List of municipalities in Massachusetts by population

Massachusetts is a state located in Northeastern United States. Minor civil divisions or municipalities in the U.S. state of Massachusetts are classified as either towns or cities, distinguished by their form of government under state law. Towns have an open town meeting or representative town meeting form of government. Cities, on the other hand, use a mayor-council or council-manager form. Based on the form of government, there are 296 towns and 55 cities in Massachusetts. Some municipalities, however, still refer to themselves as "towns" even though they have a city form of government.

The following tabular list shows the 55 government divisions of the Commonwealth which have been officially granted the right to use the city form of government along with the official name in use by each municipality.

This map shows towns colored by the date they were incorporated in Massachusetts since the founding of Plimoth Plantation in 1620. Many of the towns and future cities shown covering the area of their original incorporation have since been divided into two, three or in some cases several smaller municipalities. For example, Dorchester was incorporated in 1630 and originally included all of the current Dorchester, now the largest neighborhood of Boston, plus the Boston neighborhood of Mattapan, and all of present-day Quincy, Milton, Braintree, Randolph, Holbrook, Canton, Sharon, Stoughton, Avon and the northeast portion of Foxboro. Nearly all of Massachusetts territory had been incorporated by 1815, with the final three areas of Erving (1838), Gay Head (now Aquinnah) and Mashpee (both 1870) being incorporated from previously Native American land.

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