 The demonym for residents of Kolkata are Calcuttan and Kolkatan. According to provisional results of the 2011 national census, Kolkata district, which occupies an area of 185 km2 (71 sq mi), had a population of 4,486,679; its population density was 24,252 / km2 (62,810 / sq mi). This represents a decline of 1.88 % during the decade 2001 – 11. The sex ratio is 899 females per 1000 males — lower than the national average. The ratio is depressed by the influx of working males from surrounding rural areas, from the rest of West Bengal, and from neighbouring states, mainly Bihar, Uttar Pradesh, and Orissa; these men commonly leave their families behind. Kolkata's literacy rate of 87.14 % exceeds the all-India average of 74 %. The final population totals of census 2011 stated the population of city as 4,496,694. The urban agglomeration had a population of 14,112,536 in 2011.
