Anxin (Chinese: 安新; pinyin: Ānxīn) is a county in central Hebei province, China. It is under the jurisdiction of Baoding City, the centre of which lies about 40 km (25 mi) to the west, and as of 2006, it has a population of 420,000 residing in an area of 726 km2 (280 sq mi). Most of Baiyang Lake is located in the county.