chittoor district (), is a district in rayalaseema region of the indian state of andhra pradesh. the district headquarters is located at chittoor. it has a population of 4,170,468 according to 2011 census of india. chittoor district has many major temples including tirupati and kanipakam and temples. it lies in the poini river valley of southernmost andhra pradesh along the chennai – bangalore section chennai-mumbai highway. it is a major market centre for mangoes, grains, sugarcane, and peanuts.