Each year, the U.S. Census Bureau produces population estimates at the state, county, and city/town level. These population estimates are used for federal funding allocations, as controls for major surveys, for community development, and as denominators for calculating statistical rates, among other uses. More information about the methodology used by the Census Bureau to produce these estimates can be found at the Census website.

With each Census release, PEP produces a summary report on the estimates for Massachusetts. These reports extract the data for Massachusetts from the Census release and provide context about population trends for researchers and planners. The most recent PEP reports on population estimates for Massachusetts, its counties, and its cities/towns may be viewed by clicking the desired level of geography above or in the menu to the left.

For additional U.S. Census data for Massachusetts, see the Massachusetts State Data Center.