In the 2010 decennial census, the Census Bureau will attempt to count the total population of the United States. This includes, as in previous censuses, all U.S. citizens, lawfully present aliens, and unauthorized aliens. Some have suggested excluding aliens, particularly those who are in the country unlawfully, from the census count, in part so that they would not be included in the data used to apportion House seats among the states and determine voting districts within them.