Congressional district · Boundaries of the 118th Congress

Louisiana's 4th district

Louisiana's 4th district has 762,450 residents on 13,210 mi² of land. Mike Johnson (R-LA-4) held the seat last under these boundaries. Federal contract obligations attributed to it reached $512.5M 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
762,450
Land area
13,210 mi²
Counties
16
Representative
Mike Johnson
Open in the Congress explorer
Map of Louisiana's 4th district within Louisiana

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. Caddo Parish30% of the district · 100% of the county
  2. Bossier Parish17% of the district · 100% of the county
  3. St. Landry Parish11% of the district · 100% of the county
  4. Vernon Parish6.2% of the district · 100% of the county
  5. Natchitoches Parish4.8% of the district · 100% of the county
  6. Beauregard Parish4.8% of the district · 100% of the county
  7. Webster Parish4.7% of the district · 100% of the county
  8. Evangeline Parish4.2% of the district · 100% of the county
  9. De Soto Parish3.5% of the district · 100% of the county
  10. Allen Parish2.9% of the district · 100% of the county
  11. Sabine Parish2.9% of the district · 100% of the county
  12. Union Parish2.7% of the district · 100% of the county
  13. Claiborne Parish1.8% of the district · 100% of the county
  14. Bienville Parish1.7% of the district · 100% of the county
  15. Red River Parish1.0% of the district · 100% of the county
  16. Grant Parish0.8% of the district · 29% 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
$512.5M
Per resident
$672
Rank in Louisiana
4 of 6
Contract actions
2,667
New awards: 1,698

By fiscal year

  1. 529.9MFY2017
  2. 532.3MFY2018
  3. 578.2MFY2019
  4. 582.7MFY2020
  5. 491.4MFY2021
  6. 592MFY2022
  7. 891.4MFY2023
  8. 883.8MFY2024
  9. 686MFY2025
  10. 512.5MFY2026

Top buyers

  1. Department of the Army$225.7M44%
    Department of Defense
  2. Department of the Air Force$147.6M29%
    Department of Defense
  3. Defense Logistics Agency$36.8M7.2%
    Department of Defense
  4. Department of Veterans Affairs$35.2M6.9%
  5. Federal Prison System / Bureau of Prisons$21M4.1%
    Department of Justice
  6. Office of the Assistant Secretary for Administration and Management$10.9M2.1%
    Department of Labor
  7. Defense Information Systems Agency$7.9M1.5%
    Department of Defense
  8. National Institutes of Health$6.8M1.3%
    Department of Health and Human Services

Top recipients

  1. VALIANT GLOBAL DEFENSE SERVICES INC.$68.5M13%
    2 awards
  2. AMENTUM SERVICES, INC.$44.1M8.6%
    2 awards
  3. CERRIS BUILDERS, INC$30.6M6.0%
    1 award
  4. PRIDE INDUSTRIES$27.9M5.4%
    17 awards
  5. SMALL BUSINESS CONSULTING CORPORATION$20.4M4.0%
    5 awards
  6. V2X AEROSPACE LLC$17.9M3.5%
    1 award
  7. MTP DRIVETRAIN SERVICES, L.L.C.$16.3M3.2%
    77 awards
  8. BCG FEDERAL CORP.$15.7M3.1%
    1 award
  9. AMERICAN WATER OPERATIONS AND MAINTENANCE, LLC$15.5M3.0%
    1 award
  10. PENNS CONTRACTING INC$11.9M2.3%
    1 award

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.