The budget of United States Census Bureau is 3,100,000,000 dollars.
According to the newest census, there is about 310,500,000. But the clock keeps ticking. See the link below for the US Census Bureau's population clock.
The budget of United States Secret Service is 1,515,000,000 dollars.
The budget of United States Department of the Treasury is 13,361,000,000 dollars.
The budget of United States Department of Defense is 530,100,000,000 dollars.
The budget of United States Department of Agriculture is 129,300,000,000 dollars.
The budget of United States Department of Commerce is 10,200,000,000 dollars.
The budget of United States Geological Survey is 1,100,000,000 dollars.
The budget of United States Department of Energy is 24,100,000,000 dollars.
The budget of United States Assay Commission is 2,500 dollars.
The budget of United States Department of Justice is 27,700,000,000 dollars.
The budget of United States Department of the Interior is 20,000,000,000 dollars.
The budget of United States Department of Labor is 10,500,000,000 dollars.