It depends where you live. In the USA they happen every 10 years, in some others only every 5 years.
Federal census is taken every 10 years. Some regional census polls are taken more often, but the law is for every 10 years.
The US Census is taken every ten years in the years ending in zero.
Every five years
ever 10 years
We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.We don't know how many people Cleopatra ruled. There was no census taken during Cleopatra's reign.
Every ten years with the official United States census.
Every 10 years
In the United States, the census is conducted every 10 years. The next census will be in 2010.
The census in Ireland is typically taken every five years. The most recent census was conducted in 2016, and the next one is scheduled for 2021.
A census would require data to be collected from 54000000 people.
The All India Wild Animal Census is done every four years. The census was last carried out in May 2014.
A Cencus must be taken every 10 years Unknown standard