Dongguang County (simplified Chinese: 东光县; traditional Chinese: 東光縣; pinyin: Dōngguāng Xiàn; literally: "eastern brightness") is a county under the jurisdiction of Cangzhou City, in southeastern Hebei province, People's Republic of China, bordering Shandong to the southeast.Area is 710 km2 (270 sq mi) and population is 350,000. China National Highway 105 and G2 Beijing–Shanghai Expressway both pass through the county.