Your Voice in Government
Barnstable Legislators
Who Represents Barnstable
Barnstable is big enough that no single state representative speaks for all of it. At the State House, one senator covers the whole town, but two representatives split it by precinct, so the rep for your street depends on which precinct you live in. In Washington it is simpler: all of Barnstable shares one member of Congress and the Commonwealth’s two U.S. senators.
State Senator
Cape & Islands District · Democrat
Julian Cyr
Julian Cyr grew up in Truro and has represented the Cape and Islands in the state Senate since 2017. Here is the detail worth circling: he keeps a district office right inside Barnstable Town Hall (367 Main Street, Hyannis, Room 2L; 508-237-7001). Your senator works a few steps from where the Town Council meets, which makes him one of the easiest officials in this guide to reach in person.
State Representatives
Two House districts carve up Barnstable’s thirteen precincts between them. Use the lookup tools below to find which representative is actually yours.
2nd Barnstable District · Democrat
Kip A. Diggs
5th Barnstable District · Republican
Steven G. Xiarhos
Find Your Exact Legislator
Because the town is split between two House districts, do not guess. Look up your exact address:
In Washington
All of Barnstable sits in the 9th Congressional District, held since 2013 by U.S. Representative Bill Keating, a Democrat. In the U.S. Senate, Massachusetts is represented by Elizabeth Warren, the senior senator since 2013, and Edward J. “Ed” Markey, the junior senator since 2013. Three people in Washington, all reachable, all answerable to you.
Sources
Massachusetts Legislature (malegislature.gov). Verified July 2026.
Open States (Plural). Verified July 2026.
What this seat decides
The state and federal seats
Your State Representative and your State Senator. State law: the driving age, the minimum wage, the bottle deposit, and Chapter 70, the formula that decides how much state money your schools get. They also carry a home rule petition to the State House when your town votes for something state law does not yet allow it to do.
Your member of Congress and your two US Senators. Federal law and federal money, and help with a federal agency like Social Security, the VA, or immigration when someone in your family needs it. They also nominate candidates to the US service academies.
Knowing who represents you is the first step. Learn how to write to them effectively.