Kadapa is a city in the southern part of Andhra Pradesh, India. It is located in the Rayalaseema region, and is the district headquarters of YSR Kadapa district. As of the 2022 Census of India, the city had a population of 466,000, a 2.42% increase from 2021. It is located 8 kilometres (5.0 mi) south of the Penna River. The city is surrounded on three sides by the Nallamala and Palkonda Hills lying on the tectonic landscape between the Eastern and Western ghats. Black and Red ferrous soils occupy the region. The city is nicknamed "Gadapa" ('threshold') since it is the gateway from the west to the hills of Tirumala.