Nanyang Commandery was established by Qin in the 35th year of King Zhao (272 BC).
In the Western Han dynasty, the commandery consisted of 36 counties: Wan, Chou (犨), Duyan (杜衍), Zan (酇), Yuyang (育陽), Boshan (博山), Nieyang (涅陽), Yin (陰), Duyang (堵陽), Zhi (雉), Shandu (山都), Caiyang (蔡陽), Xinye (新野), Zhuyang (筑陽), Jiyang (棘陽), Wudang (武當), Wuyin (舞陰), Xi'e (西鄂), Rang (穰), Li (酈), Anzhong (安眾), Guanjun (冠軍), Biyang (比陽), Pingshi (平氏), Sui (隨), She (葉), Deng (鄧), Chaoyang (朝陽), Luyang (魯陽), Chongling (舂陵), Xindu (新都), Huyang (湖陽), Hongyang (紅陽), Lecheng (樂成), Bowang (博望), and Fuyang (復陽).
By the time when Jin dynasty reunited China (280 AD), the number of counties in Nanyang had been reduced to 14, namely Wan, Xi'e, Zhi, Luyang, Chou, Yuyang, Bowang, Duyang, She, Wuyin, Biyang, Nieyang, Guanjun and Li.
[4] In Liu Song dynasty, only 7 counties remained in the commandery, while the population had decreased further to 38,132 individuals in 4,727 households by mid-5th century.
[5] In Sui and Tang dynasties, Nanyang Commandery became an alternative name of Deng Prefecture in the same region.