Congressional district · Boundaries of the 118th Congress

Maryland's 1st district

Maryland's 1st district has 784,299 residents on 3,867 mi² of land. Andy Harris (R-MD-1) held the seat last under these boundaries. Federal contract obligations attributed to it reached $2.1B 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
784,299
Land area
3,867 mi²
Counties
11
Representative
Andy Harris
Open in the Congress explorer
Map of Maryland's 1st 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. Harford County34% of the district · 100% of the county
  2. Cecil County13% of the district · 100% of the county
  3. Wicomico County13% of the district · 100% of the county
  4. Baltimore County7.2% of the district · 6.7% of the county
  5. Worcester County6.8% of the district · 100% of the county
  6. Queen Anne's County6.6% of the district · 100% of the county
  7. Talbot County4.8% of the district · 100% of the county
  8. Caroline County4.3% of the district · 100% of the county
  9. Dorchester County4.2% of the district · 100% of the county
  10. Somerset County3.2% of the district · 100% of the county
  11. Kent County2.5% 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
$2.1B
Per resident
$2,645
Rank in Maryland
7 of 8
Contract actions
9,716
New awards: 6,529

By fiscal year

  1. 2.8BFY2017
  2. 3.5BFY2018
  3. 3.3BFY2019
  4. 5.3BFY2020
  5. 3.1BFY2021
  6. 2.5BFY2022
  7. 2.8BFY2023
  8. 2.8BFY2024
  9. 2.8BFY2025
  10. 2.1BFY2026

Top buyers

  1. Department of the Army$866.5M42%
    Department of Defense
  2. Federal Acquisition Service$379.4M18%
    General Services Administration
  3. Defense Logistics Agency$310.4M15%
    Department of Defense
  4. Department of the Navy$115.2M5.6%
    Department of Defense
  5. Defense Information Systems Agency$107M5.2%
    Department of Defense
  6. Department of the Air Force$69.2M3.3%
    Department of Defense
  7. Centers for Medicare and Medicaid Services$62.1M3.0%
    Department of Health and Human Services
  8. Transportation Security Administration$47M2.3%
    Department of Homeland Security

Top recipients

  1. FAIRWINDS TECHNOLOGIES LLC$342.9M17%
    129 awards
  2. MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC.$187.5M9.0%
    2 awards
  3. C AND C JOINT VENTURES LLC$111.4M5.4%
    1 award
  4. BOOZ ALLEN HAMILTON INC$78.6M3.8%
    17 awards
  5. CACI TECHNOLOGIES, LLC$76.3M3.7%
    8 awards
  6. CACI, INC. - FEDERAL$74.9M3.6%
    7 awards
  7. SMITHS DETECTION INC.$61.9M3.0%
    88 awards
  8. QED SYSTEMS, LLC$58.8M2.8%
    11 awards
  9. QLARANT INTEGRITY SOLUTIONS LLC$58.2M2.8%
    4 awards
  10. TRAX INTERNATIONAL CORPORATION$52.1M2.5%
    2 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 7, 2026 · loaded Oct 7, 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.