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Social Security Retirement Insurance is the single largest federal spending category in FY2025, at $1.3T. Federal money is classified three ways at once: the industry that supplies it (NAICS), the thing that was bought (PSC), and the named assistance program it came from (CFDA). Each list below is the top 100 of one of them, largest first.

Ranked for FY2025. Industries ranking → Assistance programs ranking → Product and service codes ranking →

Browse by industry sector

The broad NAICS sectors: each rolls up its individual industries, recipients, and funding agencies.

By industry (NAICS)

$61.2B
$52.3B
$38.3B
$37.2B
$8.3B
$7B
$6B
$4B
$2.1B
$1.6B
$1.5B
$1.5B
$1.4B
$1.3B
$1.2B
$1.1B
Flight TrainingNAICS 611512
$986.2M
$883M
$873.2M

By product / service (PSC)

$42.3B
$26.2B
$20.6B
$5.4B
$2.9B
$2.1B
BombsPSC 1325
$2B
$1.9B
Fuel OilsPSC 9140
$1.9B
$1.8B
$1.5B

By assistance program (CFDA / Assistance Listing)

Financial assistance: Medicaid, Medicare, research funding, and other grants. These are the largest federal money flows.

Social Security Retirement InsuranceAssistance Listing 96.002
$1.3T
Grants to States for MedicaidAssistance Listing 93.778
$666.1B
$568.6B
Medicare Hospital InsuranceAssistance Listing 93.773
$432.5B
Medicare Prescription Drug CoverageAssistance Listing 93.770
$162.5B
Social Security Disability InsuranceAssistance Listing 96.001
$157.3B
Social Security Survivors InsuranceAssistance Listing 96.004
$114.9B
$87.1B
Highway Planning and ConstructionAssistance Listing 20.205
$67.4B
Supplemental Security IncomeAssistance Listing 96.006
$64.5B
Federal Pell Grant ProgramAssistance Listing 84.063
$40B
Section 8 Housing Choice VouchersAssistance Listing 14.871
$37.6B
National School Lunch ProgramAssistance Listing 10.555
$27.7B
Children's Health Insurance ProgramAssistance Listing 93.767
$20.5B
$18.3B
$17B
$16.7B
1332 State Innovation WaiversAssistance Listing 93.423
$16.1B
Social Insurance for Railroad WorkersAssistance Listing 57.001
$14.5B
Special Education Grants to StatesAssistance Listing 84.027
$14.1B
Head StartAssistance Listing 93.600
$11.8B
$10.8B
Federal Transit Formula GrantsAssistance Listing 20.507
$9.8B
$9.3B
Flood InsuranceAssistance Listing 97.022
$8.7B
$8.6B
Affordable Rural CooperativeAssistance Listing 10.758
$7.6B
Pension Plan Termination InsuranceAssistance Listing 86.001
$6.3B
Clean Energy DemonstrationsAssistance Listing 81.255
$6.2B
Drinking Water State Revolving FundAssistance Listing 66.468
$6B
State Energy ProgramAssistance Listing 81.041
$5.9B
Supplemental Disaster Relief ProgramAssistance Listing 10.988
$5.7B
Public Housing Operating FundAssistance Listing 14.850
$5.3B
Health Center ProgramAssistance Listing 93.224
$5.3B
$4.8B
Clean Water State Revolving FundAssistance Listing 66.458
$4.6B
Climate Pollution Reduction GrantsAssistance Listing 66.046
$4.6B
Child Support ServicesAssistance Listing 93.563
$4.6B
State of Good Repair Grants ProgramAssistance Listing 20.525
$4.4B
$4.2B
Low-Income Home Energy AssistanceAssistance Listing 93.568
$4.1B
Foster Care Title IV-EAssistance Listing 93.658
$4B
$4B
Aging ResearchAssistance Listing 93.866
$3.9B
Continuum of Care Program Assistance Listing 14.267
$3.4B
Public Housing Capital FundAssistance Listing 14.872
$3.2B
Cardiovascular Diseases ResearchAssistance Listing 93.837
$3.1B
Adoption AssistanceAssistance Listing 93.659
$3.1B
$3B
Clean Ports ProgramAssistance Listing 66.051
$2.9B
Nutrition Assistance For Puerto RicoAssistance Listing 10.566
$2.9B
Unemployment InsuranceAssistance Listing 17.225
$2.7B
Supply Chain Reimbursement ProgramAssistance Listing 32.010
$2.7B
Veterans State Nursing Home CareAssistance Listing 64.015
$2B
ChampvaAssistance Listing 64.039
$1.9B
Mental Health Research GrantsAssistance Listing 93.242
$1.8B
Mathematical and Physical SciencesAssistance Listing 47.049
$1.7B
Rural Rental Assistance PaymentsAssistance Listing 10.427
$1.6B
Social Services Block GrantAssistance Listing 93.667
$1.6B
Impact AidAssistance Listing 84.041
$1.6B
$1.5B
$1.5B
Trans-NIH Research SupportAssistance Listing 93.310
$1.4B