How do you say census in Chinese?
— 人口普查; 人口普查

Generic synonyms for census in Chinese
count數, 数 (shǔ), 計數, 计数 (jìshù), 計算, 计算 (jìsuàn), 算 (suàn), 點, 点 (diǎn)
number數, 数 (shù), 數目, 数目 (shùmù), 數字, 数字 (shùzì)