Xicheng District (simplified Chinese: 西城区; traditional Chinese: 西城區; pinyin: Xīchéng Qū, lit. "West City District") is a district of Beijing. Xicheng District spans 32 square kilometres (12 sq mi), making it the largest portion of the old city (inside the 2nd Ring Road), and has 706,691 inhabitants (2000 Census). Its postal code is 100032. Xicheng is subdivided into 15 subdistricts of the city proper of Beijing. The former Xuanwu District was merged into Xicheng on July 2010.