Demographics of Bihar Districts wise 
 District 
  
 Demographics 
 http://gov.bih.nic.in/Profile/Annexure-01.htm Population Distribution, Percentage Decadal Growth Rate, Sex-Ratio and Population Density

| Districts_of_Bihar | Total_Population_2001 | Male_Population_2001 | Female_Population_2001 | Growth_Rate_1981_91 | Growth_Rate_1991_01 | Sex_Ratio_1991 | Sex_Ratio_2001 | Population_density_1991 | Population_density_2001 |
|---|---|---|---|---|---|---|---|---|---|
| Kaimur | 1284575 | 673556 | 611019 | 24.20 | 30.64 | 884 | 907 | 292 | 382 |
| Rohtas | 2448762 | 1282655 | 1166107 | 21.77 | 27.71 | 894 | 909 | 498 | 636 |
| Jehanabad | 1511406 | 783960 | 727446 | 19.43 | 28.64 | 919 | 928 | 749 | 963 |
| Aurangabad | 2004960 | 1035757 | 969203 | 24.49 | 30.19 | 915 | 936 | 466 | 607 |
| Gaya | 3464983 | 1789231 | 1675752 | 23.92 | 30.03 | 922 | 937 | 536 | 696 |
| Nawada | 1809425 | 928638 | 880787 | 23.70 | 33.08 | 936 | 948 | 545 | 726 |