Pushbuild

Federal Contract Spending by County in Illinois (FY2025)

The 5 largest Illinois counties covered here had $9.8 billion in federal contract obligations in fiscal year 2025. Cook County was highest at $3.9 billion.

Counties

CountyFY2025 contractsPer residentLargest buyer
Cook County$3.9 billion$759Department of Defense
DuPage County$3.5 billion$3,748Department of Defense
Lake County$1.5 billion$2,046Department of Defense
Kane County$845.0 million$1,607Department of Energy
Will County$64.0 million$90Department of Defense

Source and coverage

Source: USAspending.gov, the U.S. Treasury's public record of federal spending. Figures are contract obligations (award types A, B, C and D) for federal fiscal year 2025, October 2024 to September 2025, by the place where the work is performed, not where the contractor is based. Grants and loans are not included. Retrieved 2026-11-01.

Obligations can be negative when earlier amounts are withdrawn. Some classified work is not reported. Contractors that may be individuals are left out of the name lists. Pushbuild is not affiliated with any government agency. Get the same data by API: US Federal Contracts API.