| District-wise Geographical Area (Total/Rural/Urban) in Bihar (As per 2001 Census) | |
| District | Area in sq. km. |
| Vaishali | |
| Total | |
| Rural | |
| Urban | |
| Supaul | |
| Total | |
| Rural | |
| Urban | |
| Siwan | |
| Total | |
| Rural | |
| Urban | |
| Sitamarhi | |
| Total | |
| Rural | |
| Urban | |
| Sheohar | |
| Total | |
| Rural | |
| Urban | |
| Sheikhpura | |
| Total | |
| Rural | |
| Urban | |
| Saran | |
| Total | |
| Rural | |
| Urban | |
| Samastipur | |
| Total | |
| Rural | |
| Urban | |
| Saharsa | |
| Total | |
| Rural | |
| Urban | |
| Rohtas | |
| Total | |
| Rural | |
| Urban | |
| Purnia | |
| Total | |
| Rural | |
| Urban | |
| East / Purba Champaran | |
| Total | |
| Rural | |
| Urban | |
| Patna | |
| Total | |
| Rural | |
| Urban | |
| West / Pashchim Champaran | |
| Total | |
| Rural | |
| Urban | |
| Nawada | |
| Total | |
| Rural | |
| Urban | |
| Nalanda | |
| Total | |
| Rural | |
| Urban | |
| Muzaffarpur | |
| Total | |
| Rural | |
| Urban | |
| Munger | |
| Total | |
| Rural | |
| Urban | |
| Madhubani | |
| Total | |
| Rural | |
| Urban | |
| Madhepura | |
| Total | |
| Rural | |
| Urban | |
| Lakhisarai | |
| Total | |
| Rural | |
| Urban | |
| Kishanganj | |
| Total | |
| Rural | |
| Urban | |
| Khagaria | |
| Total | |
| Rural | |
| Urban | |
| Katihar | |
| Total | |
| Rural | |
| Urban | |
| Kaimur - Bhabua | |
| Total | |
| Rural | |
| Urban | |
| Jehanabad | |
| Total | |
| Rural | |
| Urban | |
| Jamui | |
| Total | |
| Rural | |
| Urban | |
| Gopalganj | |
| Total | |
| Rural | |
| Urban | |
| Gaya | |
| Total | |
| Rural | |
| Urban | |
| Darbhanga | |
| Total | |
| Rural | |
| Urban | |
| Buxar | |
| Total | |
| Rural | |
| Urban | |
| Bhojpur | |
| Total | |
| Rural | |
| Urban | |
| Bhagalpur | |
| Total | |
| Rural | |
| Urban | |
| Begusarai | |
| Total | |
| Rural | |
| Urban | |
| Banka | |
| Total | |
| Rural | |
| Urban | |
| Aurangabad | |
| Total | |
| Rural | |
| Urban | |
| Araria | |
| Total | |
| Rural | |
| Urban | |
| Bihar | |
| Total | |
| Rural | |
| Urban | |
