura Kutumba Madanpur Nabinagar Obra Rafiganj	2,540,073	3,303	769
4	BA	Banka	Banka	Amarpur Banka Barahat Belhar Bounsi Chandan Dhoraiya Fullidumar Katoria Rajoun Sambhuganj	2,034,763	3,018	533
5	BE	Begusarai	Begusarai	Bachhwara Bakhri Balia Barauni Begusarai Bhagwanpur Birpur Cheria Bariarpur Chhorahi Dandari Garhpura Khodawandpur Mansurchak Matihani Naokothi Sahebpur Kamal Samho Akha Kurha Teghra	2,970,541	1,917	1,222
6	BG	Bhagalpur	Bhagalpur	Bihpur Gopalpur Goradih Ismailpur Jagdishpur Kahalgaon Kharik Narayanpur Nathnagar Naugachhia Pirpainti Rangra Chowk Sabour Sanhaula Shahkund Sultanganj	3,037,766	2,569	946
7	BJ	Bhojpur	Arrah	Arrah Agiaon Barhara Bihiya Charpokhari Garhani Jagdishpur Koilwar Piro Sahar Sandesh Shahpur Tarari Udwantnagar	2,728,407	2,473	903
8	BU	Buxar	Buxar	Buxar Brahmapur Chakki Chausa Chaugain Dumraon Itarhi Kesath Nawanagar Rajpur Simri	1,706,352	1,624	864
9	DA	Darbhanga	Darbhanga	Alinagar Bahadurpur Baheri Benipur Biraul Darbhanga Sadar Gaura Bauram Ghanshyampur Hanuman Nagar Hayaghat Jale Keoti Kiratpur Kusheshwar Asthan East Kusheshwar Asthan Manigachhi Singhwara Tardih	3,937,385	2,278	1,442
10	EC	East Champaran	Motihari	Adapur Areraj Banjaria Bankatwa Chakia Chiraiya Dhaka Ghorasahan Harsidhi Kalyanpur Kesaria Kotwa Madhuban Mehsi Motihari Narkatia Paharpur Pakri Dayal Patahi Phenhara Piprakothi Ramgarhwa Raxaul Sangrampur Sugauli Tetaria Turkaulia	5,099,371	3,969	991
11	GA	Gaya	Gaya	Gaya Town Amas Atri Banke Bazar Barachatti Bathani Belaganj Bodh Gaya Dobhi Dumaria Fatehpur Guraru Gurua Imamganj Khizirsarai Konch Manpur Mohanpur Muhra Paraiya Sherghati Tan Kuppa Tekari Wazirganj	4,391,418	4,978	696
12	GO	Gopalganj	Gopalganj	Baikunthpur Barauli Bhorey Bijaipur Gopalganj Hathua Katiya Kuchaikote Manjha Pach Deuri Phulwaria Sidhwalia Thawe Uchkagaon	2,562,012	2,033	1,057
13	JA	Jamui	Jamui	Barhat Chakai Gidhour Islampur Aliganj Jamui Jhajha Khaira Laxmipur Sikandra Sono	1,760,405	3,099	451
14	JE	Jehanabad	Jehanabad	Ghoshi Hulasganj Jehanabad Kako Makhdumpur Modanganj Ratni Faridpur	1,125,313	1,569	963
15	KH	Khagaria	Khagaria	Alauli Baldaur Chautham Gogri Khagaria Mansi Parbatta	1,666,886	1,486	859
16	KI	Kishanganj	Kishanganj	Bahadurganj Dighalbank Kishanganj Kochadhaman Pothia Terhagachh Thakurganj	1,690,400	1,884	687
17	KM	Kaimur	Bhabua	Adhaura Bhabua Bhagwanpur Chainpur Chand Durgawati Kudra Mohania Nuaon Ramgarh Rampur	1,626,384	3,363	382
18	KT	Katihar	Katihar	Amdabad Azamnagar Balrampur Barari Barsoi Dandkhora Falka Hasanganj Kadwa Katihar Korha Kursela Manihari Mansahi Pranpur Sameli	3,071,029	3,056	782
19	LA	Lakhisarai	Lakhisarai	Barahiya Chanan Halsi Lakhisarai Pipariya Ramgarh Chowk Surajgarha	1,000,912	1,229	652
20	MB	Madhubani	Madhubani	Andhra Tharhi Babubarhi Basopatti Benipatti Bisfi Ghoghardiha Harlakhi Jainagar Jhanjharpur Kaluahi Khajauli Ladania Lakhnaur Laukahi Madhwapur Madhubani Pandaul Phulparas Rahika Rajnagar	4,487,379	3,501	1,020
21	MG	Munger	Munger	Asarganj Bariarpur Dharhara Haveli Kharagpur Jamalpur Munger Sangrampur Tarapur Tetia Bambar	1,367,765	1,419	800
22	MP	Madhepura	Madhepura	Alamnagar Bihariganj Chousa Gamhariya Ghelardh Gwalpara Kumarkhand Madhepura Murliganj Puraini Shankarpur Singheshwar Udakishunganj	2,001,762	1,787	853
23	MZ	Muzaffarpur	Muzaffarpur	Aurai Block Bandra Bochaha Gaighat Kanti Katra Kurhani Marwan Minapur Muraul (Dholi) Motipur Musahri Paroo Sahebganj Sakra Saraiya	4,801,062	3,173	1,180
24	NL	Nalanda	Bihar Sharif	Asthawan Bena Biharsharif Bind Chandi Ekangarsarai Giriyak Harnaut Hilsa Islampur Karai Parsurai Katrisarai Nagarnausa Noorsarai Parwalpur Rahui Rajgir Sarmera Silao Tharthari	2,877,653	2,354	1,006
25	NW	Nawada	Nawada	Akbarpur Govindpur Hisua Kashichak Kawakol Meskaur Nardiganj Narhat Nawada Pakribarawan Rajauli Roh Sirdala Warisaliganj	2,219,146	2,492	726
26	PA	Patna	Patna	Patna Sadar Athmalgola Bakhtiarpur Barh Belchi Bihta Bikram Danapur Daniyawan Dhanarua Dulhin Bazar Fatuha Ghoswari Khusrupur Maner Masaurhi Mokama Naubatpur Paliganj Pandarak Phulwari Sharif Punpun Sampatchak	5,838,465	3,202	1,471
27	PU	Purnia	Purnia	Amour Baisa Baisi Banmankhi Barhara Kothi Bhawanipur Rajdham Dagarua Dhamdaha Jalalgarh Kasba Krityanand Nagar Purnia East Rupauli Srinagar	3,264,619	3,228	787
28	RO	Rohtas	Sasaram	Akorhi Gola Bikramganj Chenari Dawath Dehri Dinara Karakat Kargahar Kochas Nasriganj Nauhatta Nokha Rajpur Rohtas Sanjhauli Sasaram Sheosagar Suryapura Tilauthu	2,959,918	3,850	636
29	SH	Saharsa	Saharsa	Banma Itahri Kahara Mahishi Nauhatta Patarghat Salkhua Sattar Kataiya Sour Bazar Simri-Bakhtiyarpur Sonbarsa	1,900,661	1,702	885
30	SM	Samastipur	Samastipur	Bibhutipur Bithan Dalsing Sarai Hasanpur Kalyanpur Khanpur Mohanpur Mohiuddin Nagar Morwa Patori Pusa Rosera Samastipur Sarairanjan Shivajinagar Singhiya Tajpur Ujiyarpur Vidyapati Nagar Warishnagar	4,261,566	2,905	1,175
31	SO	Sheohar	Sheohar	Dumri Katsari Piprahi Purnahiya Sheohar Tariani Chowk	656,246	349	1,880
32	SP	Sheikhpura	Sheikhpura	Ariari Barbigha Chewara Ghat Kusumbha Sheikhpura Shekhopur Sarai	634,927	689	762
33	SR	Saran	Chhapra	Amnour Baniapur Chhapra Dariyapur Dighwara Ekma Garkha Ishupur Jalalpur Lahladpur Maker Manjhi Marhaura Mashrakh Nagra Panapur Parsa Revelganj Sonpur Taraiya	3,951,862	2,641	1,231
34	ST	Sitamarhi	Dumra, Sitamarhi	Bairgania Bajpatti Bathnaha Belsand Bokhra Choraut Dumra Majorganj Nanpur Parihar Parsauni Pupri Riga Runni Saidpur Sonbarsa Suppi Sursand	3,423,574	2,199	1,214
35	SU	Supaul	Supaul	Basantpur Chhatapur Kishanpur Marauna Nirmali Pipra Pratapganj Raghopur Saraigarh-Bhaptiyahi Supaul Triveniganj	2,229,076	2,410	724
36	SW	Siwan	Siwan	Andar Barharia Basantpur Bhagwanpur Hat Darauli Daraundha Goriakothi Guthani Hasanpura Hussainganj Lakri Nabiganj Maharajganj Mairwa Nautan Panchrukhi Raghunathpur Siswan Siwan Ziradei	3,330,464	2,219	1,221
37	VA	Vaishali	Hajipur	Bhagwanpur Bidupur Chehra Kalan Desari Goraul Hajipur Jandaha Lalganj Mahnar Mahua Patedhi Belsar Patepur Raghopur Rajapakar Sahdei Buzurg Vaishali	3,495,021	2,036	1,332
38	WC	West Champaran	Bettiah	Bagaha Bairia Bettiah Bhitaha Chanpatia Gaunaha Jogapatti Lauriya Nandangarh Madhubani Mainatand Majhaulia Narkatiaganj Nautan Piprasi Ramnagar Sidhaw Sikta Thakrahan	3,935,042	5,229	582

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