Jamui

With 17,60,405 people at the 2011 Census, Jamui was the 273rd most populous of India's 640 districts and the 28th most populous of Bihar's 38. That is 1.7% of everyone living in Bihar at the time.

Literacy stood at 59.79%, 13.2 points below the national 72.98% — 2.0 points below the Bihar average. That ranked it 566th of 640 districts nationally. The gap between male and female literacy was 24.0 points, 7.7 points above the national gap of 16.3.

The sex ratio was 922 women per 1,000 men (level with the Bihar figure of 918). Among children aged 0–6 the ratio was 956, 38 above the national 918.

41.3% of the population were recorded as workers, 8.0 points above the Bihar rate. Female work participation was 32.6%, 13.5 points above the state figure.

Jamui contained 5 towns — 2 with a municipal body of some kind, and 3 classed as census towns, meaning they met the census's urban test without having one. The largest was Jamui (Nagar Parishad), with 87,357 people. That put 8.3% of the district in urban areas, 3.0 points below the Bihar share of 11.3%.