https://www.pewresearch.org/fact-tank/2017/04/04/what-does-the-federal-government-spend-your-tax-dollars-on-social-insurance-programs-mostly/by Drew DeSilver
Originally reposted April 4, 2017; reposted today (April 15, 2019)
In fiscal year 2016, which ended this past Sept. 30, the federal government spent just under $4 trillion, and about $2.7 trillion – more than two-thirds of the total – went for various kinds of social insurance (Social Security, Medicaid and Medicare, unemployment compensation, veterans benefits and the like). Another $604 billion, or 15.3% of total spending, went for national defense; net interest payments on government debt was about $240 billion, or 6.1%. Education aid and related social services were about $114 billion, or less than 3% of all federal spending. Everything else – crop subsidies, space travel, highway repairs, national parks, foreign aid and much, much more – accounted for the remaining 6%.
(excerpt)