Siddharthnagar

With 25,59,297 people at the 2011 Census, Siddharthnagar was the 164th most populous of India's 640 districts and the 36th most populous of Uttar Pradesh's 71. That is 1.3% of everyone living in Uttar Pradesh at the time.

Literacy stood at 59.25%, 13.7 points below the national 72.98% — 8.4 points below the Uttar Pradesh average. That ranked it 572nd of 640 districts nationally. The gap between male and female literacy was 23.5 points, 7.3 points above the national gap of 16.3.

The sex ratio was 976 women per 1,000 men (64 above the Uttar Pradesh figure of 912). Among children aged 0–6 the ratio was 935, 17 above the national 918.

Female work participation was 23.4%, 6.6 points above the state figure.

Siddharthnagar contained 8 towns — 6 with a municipal body of some kind, and 2 classed as census towns, meaning they met the census's urban test without having one. The largest was Bansi (NPP), with 41,057 people. That put 6.3% of the district in urban areas, 16.0 points below the Uttar Pradesh share of 22.3%.