Patna Metropolitan Region (Hindi: पटना महानगरीय क्षेत्र) is an official definition of the metropolitan area surrounding the Bihar capital city Patna in India. It is also known as the Patna metropolitan area, or Patna planning area. It consists of one municipal corporation and five municipal councils of Patna district. The entire region has a estimated population (as of 2011) of 2,874,000 over an area of 1,167.04 km². The Government of Bihar notified this area on 13 August 2014, replacing PRDA area, which included Hajipur in Vaishali district and Sonepur in Saran district.