Administrative status Tongnan District is part of Chongqing (municipality)[1]. Basic facts Administrative division code: 500152[1] Area: 1,584.33 km²[2] Population: 688,115 (2020)[2] History From 1 January 1912: named “东安县”, until 31 December 1913[2]. From 1 January 1914: named “潼南县”, until 27 April 2015[2].