
1) Big counting jobs 2) Counts 3) Nationwide household surveys
Found on
https://www.crosswordclues.com/clue/censuses

Enumerations of populations usually recording identities of all persons in every place of residence with age or date of birth, sex, occupation, national origin, language, marital status, income, relation to head of household, information on the dwelling place, education, literacy, health-related data (e.g., permanent disability), etc. The census or...
Found on
http://www.encyclo.co.uk/local/20973
No exact match found.