Ji County, Shanxi

Under the Zhou, the area of present-day Ji County was part of the territory of Jin. Its principal town Erqu (二屈; Èrqū) was the seat of the appenage given to Duke Xian's son Ji Yiwu, who later became known as Duke Hui.

During the Three Kingdoms Period, the area belonged to the Pingyang Commandery within the Cao Wei.[3]

The area belonged to the Northern Wei Dynasty, undergoing numerous administrative changes during the 5th Century.[3] The area then belonged to the Northern Qi and then the Northern Zhou Dynasty.[3]

The area belonged to the Sui Dynasty upon its establishment in 581 CE, and was incorporated as the Jiyang Commandery (吉阳郡).[3] In 584 CE, the Jiyang Commandery was abolished, and was merged into the newly formed Wencheng Commandery.[3]

During the Republic of China, Ji County was established, and placed under the jurisdiction of Hedong Circuit.[3]

Upon the establishment of the People's Republic of China in 1949, the area was placed under the Linfen Prefecture, which was renamed to the Jinnan Prefecture in 1954.[3] The Jinnan Prefecture was abolished in 1970, and Ji County fell under the jurisdiction of the newly-formed Linfen Prefecture.[3]

In 2000, the Linfen Prefecture was changed to the prefecture-level city of Linfen.[3]

The county spans approximately 1,780 square kilometers in area, bordering Yaodu District and Pu County to its east, Xiangning County to its south, Yichuan County to its west, and Daning County to its north.[1]

The county is located at the southern end of the Lüliang Mountains.[1] The Yellow River flows through Ji County, as well as the Qingshui River (清水河), and the Xinshui River.[1] The county is home to the Hukou Waterfall.[1]

Ji County is divided into three towns and five townships.[2][1] The county government is seated in the town of Jichang.[1]

The county's three towns are Jichang, Tunli, and Hukou.[2][1]

The county's five townships are Checheng Township, Wencheng Township, Dongcheng Township, Baishansi Township, and Zhongduo Township.[2][1]