First-level division
🇮🇳 Bihar
State of Bihar
Subdivisions
Patna district
Population 5,838,465
Purba Champaran District
Population 5,099,371
Muzaffarpur district
Population 4,801,062
Madhubani
Population 4,487,379
Gaya District
Population 4,391,418
Samastipur
Population 4,261,566
Sáran District
Population 3,951,862
Darbhanga district
Population 3,937,385
Pashchim Champaran
Population 3,935,042
Vaishali
Population 3,495,021
Sītāmarhi District
Population 3,423,574
Siwan
Population 3,330,464
Purnia
Population 3,264,619
Katihar
Population 3,071,029
Bhāgalpur District
Population 3,037,766
Begusarai
Population 2,970,541
Rohtas District
Population 2,959,918
Nalanda
Population 2,877,653
Araria
Population 2,811,569
Bhojpur
Population 2,728,407
Gopalganj
Population 2,562,012
Aurangabad
Population 2,540,073
Supaul
Population 2,229,076
Nawada District
Population 2,219,146
Banka
Population 2,034,763
Madhepura
Population 2,001,762
Saharsa
Population 1,900,661
Jamui
Population 1,760,405
Buxar
Population 1,706,352
Kishanganj
Population 1,690,400
Khagaria
Population 1,666,886
Kaimur (Bhabua)
Population 1,626,384
Munger District
Population 1,367,765
Jehanabad
Population 1,125,313
Lakhisarai
Population 1,000,912
Sheohar District
Population 656,246
Sheikhpura
Population 636,342
Arwal