Congressional district · Boundaries of the 119th Congress

Maryland's 4th district

Maryland's 4th district has 760,607 residents on 217 mi² of land. It is represented by Glenn Ivey (D-MD-4). Federal contract obligations attributed to it reached $3.4B in FY2026.

Residents
760,607
Land area
217 mi²
Counties
2
Representative
Glenn Ivey
Open in the Congress explorer
Map of Maryland's 4th district within Maryland

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. Prince George's County95% of the district · 75% of the county
  2. Montgomery County5.1% of the district · 3.6% 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
$3.4B
Per resident
$4,416
Rank in Maryland
4 of 8
Contract actions
36.5K
New awards: 30K

By fiscal year

  1. 3.8BFY2017
  2. 4.3BFY2018
  3. 5.4BFY2019
  4. 6.1BFY2020
  5. 4.5BFY2021
  6. 4.4BFY2022
  7. 5.2BFY2023
  8. 4.7BFY2024
  9. 4BFY2025
  10. 3.4BFY2026

Top buyers

  1. National Aeronautics and Space Administration$884.6M26%
  2. U.S. Census Bureau$369.3M11%
    Department of Commerce
  3. Internal Revenue Service$326.6M9.7%
    Department of the Treasury
  4. National Oceanic and Atmospheric Administration$247.7M7.4%
    Department of Commerce
  5. Department of the Army$234.3M7.0%
    Department of Defense
  6. U.S. Secret Service$108.6M3.2%
    Department of Homeland Security
  7. National Archives and Records Administration$107.8M3.2%
  8. Department of the Air Force$107.5M3.2%
    Department of Defense

Top recipients

  1. ASRC FEDERAL FACILITIES LOGISTICS LLC$163.8M4.9%
    774 awards
  2. KBR WYLE SERVICES, LLC$138.6M4.1%
    5 awards
  3. IGNITEACTION LLC$107.1M3.2%
    14 awards
  4. EARTH RESOURCES TECHNOLOGY, LLC$94.9M2.8%
    16 awards
  5. COLUMBUS TECHNOLOGIES AND SERVICES, INC$86.1M2.6%
    1 award
  6. SPACE NETWORK SOLUTIONS LLC$67.2M2.0%
    1 award
  7. ADNET SYSTEMS INC$66.1M2.0%
    1 award
  8. AERODYNE-SGT ENGINEERING SERVICES, LLC$64.1M1.9%
    1 award
  9. SCIENCE SYSTEMS AND APPLICATIONS, INC.$60.9M1.8%
    5 awards
  10. TRX SYSTEMS, INC.$59.8M1.8%
    5 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.