Welcome to the Boston Area Research Initiative's data library. Here you will find data describing the people, places, and events in the greater Boston area that have been made available for research. This includes a variety of data generated by academics, government agencies, and others.

When possible, we have made these data available for immediate download. In other cases, restrictions or sensitivities regarding the data make it necessary for those who want to use them to request permission in order to gain access. This may sometimes entail gaining permission also from your institution's Human Subjects Research Review Committee.

An important part of the BARI network is that researchers and policymakers communicate about their respective work. To this effect, we ask that anyone using the data on this site please report their findings back to those who originally contributed the data. Especially in the case of public agencies or community groups, such insights might be helpful in how they think about their operations or practices. Such communication might also lead to new and fruitful collaborations.

Also, as you work with the data and discover new things, or develop new ways to extract information from it, please use the comments page to share this knowledge with others, furthering the cumulative intelligence we have surrounding these data.

Finally, if you are the owner of data that you would like to include in the BARI library, or would like to request that a certain type of data be added to the library, please contact us at BARI@northeastern.edu.

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1 to 10 of 53 Results
Jun 5, 2025
O'Brien, Dan; Hangen, Forrest; Ristea, Alina; Maulaa, Mahbub, 2016, "311 Requests", https://doi.org/10.7910/DVN/CVKM87, Harvard Dataverse, V9, UNF:6:MAzbxkcD6nzsSrur1RHDdA== [fileUNF]
The 311 database is an archive of reports received by the City of Boston's 311 system (formerly the Boston’s Mayor’s Hotline or Constituent Relationship Management), as well as a set of derived data and associated measures, including: the types of cases received by the system; the reporting patterns of individual users; and ecometric measures of ne...
Apr 22, 2025
Tapan, Yunus Emre; Sheini, Saina; Montgomery, Barrett; de Benedictis-Kessner, Justin; O'Brien, Daniel T.; Ferreyra, Juan Cruz, 2018, "Building Permits", https://doi.org/10.7910/DVN/B7DHBK, Harvard Dataverse, V10, UNF:6:+y1kbphbsGt9DXk/znwkzw== [fileUNF]
This dataset contains various files detailing the City of Boston’s building permits applications from September 26, 2006 to the recent present. The raw data were originally gathered and released by the Inspectional Service Department (ISD) of the City of Boston. It details various property, land-use, and building activities for the properties of Bo...
Jan 31, 2025
Sanchez, Sarah; O'Brien, Dan; Ciomek, Alexandra; Tucker, Riley; Maulaa, Mahbub, 2024, "Massachusetts Census Indicators (2020 Geographies)", https://doi.org/10.7910/DVN/CZJCYI, Harvard Dataverse, V2, UNF:6:+GdkprcT1NH6EQ437BdHMA== [fileUNF]
This dataset contains indicators for both the decennial Census and American Community Survey (ACS) describing the population of Massachusetts through census geographies associated with the 2020 Decennial Census. Decennial Census indicators exist as the block, block group, and tract levels. ACS indicators are only at the block group and tract levels...
Dec 6, 2024
Tapan, Yunus Emre; Ciomek, Alexandra; Ristea, Alina; Hatten, David; O'Brien, Daniel T., 2019, "Boston 911 Calls", https://doi.org/10.7910/DVN/XTEJRE, Harvard Dataverse, V5, UNF:6:X1VkzvInXYjmd3nvGAUXKQ== [fileUNF]
This data comes from a database curated by BARI based on records generated by the City of Boston's 911, or CAD, (i.e., computer-aided dispatch) system. BARI releases annual measures for census geographies describing the types of cases occurring in each, particularly including a set of ecometrics (i.e., neighborhood characteristics) that have been d...
Jun 5, 2024 - Geographical Infrastructure for the City of Boston Dataverse
Tapan, Yunus Emre; Hatten, Dave; Zoorob, Michael; Ristea, Alina; Sheini, Saina; O'Brien, Daniel T., 2024, "Geographical Infrastructure for the City of Boston v. 2023", https://doi.org/10.7910/DVN/KZEERJ, Harvard Dataverse, V1, UNF:6:RA8pBUoRzCCiIM6wxikyJA== [fileUNF]
The Boston Area Research Initiative’s Geographical Infrastructure for Boston is a database that organizes and links the places and regions of Boston, MA across 17 levels—including land parcels, streets, census geographies, and other administrative regions. The levels are organized in a hierarchy, with the items in each level nested in the higher-le...
May 18, 2024
Yunus Emre Tapan; Daniel T. O'Brien, 2024, "2020 Census Geographies", https://doi.org/10.7910/DVN/M9F1XY, Harvard Dataverse, V1, UNF:6:IVUEE62mms86o2uYk40hog== [fileUNF]
Every ten years, the U.S. Census Bureau conducts a count and collects information on the U.S. population. As part of this process, the Census Bureau creates a series of nested geographies for proper sampling and counting. As of the 2020 census, the City of Boston, MA contains 5,975 census blocks (defined as any piece of land bounded by streets or w...
May 17, 2024
Boston Area Research Initiative, BARI, 2024, "Administrative Geographies for the City of Boston 2024", https://doi.org/10.7910/DVN/GDET2L, Harvard Dataverse, V1
This data set contains a series of administrative geographies utilized by the City of Boston, including: traditional neighborhoods defined by the Boston Planning and Development Agency (BPDA Neighborhood Statistical Areas, BPDA Planning Districts); election board regions (City Council Districts, Election Precincts, Election Wards); and districts fo...
Apr 17, 2024
Yunus Emre Tapan; Saina Sheini; Daniel T. O'Brien, 2024, "Property Assessment Data for Boston, MA v. 2022", https://doi.org/10.7910/DVN/50TDWN, Harvard Dataverse, V1, UNF:6:2oQEstbFGDaayxZwVYcubw== [fileUNF]
This dataset details the various cross-sectional and longitudinal data files of the City of Boston's property assessment data. These data were curated and added to by the Boston Area Research Initiative. The corresponding documentation details information about the various attributes and measures within these data files. Note that Assessments from...
Aug 3, 2023
Riley Tucker; Mehrnaz Amiri; Xin Shu; Dave Hatten; Brooke Glatzhofer; Daniel T. O'Brien, 2020, "Airbnb in Greater Boston, MA", https://doi.org/10.7910/DVN/GXLZXF, Harvard Dataverse, V5, UNF:6:jhTOSdeDTR69w7aNFrIadQ== [fileUNF]
These datasets include information about Airbnb listings in the Boston area processed from data released by insideairbnb.com. Inside Airbnb produces monthly data releases about Airbnb activity for select regions internationally. This data includes listings from Inside Airbnb’s “Boston” and “Cambridge” releases. AIRBNB.Listing is a listing-level fil...
Aug 3, 2023
Edgar Castro; Mehrnaz Amiri; Riley Tucker; Daniel T. O'Brien, 2020, "Craigslist Postings in Massachusetts", https://doi.org/10.7910/DVN/52WSPT, Harvard Dataverse, V5, UNF:6:qjYB3OKGKh6nAQnfwxGnCw== [fileUNF]
These datasets include information about housing listings on Craigslist for the state of Massachusetts processed from data scraped by BARI. This release includes listings for all five Massachusetts regions designated by Craigslist (Boston, Cape Cod, South Coast, Western Mass, and Worcester). CRAIGSLIST.Listings is a listing-level file that contains...
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