Xinglong County (simplified Chinese: 兴隆县; traditional Chinese: 興隆縣; pinyin: Xīnglóng Xiàn) is a county of northeastern Hebei, China, bordering Beijing Municipality to the west. It is under the administration of Chengde City, with a population of 320,000 residing in an area of 3,116 km2 (1,203 sq mi).