The Chinese collection has two main categaries of census data: Population census (人口普查) and Basic Unit census (基本单位普查). An easy way to find census data is through the Library's online catalog:

1. Perform a 'Subject begins with...' search on 'China Population' or 'China Census' to find most population census data;
2. Perform a "Subject begins with ..." search on 'Danwei' or 'social structure China' and choose 'statistics' to find basic unit census. Click on one of the following links, search and/or ask the librarian:

Population Census 人口普查

Example:

1. Zhongguo 2000 nian ren kou pu cha zi liao /中国2000年人口普查资料 | East Asian Collection | HA4635 .Z44 2002
   
2. 2000 nian ren kou pu cha Zhongguo min zu ren kou zi liao2000年人口普查中国民族人口资料 = Tabulation on nationalities of 2000 population census of China | East Asian Collection | HB3654.A3 Z46 2003 
   
3. Zhonghua Minguo ba shi jiu nian Tai Min di qu hu kou ji zhu zhai pu cha chu bu zong he bao gao 中華民國八十九年臺閩地區戶口及住宅普查初步綜合報告 | East Asian Collection | HA4646.5 2000

Basic Units Census 基本单位普查

Example: 

1. Zhonghua Renmin Gongheguo di yi ci quan guo ji ben dan wei pu cha zi liao hui bian, 1996 /中华人民共和国第一次全國基本单位普查资料汇编, 1996 / = The first basic units census of China : results for the mainland of China
   East Asian Collection | HA4641 1996 .J5 1998 
   
2. Zhongguo di 2 ci ji ben dan wei pu cha zi liao hui bian /中国第二次基本单位普查资料汇编
   East Asian Collection | HM706 .Z466 2003