Congressional district · Boundaries of the 119th Congress

Massachusetts's 3rd district

Massachusetts's 3rd district has 786,293 residents on 750 mi² of land. It is represented by Lori Trahan (D-MA-3). Federal contract obligations attributed to it reached $2.1B in FY2026.

Residents
786,293
Land area
750 mi²
Counties
3
Representative
Lori Trahan
Open in the Congress explorer
Map of Massachusetts's 3rd district within Massachusetts

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. Middlesex County56% of the district · 27% of the county
  2. Essex County27% of the district · 26% of the county
  3. Worcester County18% of the district · 16% 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
$2,634
Rank in Massachusetts
3 of 9
Contract actions
11K
New awards: 8,127

By fiscal year

  1. 1.8BFY2017
  2. 1.4BFY2018
  3. 2.2BFY2019
  4. 2.8BFY2020
  5. 1.8BFY2021
  6. 1.7BFY2022
  7. 1.6BFY2023
  8. 1.6BFY2024
  9. 2.6BFY2025
  10. 2.1BFY2026

Top buyers

  1. Federal Aviation Administration$671.1M32%
    Department of Transportation
  2. Department of the Air Force$455.9M22%
    Department of Defense
  3. Department of the Navy$354.2M17%
    Department of Defense
  4. Defense Logistics Agency$221.9M11%
    Department of Defense
  5. Department of Veterans Affairs$126.9M6.1%
  6. U.S. Coast Guard$68.5M3.3%
    Department of Homeland Security
  7. Department of the Army$37.3M1.8%
    Department of Defense
  8. Defense Microelectronics Activity$32.3M1.6%
    Department of Defense

Top recipients

  1. RAYTHEON COMPANY$1.2B56%
    165 awards
  2. GOODRICH CORPORATION$100.5M4.9%
    23 awards
  3. FAIRWINDS TECHNOLOGIES LLC$96.8M4.7%
    1 award
  4. TELEDYNE FLIR DEFENSE, INC.$73.9M3.6%
    60 awards
  5. ZOLL MEDICAL CORPORATION$42.7M2.1%
    4,232 awards
  6. STS INTERNATIONAL, INCORPORATED$39.6M1.9%
    3 awards
  7. FEDEX SUPPLY CHAIN DISTRIBUTION SYSTEM, INC.$39.3M1.9%
    1 award
  8. ASSURANCE TECHNOLOGY CORP$33.4M1.6%
    6 awards
  9. RAYTHEON COMPANY$32.3M1.6%
    3 awards
  10. APPLIED RESEARCH SOLUTIONS, INC.$26.2M1.3%
    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 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.