Ji County, subordinate to Linfen City of Shanxi Province, is located at 110°26'28" -- 111°07'21" east longitude and 35°53'13" -- 36°21'03" north latitude. It is located on the east bank of the middle reaches of the Yellow River, southwest of Shanxi Province and west of Linfen City. It borders Pu County and Yaodong District in the east, Xiangning County in the south, and Yichuan County of Shaanxi Province across the Yellow River in the west. Daning County is adjacent to the north, with a total area of 1777 square kilometers. According to the seventh census data, as of midnight on November 1, 2020, the permanent population of Jixian county was 87,374. As of May 2021, Ji County has jurisdiction over 3 towns and 4 townships, with the county government based in Jichang Town.

Shang Ancestor Yi, belongs to Geng land. In the Western Zhou Dynasty, Zhai Cheng was called. The first year of the Republic of China (1912), waste state, became Ji County. In October 2000, the city of Linfen. Jixian County is located in the west of Linfen City, a temperate continental monsoon climate, the river is the Yellow River basin, the main natural disasters are hail, drought, low temperature, frost and so on.

In 2019, the GDP of Jixian County reached 229.3.7 million yuan, an increase of 4.7% over the previous year. The proportion of tertiary industries was 30.7:30.8:38.5. Per capita GDP was 20,721 yuan, up 6 percent, reaching 3,003.7 U.S. dollars based on the 2019 average exchange rate. The total fiscal revenue of the county has reached 331.15 million yuan, an increase of 6.5% over the previous year. The county's public finance budget revenue reached 138.25 million yuan, an increase of 10.1%. The annual tax revenue of the county was 28.055 million yuan, up 7.6%. The per capita disposable income of residents was 11,408 yuan, up by 11.7 percent. The per capita disposable income of rural residents was 6,426 yuan, up by 14.7%; The per capita disposable income of urban residents was 22,572 yuan, up by 6.8 percent. The average salary of employees at the end of the year was 58,097 yuan. In 2020, China's GDP reached 2.405 million yuan, an increase of 3.6 percent over the previous year. Among them, the primary industry achieved 836.27 million yuan, a year-on-year growth of 5%; The secondary industry completed 716.91 million yuan, up 7% year on year; The tertiary industry was 852.31 million yuan, down 0.8 percent year on year.