CENSUS – official listing or counting of persons; the Federal Census has been taken every 10 years since 1790; there also are state censuses in some states which may have been taken every 5 to 10 years
Merriam-Webster Online Dictionary
census (noun)1.
a count of the population and a property evaluation in early Rome
2.
a usually complete enumeration of a population , specifically a periodic governmental enumeration of population
3.
- count tally