| Araria | 2,829 | 2,811,569 | Araria |
| Arwal | 637 | 699,000 | Arwal |
| Aurangabad | 3,303 | 2,540,073 | Aurangabad |
| Banka | 3,018 | 2,034,763 | Banka |
| Begusarai | 1,917 | 2,970,541 | Begusarai |
| Bhagalpur | 2,569 | 3,037,766 | Bhagalpur |
| Bhojpur | 2,473 | 2,728,407 | Arrah |
| Buxar | 1,624 | 1,706,352 | Buxar |
| Darbhanga | 2,278 | 3,937,385 | Darbhanga |
| East Champaran | 3,969 | 5,099,371 | Motihari |
| Gaya | 4,978 | 4,391,418 | Gaya |
| Gopalganj | 2,033 | 2,562,012 | Gopalganj |
| Jamui | 3,099 | 1,760,405 | Jamui |
| Jehanabad | 1,569 | 1,125,313 | Jehanabad |
| Kaimur | 3,363 | 1,626,384 | Bhabua |
| Katihar | 3,056 | 3,071,029 | Katihar |
| Khagaria | 1,486 | 1,666,886 | Khagaria |
| Kishanganj | 1,884 | 1,690,400 | Kishanganj |
| Lakhisarai | 1,229 | 1,000,912 | Lakhisarai |
| Madhepura | 1,787 | 2,001,762 | Madhepura |
| Madhubani | 3,501 | 4,487,379 | Madhubani |
| Munger | 1,419 | 1,367,765 | Munger |
| Muzaffarpur | 3,173 | 4,801,062 | Muzaffarpur |
| Nalanda | 2,354 | 2,877,653 | Bihar Sharif |
| Nawada | 2,492 | 2,219,146 | Nawada |
| Patna | 3,202 | 5,838,465 | Patna |
| Purnia | 3,228 | 3,264,619 | Purnia |
| Rohtas | 3,850 | 2,959,918 | Sasaram |
| Saharsa | 1,702 | 1,900,661 | Saharsa |
| Samastipur | 2,905 | 4,261,566 | Samastipur |
| Saran | 2,641 | 3,951,862 | Chhapra |
| Sheikhpura | 689 | 634,927 | Sheikhpura |
| Sheohar | 443 | 656,916 | Sheohar |
| Sitamarhi | 2,199 | 3,423,574 | Dumra,Sitamarhi |
| Siwan | 2,219 | 3,330,464 | Siwan |
| Supaul | 2,410 | 2,229,076 | Supaul |
| Vaishali | 2,036 | 3,495,021 | Hajipur |
| West Champaran | 5,229 | 3,935,042 | Bettiah |
