Congressional district · Boundaries of the 119th Congress

Missouri's 4th district

Missouri's 4th district has 782,832 residents on 14,355 mi² of land. It is represented by Mark Alford (R-MO-4). Federal contract obligations attributed to it reached $447.8M in FY2026.

Residents
782,832
Land area
14,355 mi²
Counties
24
Representative
Mark Alford
Open in the Congress explorer
Map of Missouri's 4th district within Missouri

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. Cass County14% of the district · 100% of the county
  2. Boone County11% of the district · 44% of the county
  3. Jackson County9.9% of the district · 11% of the county
  4. Johnson County7.0% of the district · 100% of the county
  5. Pulaski County6.9% of the district · 100% of the county
  6. Pettis County5.5% of the district · 100% of the county
  7. Laclede County4.6% of the district · 100% of the county
  8. Lafayette County4.2% of the district · 100% of the county
  9. Camden County4.2% of the district · 74% of the county
  10. Polk County4.1% of the district · 100% of the county
  11. Saline County3.0% of the district · 100% of the county
  12. Henry County2.9% of the district · 100% of the county
  13. Webster County2.8% of the district · 54% of the county
  14. Morgan County2.8% of the district · 100% of the county
  15. Benton County2.6% of the district · 100% of the county
  16. Vernon County2.5% of the district · 100% of the county
  17. Dallas County2.2% of the district · 100% of the county
  18. Bates County2.1% of the district · 100% of the county
  19. Cedar County1.9% of the district · 100% of the county
  20. Barton County1.5% of the district · 100% of the county
  21. Howard County1.3% of the district · 100% of the county
  22. St. Clair County1.2% of the district · 100% of the county
  23. Hickory County1.1% of the district · 100% of the county
  24. Dade County1.0% of the district · 100% 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
$447.8M
Per resident
$572
Rank in Missouri
3 of 8
Contract actions
2,038
New awards: 710

By fiscal year

  1. 386.8MFY2017
  2. 416.9MFY2018
  3. 550MFY2019
  4. 469.7MFY2020
  5. 474.3MFY2021
  6. 690.4MFY2022
  7. 516.8MFY2023
  8. 501MFY2024
  9. 457MFY2025
  10. 447.8MFY2026

Top buyers

  1. Department of the Army$276.9M62%
    Department of Defense
  2. Department of the Air Force$85.6M19%
    Department of Defense
  3. Defense Logistics Agency$61.1M14%
    Department of Defense
  4. Department of the Navy$7.2M1.6%
    Department of Defense
  5. Department of Veterans Affairs$5.5M1.2%
  6. Defense Health Agency$1.6M0.4%
    Department of Defense
  7. U.S. Citizenship and Immigration Services$1.6M0.3%
    Department of Homeland Security
  8. Defense Commissary Agency$1.5M0.3%
    Department of Defense

Top recipients

  1. BL HARBERT INTERNATIONAL LLC$129.4M29%
    1 award
  2. SEMPRE, INC.$44.8M10.0%
    2 awards
  3. ENERSYS ENERGY PRODUCTS INC.$38.5M8.6%
    50 awards
  4. TSAY PROFESSIONAL SERVICES, INC.$37.1M8.3%
    2 awards
  5. AMERICAN WATER MILITARY SERVICES, LLC$17.1M3.8%
    1 award
  6. MISSOURI DEPARTMENT OF SOCIAL SERVICES$16.9M3.8%
    3 awards
  7. SHO-ME POWER ELECTRIC COOPERATIVE$16.2M3.6%
    11 awards
  8. VAZQUEZ REASBECK CONSTRUCTION LLC$13.6M3.0%
    4 awards
  9. OMEGA PIPELINE COMPANY, LLC$8.2M1.8%
    1 award
  10. OLIN WINCHESTER LLC$7.1M1.6%
    11 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.