The Census determines representation in the House of Representatives.
The Census determines the number of electors from each state in the Electoral College.
The number of electors apportioned to each state is the same as the number of members in the Senate and House of Representatives. Therefore, if a state loses seats in the House of Representatives due to undercounting or population loss, it will lose the same number of electors in the Electoral College.
United States Census 2020, Importance of the Data.
National Archives, What is the Electoral College?
The Census data will inform agencies how funding is allocated to over 100 federal programs, including:
The government and businesses use Census data to determine where to: