Zhenlai County is a county located in the northwestern region of Jilin Province, China. It occupies the northernmost portion of the province and serves as a border area, situated adjacent to Heilongjiang Province to the east and Inner Mongolia to the west.
The county falls under the administration of the prefecture-level city of Baicheng. It covers a total land area of 5,389 square kilometers (2,081 square miles) and has a recorded population of approximately 310,000 residents.