The 2020 Census is expected to cost $15.6 billion, more than three times the 2000 survey and about $107 per household, according to the Senate committee overseeing the effort.
“Although the Census is constitutionally mandated, the cost to count our population is increasing faster than the population itself,” according to Sen. Ron Johnson, the chairman of the Senate Homeland Security and Governmental Affairs Committee.
In the opening statement he plans to give at Tuesday’s hearing on the Census, Johnson added, “The 1970 Census cost $17 per household in inflation adjusted dollars. 
The Department of Commerce estimates that the 2020 Census will cost $107 per household..."
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