MassGIS now on Instagram and Threads
Follow MassGIS on social media with Instagram and Threads!
MassGIS is part of the Massachusetts Executive Office of Technology Services and Security (EOTSS) @masseotss , and we’re here to share the maps, data, imagery, and geographic stories that help us understand Massachusetts. From statewide datasets and aerial imagery to maps that reveal the places where we live, work, and explore, MassGIS helps make geographic information available to people and organizations across the Commonwealth. Peek at past projects as we celebrate 40 years of mapmaking and learn what we're working on today.
Follow along as we explore Massachusetts — one map at a time.
#MassGIS #Massachusetts #GIS #Geospatial #Maps #OpenData #MappingMassachusetts
MassGIS wins AI Award at MA Digital Government Summit
September 24, 2026 - We’re proud to share that MassGIS won the AI Project Award for 911 Mapping at the Massachusetts Digital Government Summit!
Our team is responsible for maintaining statewide geographic data that supports 911 dispatch and other critical services across Massachusetts. Keeping building and street-address information accurate means reviewing hundreds of thousands of records—and we saw an opportunity to make that work dramatically faster.
MassGIS staff developed new applications that transformed how we review structures and street-address ranges statewide, helping us maintain more accurate geographic data to support 911 dispatch and services for communities across Massachusetts. Mike Mulqueen, MassGIS GIS Specialist, presented.
MassGIS on 'Chronicle'
February 26, 2026 - MassGIS was featured on WCVB Channel 5’s 'Chronicle', the nation's longest running and top rated locally produced news magazine, as part of an episode on mapping. Watch the segment: "A look inside MassGIS — The data behind the Commonwealth’s ultimate map."
Also watch related segments:
MassGIS-CSCR Partnership
The Cohasset Center for Student Coastal Research (CSCR), a high school student-centered organization in Massachusetts that facilitates community-driven environmental scientific research of watersheds and the coast, has begun a partnership with MassGIS. Read about the partnership and CSCR's visit to MassGIS.
MassGIS Data Hub
Explore the MassGIS Data Hub!
Our vision for this open data portal is that it will serve as a "front door" where users can go to search for public, authoritative geospatial data services from MassGIS and other organizations across the Commonwealth. Anyone can search the Hub for data of interest by entering keywords, or by browsing featured content or data categories. The Hub features options for viewing the items in maps and downloading the data in several formats.
The site searches MassGIS's ArcGIS Online organization for map, feature, image, and tile services, along with web maps, applications, and dashboards. We've also added items from the Executive Office of Energy and Environmental Affairs, MassDOT, and other state agencies.
We’d like to include your data too!
To make the Hub as useful as possible to the GIS user community, we extend an invitation to any organizations that would like their ArcGIS Online-based authoritative data to be discoverable in the MassGIS Data Hub. For us to consider your data for inclusion, you would need to create an ArcGIS Online Open Data group and publicly share it with Everyone. Include metadata and plenty of good keywords on the item details pages of your services for best results. Then, email MassGIS the name of the group and we will review it. Once included, users who search our Hub will be able to find your ArcGIS Online data and apps. Also, if you want our items discoverable in your Hubs, email us the names of our groups you would need to add to your Groups Manager.
Massachusetts Geospatial Strategy
Learn more about this initiative to help guide our activities through the end of the decade.
Maps and apps
New version of the Massachusetts Interactive Property Map
- This ALL NEW Experience Builder version contains the main map and tabs for downloading parcel data and viewing the parcel status dashboard. New features include an Abutters Tool that highlights parcels adjacent to a selected property and displays information about those neighboring parcels. Parcel popups now include use code descriptions, making it easier for users to interpret parcel data. The application is optimized for desktop, tablet, and mobile devices.
New StoryMap: From Postal Data to Mappable Streets
- This StoryMap from MassGIS describes how MassGIS synchronized the U.S. Postal Service's ZIP+4 street information with the Master Address Database.
Since the MAD is crucial for state 911 emergency services, the USPS data can be a vital source of missing and new addresses.
New Massachusetts Municipal GIS Gallery
- Search for a city or town name to find its online GIS maps and applications. If a city or town does not have its own app, MassGIS has created a "MuniMapper" -- a customized version of MassMapper for a municipality.
Updated version of our Statewide Wall Map (.PDF)
- Download this free PDF (34MB, page size is 42x33 inches). The layout has been updated with several "fun facts" about Massachusetts and a map showing percent population change by municipality from 2010 to 2020.
The main map displays standard basemap features (city and town and county boundaries, major roads and highways, major lakes and rivers, areas of permanently protected open space, watershed boundaries, hillshade, and other points of interest). Also included is an index to municipalities and an inset map featuring MBTA Rapid Transit and Commuter Rail lines and stops in the Greater Boston area.
Sexual Assault, Domestic Violence, and Human Trafficking Resource Viewer: View resources across MA for survivors of sexual assault, domestic violence and human trafficking.
- This web app, created by MassGIS for the Governor’s Council to Address Sexual Assault and Domestic Violence, contains housing support, rape crisis centers, hospitals with a Sexual Assault Nurse Examiner (SANE) program, and District Attorney's offices. It also contains the Filter and Near Me widgets to help survivors find facilities relevant to them. (Updated 11/6/2025)
Data updates
- Property Tax Parcels
September 2026 - 27 municipalities: Ashland, Brewster, Canton, Chelsea, Dennis, Douglas, East Brookfield, Edgartown, Essex, Franklin, Gill, Halifax, Harvard, Hopedale, Lunenburg, Mattapoisett, Nahant, Natick, New Bedford, Orleans, Quincy, Rehoboth (no new data, resolved issue causing dropped Assess records), Somerset, Swampscott, Swansea, Warren, and West Tisbury.
NOTE: As of the April 2026 update, MassGIS will begin replacing all .lyr files with .lyrx files in both the shapefile and file geodatabase downloads of municipal parcel data. ArcGIS Pro users will be able to use both, but ArcMap users will not be able to access the new .lyrx files. - TDI Districts
September 3, 2026 - New data layer of Transformative Development Initiative Districts, which delineate zones of community development and public investment focus within Gateway Cities throughout Massachusetts. - MBTA Communities (3A) District Atlas
August 31, 2026 - This collection of data layers, published in May 2026, contains parcel, district, and municipal-level information submitted by municipalities to demonstrate compliance with the MBTA Communities law (also known as Section 3A of the Zoning Act). The July 6 update added data for Hopkinton and West Bridgewater. The July 30 update added data for Auburn and Rowley. The August 31 update added data for Concord, Franklin, Freetown, and Rehoboth. - DA Districts
August 20, 2026 - New data layer of district attorney districts. - Hospitals
August 20, 2026 - New data layer with a complete schema overhaul of the attribute table. This data layer now includes all acute care and non-acute care hospitals as well as satellite emergency facilities and hospital inpatient units. The former Acute Care and Non-acute Care hospital layers have been deprecated and replaced. - Protected and Recreational Open Space
July 28, 2026 - Energy and Environmental Affairs GIS staff have updated the Protected and Recreational OpenSpace layers (arcs and polygons), available from MassGIS. Since the last publication to the web, staff at EEA and its associated agencies performed edits that improved the boundaries and/or descriptive geography to over 3,300 polygons in 221 municipalities, with a net increase of over 3,200 acres.
Shapefile and file geodatabase downloads represent data updated as of 7/28/2026.
The details:- Added or improved the boundaries and attributes of many types of recreational areas and open spaces with various levels of protection: 219 conservation areas, 16 water supply lands (both state and local)/watershed restrictions, 84 agricultural preservation restrictions (all types)/community gardens, 83 parks/beaches/rail trails, 76 conservation restrictions/easements and 68 cemeteries.
- EEA additionally updated the database with numerous EEA-sponsored programs: 9 Conservation Land Tax Credits, 6 Parkland Acquisitions and Renovations for Communities (PARC) grants, 8 Conservation Partnership grants, 5 Land and Water Conservation Fund grants, 2 Forest Reserve grants and 3 Local Acquisitions for Natural Diversity (LAND) grants.
- VA Centers
July 7, 2026 - New datalayer of Veterans Affairs (VA) centers within the Commonwealth. - VA Healthcare
July 7, 2026 - New datalayer of Veterans Affairs (VA) healthcare providers within the Commonwealth. - MHC Historic Inventory
June 4, 2026 - Massachusetts Historical Commission staff have completed a significant update to the towns of Boston, Holliston, Manchester, and Mattapoisett, reviewed and corrected data for some of the first towns to be digitized: Blackstone and Mattapoisett, and updates are in progress for Andover, Attleboro, Bridgewater, Middleborough, New Bedford, and Westport. - Hurricane Evacuation Zones
May 22, 2026 - Now available from MassGIS is this layer that represents areas that may be inundated by storm surge or isolated by storm surge waters. As a hurricane approaches, local or state officials may order evacuations of these areas. - Building Structures
May 21, 2026 - Updated with edits compiled atop MassGIS' spring 2025 imagery across the state (except Boston). - Colleges and Universities
May 20, 2026 - Update based on data downloaded from the National Center for Education Statistics (as of May 14, 2026) and data sent by the Massachusetts Office of Consumer Affairs and Business Regulation Division of Professional Licensure (last updated in August 2023). - Master Address Data Statewide Points for Geocoding
May 12, 2026 - Address locators available for ArcGIS Pro. When users request the data, the confirmation email will include links to the files. - 2025 Aerial Imagery
April 2, 2026 - The latest statewide color aerial imagery from MassGIS. Appears as a basemap option in MassMapper and ArcGIS Online apps.
April 20, 2026 - Color-infrared (CIR) web tile layer added. - 2020 U.S. Census Towns
March 9, 2026 - Based on changes to the source data from the U.S. Census Bureau, MassGIS edited the new GEOID20 values, names in NAMELSAD20, and 5-digit values in COUSUBFP20 in the polygon layer. - Massachusetts Community Lookup Table
March 6, 2026 - Updated to add "BY-THE-SEA" to records for the Town of MANCHESTER. - Dams
February 25, 2026 - Extensive review and revised attribute table. First major update since 2012. - Licensed Child Care Programs
February 17, 2026 - Extensive update, including schema updates, of locations of licensed child care programs based on a list provided by the Department of Early Education and Care (EEC). - Public Utility Service Providers
January 14, 2025 - Update based on data from the Massachusetts Department of Public Utilities from October 2025 and the Massachusetts Department of Telecommunications and Cable from January 2026. - Schools (Pre-K through High School)
December 19, 2025 - Update based on the Massachusetts Department of Elementary and Secondary Education (DESE) school profiles database as of November 5, 2025. - MassDEP Estimated Sewer System Service Area Boundaries
December 16, 2025 - Updates to this dataset that represents approximate service areas for sewer systems operated by publicly owned treatment works (POTWs), sewer districts and non-POTW systems. - Trains
October 31, 2025 - Updated the MBTA Commuter Rail point and line data to reflect the opening of the South Coast Rail route and made other spatial and attribute edits. - National Wetlands Inventory
September 23, 2025 - New data from the U.S. Fish & Wildlife Service as of 5/7/2025. - RMV Locations
September 22, 2025 - MassGIS moved the point for the Braintree Service Center to its new location.
July 14, 2025 - MassGIS moved the point for the Revere Service Center to its new location in Chelsea.
June 23, 2025 - MassGIS moved the point for the Milford Service Center to its new location. - MassDEP data layers
September 15, 2025 - Updates to the Public Water Supply Sources and Wellhead Protection Areas (Zone II, Zone I, IWPA) data, current as of 9/3/2025. - MassDEP data layers
August 28, 2025 - Updates to the Groundwater Discharge Permits data, current as of 8/27/2025, MassDEP Tier Classified Oil and/or Hazardous Material Sites (MGL c. 21E), and MassDEP Oil and/or Hazardous Material Sites with Activity and Use Limitations (AUL) data, current as of 8/26/2025. - Ice Rinks
August 11, 2025 - Extensive update and overhaul of the ice rinks dataset