Siwan Population
Estimated population in 2025
| Estimated population of Siwan in 2025 | 4,111,125 |
| Estimated population of males in 2025 | 2,067,731 |
| Estimated population of males in 2025 | 2,043,394 |
Population as per 2011 census
| Population | 3,330,464 |
| Male Population | 1,675,090 |
| Female Population | 1,655,374 |
| Area (km2) | 2,219 |
| Density/km2 | 1,501 |
| Sex Ratio (Per 1000) | 988 |
| Child Sex Ratio (0-6 Age) | 940 |
| Literates | 1,930,175 |
| Male Literates | 1,115,906 |
| Female Literates | 814,269 |
| Average Literacy | 69.45% |
| Male Literacy | 80.23% |
| Female Literacy | 58.66% |
| Child Population (0-6 Age) | 551,418 |
| Boys Population (0-6 Age) | 284,188 |
| Girls Population (0-6 Age) | 267,230 |
| Child Proportion (0-6 Age) | 16.56% |
| Boys Proportion (0-6 Age) | 16.97% |
| Girls Proportion (0-6 Age) | 16.14% |
Siwan Religion-wise Data
| Description | Population in 2011 | Percentage | Estimated Population in 2025 |
|---|---|---|---|
| Hindu | 2,712,635 |
81.45% |
3,348,477 |
| Muslims | 608,282 |
18.26% |
750,863 |
| Christian | 2,618 |
0.08% |
3,232 |
| Sikh | 369 |
0.01% |
455 |
| Buddhist | 407 |
0.01% |
502 |
| Jain | 359 |
0.01% |
443 |
| Not Stated | 5,708 |
0.17% |
7,046 |
| Others | 86 |
0.00% |
106 |
| Total | 3,330,464 |
100.00% |
4,111,125 |
City/Metros in Siwan District
| City Name | Population in 2011 | Estimated Population in 2025 |
|---|---|---|
| Siwan (Nagar Parishad) | 135,066 | 166,725 |