Congressional district · Boundaries of the 119th Congress

Illinois's 3rd district

Illinois's 3rd district has 731,869 residents on 154 mi² of land. It is represented by Delia C. Ramirez (D-IL-3). Federal contract obligations attributed to it reached $271.2M in FY2026.

Residents
731,869
Land area
154 mi²
Counties
2
Representative
Delia C. Ramirez
Map of Illinois's 3rd district within Illinois

Members for this district

Members who held this seat while these boundaries were in force, newest first.

Senators

The state's senators today, or on the last day of these boundaries for an older plan.

Counties

Share of the district's residents living in each county, and share of the county's residents living in the district (2020 census tracts weighted by their overlap).

  1. Cook County74% of the district · 10% of the county
  2. DuPage County26% of the district · 21% of the county

Federal contracts

Contract obligations attributed to the district by each action's county and its award's ZIP code (land shares through census tracts); an estimate where ZIP codes cross district lines.

Obligations · FY2026
$271.2M
Per resident
$371
Rank in Illinois
9 of 17
Contract actions
9,794
New awards: 7,976

By fiscal year

  1. 241.6MFY2017
  2. 279.8MFY2018
  3. 371.7MFY2019
  4. 314.1MFY2020
  5. 340.2MFY2021
  6. 328.1MFY2022
  7. 271.5MFY2023
  8. 391MFY2024
  9. 371.9MFY2025
  10. 271.2MFY2026

Top buyers

  1. Department of Defense
  2. Department of Defense
  3. Department of Defense
  4. Department of Defense
  5. Department of Agriculture
  6. General Services Administration
  7. Department of Justice

Top recipients

  1. 150 awards
  2. US FOODS INC$47.2M17%
    29 awards
  3. 1,508 awards
  4. 2,242 awards
  5. 11 awards
  6. 1 award
  7. 8 awards
  8. 19 awards
  9. 13 awards
  10. 93 awards

Other boundaries

District lines change between plans; each plan keeps its own page.

Sources and method

Every figure on this page traces to these records.

  • Congressional district boundaries and relationship files (U.S. Census Bureau)U.S. Census Bureau, Cartographic Boundary Files (congressional districts) and 2020 relationship files · release cd116+cd118+cd119 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Members of Congress, their terms, committees and identifiers (The @unitedstates project (from the Biographical Directory of the U.S. Congress, the House and the Senate))unitedstates/congress-legislators: legislators, committees and current committee membership · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: CC0 1.0 (public domain dedication)
  • ZIP code (ZCTA) to congressional district crosswalk (U.S. Census Bureau)U.S. Census Bureau, 2020 relationship files (ZCTAs, tracts and congressional districts); shares computed by Analisa · release 2020 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov)USAspending.gov, prime award contract transactions (FPDS) · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Money and votes are shown side by side; neither explains the other.