Kelan County is subordinate to Xinzhou City, Shanxi Province, located in the southwest of Xinzhou City, Shanxi Province. The geographical coordinates are 111°13'~111°52' east longitude and 38°29'~38°58' north latitude. The total area is 1,984 square kilometers. Belongs to the temperate continental monsoon climate. As of October 2021, Kelan County has jurisdiction over 3 towns and 7 townships. County people's government in Lanyi town. As of midnight on November 1, 2020, Cochran County had a permanent population of 69,324.

During the Yin and Shang dynasties (16th century BC - 11th century BC), it was the territory of Jizhou. In January 2000, after the city, Xinzhou City is a people's government. Kelan County National Road 209 line, provincial road Kelda line through the entire territory, Cangyu, Hubei 2 expressway intersection, the total length of the county highway open to traffic 941.734 kilometers. Kelan County was rated as the national model city (county) of double support, the nominated City of National Civilized City in the establishment cycle of 2021~2023, and the advanced County of National Village Cleaning Action in 2021. The main attractions are Lotus Leaf Ping, bell and drum Tower, satellite base and so on.
In 2021, the GDP of Kelan County was 4.45 billion yuan, an increase of 12.8%.