Code

District

Headquarters

Population (2011)

Area (km²)

Density(2011) (/km²)

Official website

AR

Araria

Araria

2,806,200

2,829

992

http://araria.bih.nic.in

AR

Arwal

Arwal

699,563

4,839

1099

http://arwal.bih.nic.in/

AU

Aurangabad

Aurangabad

2,511,243

3,303

760

http://aurangabad.bih.nic.in

BA

Banka

Banka

2,029,339

3,018

672

http://banka.bih.nic.in

BE

Begusarai

Begusarai

2,954,367

1,917

1,540

http://begusarai.bih.nic.in

BG

Bhagalpur

Bhagalpur

3,032,226

2,569

1,180

http://bhagalpur.bih.nic.in

BJ

Bhojpur

Arrah

2,720,155

2,473

1,136

http://bhojpur.bih.nic.in

BU

Buxar

Buxar

1,707,643

1,624

1,003

http://buxar.bih.nic.in

DA

Darbhanga

Darbhanga

3,921,971

2,278

1,721

http://darbhanga.bih.nic.in

EC

East Champaran

Motihari

5,082,868

3,969

1281

http://eastchamparan.bih.nic.in

GA

Gaya

Gaya

4,379,383

4,978

880

http://gaya.bih.nic.in

GO

Gopalganj

Gopalganj

2,558,037

2,033

1,258

http://gopalganj.bih.nic.in

JA

Jamui

Jamui

1,756,078

3,099

567

http://jamui.bih.nic.in

JE

Jehanabad

Jehanabad

1,124,176

1,569

1206

http://Jehanabad.bih.nic.in

KH

Khagaria

Khagaria

1,657,599

1,486

1,115

http://khagaria.bih.nic.in

KI

Kishanganj

Kishanganj

1,690,948

1,884

898

http://kishanganj.bih.nic.in

KM

Kaimur

Bhabua

1,626,900

3,363

488

http://kaimur.bih.nic.in

KT

Katihar

Katihar

3,068,149

3,056

1004

http://katihar.bih.nic.in

LA

Lakhisarai

Lakhisarai

1,000,717

1,229

815

http://lakhisarai.bih.nic.in

MB

Madhubani

Madhubani

4,476,044

3,501

1,279

http://madhubani.bih.nic.in

MG

Munger

Munger

1,359,054

1,419

958

http://munger.bih.nic.in

MP

Madhepura

Madhepura

1,994,618

1,787

1116

http://madhepura.bih.nic.in

MZ

Muzaffarpur

Muzaffarpur

4,778,610

3,173

1,506

http://muzaffarpur.bih.nic.in

NL

Nalanda

Bihar Sharif

2,872,523

2,354

1,220

http://nalanda.bih.nic.in

NW

Nawada

Nawada

2,216,653

2,492

889

http://nawada.bih.nic.in

PA

Patna

Patna

5,772,804

3,202

1,803

http://patna.bih.nic.in

PU

Purnia

Purnia

3,273,127

3,228

1014

http://purnia.bih.nic.in

RO

Rohtas

Sasaram

2,962,593

3,850

763

http://rohtas.bih.nic.in

SH

Saharsa

Saharsa

1,897,102

1,702

1125

http://saharsa.bih.nic.in

SM

Samastipur

Samastipur

4,254,782

2,905

1,465

http://samastipur.bih.nic.in

SO

Sheohar

Sheohar

656,916

443

1,882

http://sheohar.bih.nic.in

SP

Sheikhpura

Sheikhpura

634,927

689

922

http://sheikhpura.bih.nic.in

SR

Saran

Chhapra

3,943,098

2,641

1,493

http://saran.bih.nic.in

ST

Sitamarhi

Sitamarhi

3,419,622

2,199

1,491

http://sitamarhi.bih.nic.in

SU

Supaul

Supaul

2,228,397

2,410

919

http://supaul.bih.nic.in

SW

Siwan

Siwan

3,318,176

2,219

1,495

http://siwan.bih.nic.in

VA

Vaishali(Akshay)

Hajipur

3,495,249

2,036

1,717

http://vaishali.bih.nic.in

WC

West Champaran

Bettiah

3,922,780

5,229

750

http://westchamparan.bih.nic.in