Yanjin County, part of Xinxiang City, Henan Province, is located in the north of Henan Province, on the north bank of the Yellow River, at 35°10′ north latitude and 114°36′ east longitude, with a total area of 886 square kilometers. As of October 2022, Yanjin County has 3 streets, 4 towns, and 6 townships under its jurisdiction.In 2022, Yanjin County had a resident population of 442,800 people. The county people's government is located in Wenyan Street.
Summer divided into nine states, Yanjin belongs to Yuzhou. 1985, the withdrawal of land to set up cities, Yanjin belongs to Xinxiang City. It has a warm temperate continental monsoon climate with four distinct seasons, cold winter and hot summer, cool fall and early spring. Close to Beijing-Hong Kong-Macao Expressway, National Highway 107, Beijing-Guangzhou Railway and Beijing-Guangzhou High-speed Railway, south of the Longhai Railway, Xinhe Railway and Jidong Expressway cross the whole territory, seven provincial highways intersect in the territory, which is one of the counties with the highest density of highway network in Henan Province. It is one of the counties with the highest density of highway network in Henan Province. It is also a national agricultural product quality and safety county, a national high-quality wheat production base, and a main production base county of grain and cotton in China. The main attractions in the territory include the Yellow River Road Forest Park, the tomb of Chen Yucheng, the Ying King of the Taiping Heavenly Kingdom, and the Wanshou Pagoda, a provincial cultural relic.
In 2022, Yanjin County's gross regional product was 17.946 billion yuan, an increase of 6.0%. Among them, the added value of primary industry is 3.432 billion yuan, the added value of secondary industry is 6.063 billion yuan; the added value of tertiary industry is 8.451 billion yuan, and the structure of the three industries is 1.913:33.78:47.09.