Zezhou County, located in Jincheng City, Shanxi Province, was originally a suburb of Jincheng City, and was renamed its current name in 1996. It is located in the southeast of Shanxi Province and the southern part of Taihang Mountain, at the junction of Shanxi and Henan provinces. Since ancient times, it has been the main thrust of the Three Jin Dynasties leading to the Central Plains. According to the seventh census, as of midnight on November 1, 2020, the permanent population of Zezhou County was 414,999.

Zezhou County of Jincheng City, Shanxi Province, surrounds the urban area of Jincheng City, borders Gaoping City of Jincheng City in the north, Lingchuan County of Jincheng City in the east, Yangcheng and Qinshui County of Jincheng City in the west, and Jiyuan and Jiaozuo of Henan Province in the south. It is 62.75 kilometers wide from east to west and 58.85 kilometers long from north to south, with a total area of 2023 square kilometers and an area of 725,000 mu of cultivated land, accounting for about 1.2% of the total area of Shanxi. It has jurisdiction over 16 towns and 434 village committees.

In 2020, the GDP of Zezhou County reached 30.05 billion yuan, with a year-on-year growth of 6.3%.
Zezhou County, Jincheng City, Shanxi Province, is crisscrossed by rivers, the main rivers are Qin River and Dan River. Zezhou County is one of the earliest areas of human development in China, with a long history.
Guze Prefecture refers to the entire territory of Jincheng City, Shanxi Province. For details, please refer to the entry of Zezhou. (Zezhou and Zezhou county are two different concepts.