In the US they happen every ten years as is required by the Constitution. They are instrumental in helping to determine the numbers of representatives that each state will have in Congress.
The census is a questionnaire which is sent to every person living in a country. It is sent out every 10 years and in the US is required by the constitution.
The United Census began in 1790. It was required by the US Constitution and takes place every 10 years. Its purpose is to determine representation in the US House of Representatives.
The US conducts a census every 10 years. The Agricultural Census is conducted every 5 years.
In Article I, Section 2, the US Constitution requires a census every ten years for purposes of apportioning members of the House of Representatives among the various states.
The US Census is every 10 years.
It is required by the U.S. Constitution. One of the important functions it serves is to ensure correct representation for each state in the U.S. House of Representatives.
All
The first Article (section 2) of the US Constitution mandates taking a census once every ten years.
Every 10 years
Article VII of the US Constitution required 9 states to ratify the Constitution for it to be effective.
The government must conduct a nationwide Census of citizens every ten years in The United States according to The US Constitution. The US Census, in part, helps determine the mapping for political districts and the use of Federal government monies.