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Plymouth County, Massachusetts
What we have for Plymouth County today, and what is coming.
Basics
- County code (FIPS): 25023
- Land area: 659 square miles
- Population: 530,819
Federal money spent here
Fiscal year 2026: $5.0 billion in federal contracts, grants, loans and other awards for work done in Plymouth County.
Who represents Plymouth County
U.S. Senate (whole state): Edward J. Markey (Democrat), Elizabeth Warren (Democrat).
U.S. House districts that include part of this county
| District | Member | Share of county land |
|---|---|---|
| Congressional District 9 | William R. Keating (Democrat) | 80.9% |
| Congressional District 8 | Stephen F. Lynch (Democrat) | 14.6% |
| Congressional District 4 | Jake Auchincloss (Democrat) | 4.5% |
State senate districts
| District | Member | Share of county land |
|---|---|---|
| Third Bristol and Plymouth District | not matched | 23.7% |
| Plymouth and Barnstable District | not matched | 23% |
| First Plymouth and Norfolk District | not matched | 17.5% |
| Second Plymouth and Norfolk District | not matched | 11.6% |
| First Bristol and Plymouth District | not matched | 9.6% |
| Norfolk-Plymouth-Bristol District | not matched | 6.5% |
| Norfolk and Plymouth District | not matched | 5.4% |
| Second Bristol and Plymouth District | not matched | 2.6% |
State house / assembly districts
| District | Member | Share of county land |
|---|---|---|
| 2nd Plymouth District | not matched | 16.4% |
| 1st Plymouth District | not matched | 13.2% |
| 12th Plymouth District | not matched | 11.2% |
| 10th Bristol District | not matched | 9.9% |
| 6th Plymouth District | not matched | 9.6% |
| 4th Plymouth District | not matched | 7.3% |
| 12th Bristol District | not matched | 7.1% |
| 5th Plymouth District | not matched | 6.6% |
| 7th Plymouth District | not matched | 4.6% |
| 8th Plymouth District | not matched | 4.1% |
| 9th Plymouth District | not matched | 3.9% |
| 3rd Plymouth District | not matched | 3.8% |
| 10th Plymouth District | not matched | 1.6% |
| 11th Plymouth District | not matched | 0.7% |
Matched by district number using the U.S. Census Bureau 2020 county–district relationship files (land area overlap; districts may have been redrawn since). Your exact district depends on your address: U.S. House · state legislators.
County government
Find the official county website and contacts in the USA.gov local government directory or the National Association of Counties explorer.
Sources: U.S. Census Bureau Gazetteer (county list, public domain); USAspending.gov (U.S. Treasury). Built 2026-11-03 15:28.