Fun Facts about Massachusetts Municipalities
Massachusetts has 351 cities and towns, and no two run exactly alike – different population sizes, different governing structures, different histories. Knowing the difference between a Select Board and a City Council, or how a 62-person island town compares to a city of 673,000, is the kind of granular, community-by-community knowledge InstaTrac works with every day. Here's a look at what makes the Commonwealth's municipal landscape so distinct
Cities vs. Towns, at a Glance
Massachusetts doesn't have a single template for local government. The Commonwealth splits into two forms:
A community needs at least 12,000 residents to adopt a city form of government – there's no equivalent floor for towns. That's why you'll find some "towns" that are functionally cities: 14 communities, including Amherst, Braintree, and Weymouth, kept the word "town" even after adopting a city-style council. If you've ever had to double-check whether a client's community runs on Town Meeting or a Council vote, this is why.
By the Numbers: Population Extremes
Boston, the home to Beacon Hill, leads with the highest population of approximately 672,973 as of the 2025 Census Bureau estimate – more than 10,000 times the population of Gosnold, the state's smallest town, at roughly 62 residents on the Elizabeth Islands off Cuttyhunk.
Longest-Serving and Youngest Mayors
Longest-serving: If you go towards central Massachusetts, you’ll find the current longest-serving mayor, Dean Mazzarella of Leominster. Mayor Mazzarella has been serving his town since 1994, making 2026 his 32nd consecutive year in office.
Youngest ever elected: Alex Morse won his first election as Mayor of Holyoke in November 2011 at age 22, becoming the city's youngest mayor. He was reelected three times before resigning in 2021 to become Provincetown's town manager.
Current youngest: Michael Nicholson is the current youngest mayor, having been elected at 25 to lead the city of Gardner in 2020.
Naming Patterns: What Letter Do Most Towns Start With?
W and S alone account for nearly a quarter of all 351 municipalities – worth knowing next time you're building an alphabetized contact list or a territory map.
Oldest and Newest Towns
Oldest: Plymouth, settled by the Mayflower Pilgrims in 1620.
Newest: East Brookfield, incorporated on March 24, 1920, after separating from the town of Brookfield – almost exactly 300 years after Plymouth.
What a 351-Community Landscape Means for Municipal Leaders
Here's the practical problem underneath all of this: 351 municipalities means 351 separate meeting schedules, each with its own minutes to draft, publish, and keep compliant with the Massachusetts Open Meeting Law. A clerk or staffer producing those minutes by hand can't keep pace – not across a landscape this fragmented, and not without losing time that should go toward actually running the meeting.
That's the gap MuniTrac is built to close. It generates AI-powered meeting minutes and searchable transcripts that publish directly to a town's public-facing website: freeing up staff time, giving residents easier access to what happened at a meeting, and helping municipalities stay compliant with the Massachusetts Open Meeting Law.
See how the City of Everett – population over 51,000 – uses MuniTrac to keep city council and school committee minutes public and up to date.
Whether your meetings run in a 62-person island town or a city of nearly 673,000, staying public, current, and compliant shouldn't take more staff hours than the meeting itself. Contact us to schedule a demo and see how MuniTrac keeps your minutes moving.
