Lankao, part of Kaifeng City, Henan Province, Henan Province, the county directly under the financial management. Located in the northeastern part of Henan Province and the eastern part of Kaifeng City, Lankao County borders with Dongming County and Cao County of Heze City, Shandong Province in the north and east, and is adjacent to Minquan County and Qixian County of Shangqiu City in the southeast and south, and is connected to Xiangfu District in the west, and is separated from the Yellow River by the Yellow River in the northwest and is adjacent to Fengqiu County and Changwang City of Xinxiang City, with a total area of 1116.2 square kilometers. As of October 2021, Lankao County has 3 streets, 8 towns and 5 townships under its jurisdiction.In 2021, Lankao County has a resident population of 764,600 people. The county government is located in the Oilfield Institution Compound. In 1954, Lafeng County, Kaocheng County merged, called Lankao County; in 1983, Kaifeng District was abolished, Lankao County under Kaifeng City; Lankao sweet potatoes, Lankao peanuts, Lankao honeydew melon won the national agricultural product geographical indications registration protection. Lankao is the place where Comrade Jiao Yulu, a good cadre of the Party and a good example of the county party secretary, fought during his lifetime, the birthplace of the spirit of Jiao Yulu, the national garden county, the national model city of double embracing, and the experimental area of inclusive financial reform. In 2022, Lankao County realized a gross regional product of 42.61 billion yuan, a year-on-year growth of 4.5%.