According to the 2011 census Kurnool district has a population of 4,046,601, roughly equal to the nation of Liberia or the US state of Oregon. This gives it a ranking of 54th in India (out of a total of 640). The district has a population density of . Its population growth rate over the decade 2001-2011 was 14.65%. Kurnool has a sex ratio of 984 females for every 1000 males, and a literacy rate of 61.13%.