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Bihar Population
Estimated population in 2025
| Estimated population of Bihar in 2025 | 128,500,364 |
| Estimated population of males in 2025 | 66,997,061 |
| Estimated population of females in 2025 | 61,503,302 |
Population as per 2011 census
| Population | 104,099,452 |
| Male Population | 54,275,001 |
| Female Population | 49,824,451 |
| % of Male' Population | 52.14% |
| % of Female' Population | 47.86% |
| % of India' Population | 8.60% |
| Sex Ratio | 918 |
| Child Sex Ratio | 935 |
| Density/km2 | 1,106 |
| Density/mi2 | 2,863 |
| Area (km2) | 94,163 |
| Area (mi2) | 36,357 |
| Child Population (0-6 Age) | 19,133,964 |
| Boys Population (0-6 Age) | 9,887,239 |
| Girls Population (0-6 Age) | 9,246,725 |
| Literacy | 61.80% |
| Male Literacy | 71.21% |
| Female Literacy | 51.50% |
| Total Literates | 52,504,553 |
| Male Literates | 31,608,023 |
| Female Literates | 20,896,530 |
| Population Rural | 92,341,436 |
| Population Rural Percentage | 88.71% |
| Population Urban | 11,758,016 |
| Population Urban Percentage | 11.29% |
Bihar Religious Data
| Description | Population in 2020 |
Percentage |
Estimated Population in 2025 |
|---|---|---|---|
| Hindus | 86,078,686 |
82.69% |
106,255,530 |
| Muslims | 17,557,809 |
16.87% |
21,673,359 |
| Christians | 129,247 |
0.12% |
159,542 |
| Sikhs | 23,779 |
0.02% |
29,353 |
| Buddhists | 25,453 |
0.02% |
31,419 |
| Jains | 18,914 |
0.02% |
23,347 |
| Not Stated | 252,127 |
0.24% |
311,226 |
| Others | 13,437 |
0.01% |
16,587 |
| Total | 104,099,452 |
100.00% |
128,500,364 |
Bihar Population Facts
| Description | Districts | As per 2011 census |
|---|---|---|
| Most Populous District | Patna | 5,838,465 |
| Least Populous District | Sheikhpura | 636,342 |
| District with Highest Sex Ratio | Gopalganj | 1,021 |
| District with Lowest Sex Ratio | Munger | 876 |
| District with Highest Literacy Rate | Rohtas | 73.37% |
| District with Lowest Literacy Rate | Purnia | 51.08% |
| District with Highest Population Density | Sheohar | 1,882 |
| District with Lowest Population Density | Kaimur | 488 |
District-wise Population
| S.No. | District Name | As per 2011 census |
Estimated Population in 2025 |
|---|---|---|---|
| 1. | Araria | 2,811,569 |
3,470,601 |
| 2. | Arwal | 700,843 |
865,121 |
| 3. | Aurangabad | 2,540,073 |
3,135,466 |
| 4. | Banka | 2,034,763 |
2,511,711 |
| 5. | Begusarai | 2,970,541 |
3,666,836 |
| 6. | Bhagalpur | 3,037,766 |
3,749,818 |
| 7. | Bhojpur | 2,728,407 |
3,367,946 |
| 8. | Buxar | 1,706,352 |
2,106,321 |
| 9. | Darbhanga | 3,937,385 |
4,860,308 |
| 10. | Gaya | 4,391,418 |
5,420,766 |
| 11. | Gopalganj | 2,562,012 |
3,162,548 |
| 12. | Jamui | 1,760,405 |
2,173,044 |
| 13. | Jehanabad | 1,125,313 |
1,389,086 |
| 14. | Kaimur | 1,626,384 |
2,007,608 |
| 15. | Katihar | 3,071,029 |
3,790,878 |
| 16. | Khagaria | 1,666,886 |
2,057,604 |
| 17. | Kishanganj | 1,690,400 |
2,086,630 |
| 18. | Lakhisarai | 1,000,912 |
1,235,526 |
| 19. | Madhepura | 2,001,762 |
2,470,975 |
| 20. | Madhubani | 4,487,379 |
5,539,221 |
| 21. | Munger | 1,367,765 |
1,688,369 |
| 22. | Muzaffarpur | 4,801,062 |
5,926,431 |
| 23. | Nalanda | 2,877,653 |
3,552,175 |
| 24. | Nawada | 2,219,146 |
2,739,314 |
| 25. | Pashchim Champaran | 3,935,042 |
4,857,416 |
| 26. | Patna | 5,838,465 |
7,207,001 |
| 27. | Purbi Champaran | 5,099,371 |
6,294,664 |
| 28. | Purnia | 3,264,619 |
4,029,846 |
| 29. | Rohtas | 2,959,918 |
3,653,723 |
| 30. | Saharsa | 1,900,661 |
2,346,176 |
| 31. | Samastipur | 4,261,566 |
5,260,477 |
| 32. | Saran | 3,951,862 |
4,878,178 |
| 33. | Sheikhpura | 636,342 |
785,501 |
| 34. | Sheohar | 656,246 |
810,070 |
| 35. | Sitamarhi | 3,423,574 |
4,226,060 |
| 36. | Siwan | 3,330,464 |
4,111,125 |
| 37. | Supaul | 2,229,076 |
2,751,571 |
| 38. | Vaishali | 3,495,021 |
4,314,254 |
City-wise Population
| S.No. | City Name | As per 2011 census |
Estimated Population in 2025 |
|---|---|---|---|
| 1. | Arrah | 261,430 |
322,709 |
| 2. | Aurangabad | 102,244 |
126,210 |
| 3. | Bagaha | 112,634 |
139,035 |
| 4. | Begusarai | 252,008 |
311,079 |
| 5. | Bettiah | 132,209 |
163,199 |
| 6. | Bhagalpur | 400,146 |
493,940 |
| 7. | Biharsharif | 297,268 |
366,948 |
| 8. | Buxar | 102,861 |
126,972 |
| 9. | Chapra | 202,352 |
249,783 |
| 10. | Darbhanga | 296,039 |
365,431 |
| 11. | Dehri | 137,231 |
169,398 |
| 12. | Dinapur Nizamat | 182,429 |
225,190 |
| 13. | Gaya | 468,614 |
578,457 |
| 14. | Hajipur | 147,688 |
182,306 |
| 15. | Jamalpur | 105,434 |
130,148 |
| 16. | Jehanabad | 103,202 |
127,393 |
| 17. | Katihar | 226,261 |
279,297 |
| 18. | Kishanganj | 105,782 |
130,577 |
| 19. | Motihari | 126,158 |
155,729 |
| 20. | Munger | 213,303 |
263,301 |
| 21. | Muzaffarpur | 354,462 |
437,548 |
| 22. | Patna | 1,684,222 |
2,079,004 |
| 23. | Purnia | 282,248 |
348,407 |
| 24. | Saharsa | 156,540 |
193,233 |
| 25. | Sasaram | 147,408 |
181,960 |
| 26. | Siwan | 135,066 |
166,725 |