Important dates for Massachusetts voters: Register in person, by mail or online by Wednesday, October 14th Election Day: Tuesday, November 3rd How to Register, How to Vote Find all kinds of details about the voting process on these non-partisan sites. Town of Williamstown - General Election Voting 2026 Details are provided here about how to vote if you are a Williamstown resident, and what this year's ballot will look like. State of Massachusetts - Elections Division Find ou