According to the 2011 census Allahabad District has a population of 5,959,798, roughly equal to the nation of Eritrea or the US state of Missouri. This gives it a ranking of 13th in India (out of a total of 640). As of 2011 it is the most populous district of Uttar Pradesh (out of 71). The district has a population density of . Its population growth rate over the decade 2001-2011 was 20.74%.