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City of BostonA prototype of Analyze Boston by Datopian, not an official City of Boston website. Visit Boston.gov

Analyze Boston

Census Tracts Boston (2020)

Planning Department

Updated Nov 8, 2026

About this dataset

Census Tracts are small geographic subdivisions of a county, designed by the U.S. Census Bureau to track population change over time. A census tract population ranges from 1,200 to 8,000 people. Because population and housing in census tracts change over time, census tract boundaries in shapefiles are updated after each Decennial Census. U.S. Census TIGER/Line boundaries were modified to align with Boston’s citywide extent.

For historical and current demographic data using these 2020 Census Tract boundaries, please refer to the following Analyze Boston pages:

To view these data interactively at the tract, neighborhood, and broader city level please use the Research Division’s Exploring Neighborhood Change Tool for historical data and the Research Division’s MyDemographic Viewer tool for current data.

For more information regarding Massachusetts 2020 Census Tracts please see the following relevant U.S. Census Bureau data page.

Data and resources (3)

Prototype by Datopian · not an official government website · data from data.boston.gov