the united states are the best of all in the states.
Demography requires data. The census provides this data.
A census is the gathering of data from an entire population.
The US Census is every 10 years.
Census
Sources of geographical data include satellites (remote sensing), aerial photography, GIS databases, surveys, field data collection, and crowdsourcing through platforms like OpenStreetMap. These sources provide information on terrain, land cover, infrastructure, demographics, and more for various geographical analyses and applications.
A census is a collection of demographic data for a given area
Census.
information on the census was collected by enternet or by ask, Google,answers.com
The U.S. Census Bureau conducts the national census in the United States. Other countries have their own official departments which collect census data.
census is conducted for group data so if it is a sampling data is taken it would lead to lot of non sampling errors
They are demographic variables.
demographics, census data