Shangyu (Chinese: 上虞; pinyin: Shàngyú) is a district of the prefecture-level city of Shaoxing in the northeast of Zhejiang province, China. At the 2010 census, its population in the built-up (or metro) area was 779,412, up from 722,523 in the 2000 census. Shangyu is roughly fifty kilometers from north to south and about thirty kilometers from east to west. It makes up about one-fourth of the area of Shaoxing prefecture.