Chengzhong District of Liuzhou is densely populated.
Tips
usage
Also the official name of several administrative districts called 城中区 (Chengzhong District), e.g. in Liuzhou and Xining. In everyday speech 城中 just means 'downtown' or 'within the city proper' - contrasted with 城外 or 郊区.
culture
The infamous 城中村 ('village-within-the-city') refers to informal urban villages swallowed up by expanding Chinese megacities - dense, cheap enclaves where migrant workers live cheek-by-jowl.