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Barnstable County, Massachusetts
What we have for Barnstable County today, and what is coming.
Basics
- County code (FIPS): 25001
- Land area: 394 square miles
- Population: 228,996
Federal money spent here
Fiscal year 2026: $3.7 billion in federal contracts, grants, loans and other awards for work done in Barnstable County.
Who represents Barnstable 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) | 100% |
State senate districts
| District | Member | Share of county land |
|---|---|---|
| Cape and Islands District | not matched | 61.7% |
| Plymouth and Barnstable District | not matched | 38.3% |
State house / assembly districts
| District | Member | Share of county land |
|---|---|---|
| 4th Barnstable District | not matched | 29.3% |
| 5th Barnstable District | not matched | 22.3% |
| 3rd Barnstable District | not matched | 17.6% |
| 1st Barnstable District | not matched | 15.4% |
| 2nd Barnstable District | not matched | 11.1% |
| Barnstable-Dukes-Nantucket District | not matched | 4.3% |
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.