Congressional district · Boundaries of the 118th Congress

Illinois's 14th district

Illinois's 14th district has 754,081 residents on 1,975 mi² of land. Lauren Underwood (D-IL-14) held the seat last under these boundaries. Federal contract obligations attributed to it reached $167.1M in FY2026.

These are the boundaries of the 118th Congress. The newest boundaries of this district are on its main page. See the newest boundaries

Residents
754,081
Land area
1,975 mi²
Counties
7
Representative
Lauren Underwood
Open in the Congress explorer
Map of Illinois's 14th 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. Will County49% of the district · 53% of the county
  2. Kendall County18% of the district · 100% of the county
  3. LaSalle County11% of the district · 77% of the county
  4. DeKalb County11% of the district · 81% of the county
  5. Kane County8.7% of the district · 13% of the county
  6. Bureau County1.6% of the district · 36% of the county
  7. Putnam County0.4% of the district · 60% 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
$167.1M
Per resident
$222
Rank in Illinois
12 of 17
Contract actions
23.3K
New awards: 22.6K

By fiscal year

  1. 43.8MFY2017
  2. 83.8MFY2018
  3. 94MFY2019
  4. 56.9MFY2020
  5. 79.5MFY2021
  6. 121.2MFY2022
  7. 71.2MFY2023
  8. 118MFY2024
  9. 77.1MFY2025
  10. 167.1MFY2026

Top buyers

  1. Department of the Army$133.1M80%
    Department of Defense
  2. Federal Acquisition Service$13.4M8.0%
    General Services Administration
  3. Office of the Assistant Secretary for Administration and Management$5.6M3.3%
    Department of Labor
  4. Department of Veterans Affairs$5M3.0%
  5. Bureau of Alcohol, Tobacco, Firearms and Explosives Acquisition and Property Management Division$2.6M1.5%
    Department of Justice
  6. Defense Logistics Agency$1.9M1.1%
    Department of Defense
  7. Department of the Navy$853K0.5%
    Department of Defense
  8. Environmental Protection Agency$814.7K0.5%

Top recipients

  1. J. F. BRENNAN COMPANY, INC.$111M66%
    2 awards
  2. S & S FOREST PRODUCTS, LLC$17.9M11%
    1 award
  3. DOCUMENT IMAGING DIMENSIONS INC.$13.8M8.2%
    22,093 awards
  4. MANAGEMENT & TRAINING CORPORATION$3.5M2.1%
    1 award
  5. DAE SUNG LLC$2.7M1.6%
    4 awards
  6. INTEGRITY FEDERAL SERVICES, INC$2.2M1.3%
    1 award
  7. STRATEGIX MANAGEMENT LLC$2M1.2%
    1 award
  8. CHENEGA EXP FEDERAL JV, LLC$2M1.2%
    1 award
  9. ARDL INC$1.5M0.9%
    5 awards
  10. KAY KAY LLC$1.2M0.7%
    27 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 9, 2026 · loaded Oct 9, 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.