Tangxian has jurisdiction over 345 administrative villages in 7 towns and 20 townships: Renhou Town, Wangjing Town, Gaochang Town, Beiluo Town, Baihe Town, Juncheng Town, Li Chuan Town, Changgu Town and Country, Duting Town, Nandiantou Town, Beidiantou Town, Luo Zhuang Town, Hail Town, Dayang Town, Micheng Town and Country, Qijiazuo Town and Yangjiao Town.
Among them, Juncheng Town, Li Chuan Town, Beidiantou Township, Micheng Town, Qijiazuo Township, Yangjiao Township, Shimen Township, Huangshikou Township and Daomaguan Township belong to the deep mountain area; Beidiantou Township, Baihe Town, Haishui Town and Dayang Township belong to small mountainous areas.