New Air Quality Sensors

The Williamstown Health Department has installed five outdoor air‑quality sensors throughout town to expand residents’ access to timely, local air‑quality information.

Free Air Conditioners!

Stay safe and cool this summer – apply to receive one of five free air conditioners for low-income residents ages 60 and older.

Town Elections Sample Ballot

View a sample ballot for the Annual Election taking place Tuesday, May 12, 2026 from 7:00 AM until 8:00 PM at Williamstown Elementary School. This is your opportunity to choose who represents you on the Select Board and other elected committees.

2026 Annual Census

The Annual Census, also known as the Annual Street Listing, has been mailed to all Williamstown residents. Please return the completed form promptly.

Main Street Bridge Project Update

The Main Street bridge over Hemlock Brook has been reconstructed by MassDOT and is re-opened to traffic. In the Spring, plantings will be installed, and some minor items will be buttoned up. Current completion date is May 20, 2026.

Five Corners Roundabout Project

This MassDOT project converted the stop-controlled intersection of Route 7 and Route 43 to a roundabout. Much of the work on this project is complete and will continue in the Spring.

Williamstown Rodenticide Policy

As per this new policy, use of certain pesticides known as second-generation anticoagulant rodenticides (SGARs) will be avoided on town-owned property. These chemicals can harm owls, hawks, and other wildlife, as well as some domestic animals that feed on poisoned rodents.