Census can be classified as

Census can be classified as "de facto and de jure". De facto census refers to the actual count of the population residing in a particular area at the time of the census. This means that everyone present in the area, including visitors and tourists, is included in the count. De jure census, on the other hand, refers to the count of the population based on their legal place of residence, regardless of whether they are present in that area during the census or not. This means that people who are temporarily away from their legal place of residence, such as students or military personnel, are still included in the count for their legal place of residence. In summary, a census is a way to count the population, and it can be classified as de facto or de jure based on whether it counts all people present at the time of the census or just those who legally reside in the area being counted.