The initial provisional data released by Census India 2011, shows that the density of Arrah for 2011 is 5330 people per sq. km. Arrah city administers area is 49 sq. km
LITERACY RATE
The average literacy rate of Arrah City in 2011 was 83.41%. If things are looked at gender-wise, male and female literacy was 89.14 % and 76.86 %. respectively. The total literate in Arrah city was 189,080 of which 107,822 are males while 81,258 are females.
SEX RATIO
With regards to the Sex Ratio in Arrah, it stood at 874 per 1000 males. The average national sex ratio in India is 940 as per the latest reports of the Census 2011 Directorate. In the 2011 census, the child sex ratio is 875 girls per 1000 boys
CHILD POPULATION
In census enumeration, data regarding children under 0-6 age were also collected. There were a total of 34,419 children under the age of 0-6 years. Of the total 18,356 are boys while 16,063 are girls. The child Sex Ratio as per the census 2011 was 875. In 2011, Children under 0-6 formed 13.18 % of the total population of Arrah City.