| District-wise Sex Ratio in Bihar (1991) | |
| (Females Per 1000 Males) | |
| State/States | Sex Ratio |
| Bihar | |
| Araria | |
| Aurangabad | |
| Begusarai | |
| Bhagalpur | |
| Bhojpur | |
| Darbhanga | |
| Deoghar | |
| Dhanbad | |
| Dumka | |
| Gaya | |
| Giridih | |
| Godda | |
| Gopalganj | |
| Gumla | |
| Hazaribag | |
| Jehanabad | |
| Katihar | |
| Khargaria | |
| Kishanganj | |
| Lohardaga | |
| Madhepura | |
| Madhubani | |
| Munger | |
| Muzaffarpur | |
| Nalanda | |
| Nawada | |
| Palamu | |
| Pashchim Champaran | |
| Pashchimi Singhbum | |
| Patna | |
| Purba Champaran | |
| Purbi Singhbhum | |
| Purnia | |
| Ranchi | |
| Rohtas | |
| Saharsa | |
| Sahibganj | |
| Samastipur | |
| Saran | |
| Sitamarhi | |
| Siwan | |
| Vaishali | |
| Total | |
| India | |
