The State Organization Index provides an alphabetical listing of government organizations, including commissions, departments, and bureaus.
Top-requested sites to log in to services provided by the state
Resources for accessing, using and exploring mapping data collected by the Commonwealth.
MassGIS is the state’s one-stop-shop for interactive maps and geospatial data. You can view and explore our extensive library of map information in OLIVER and other web maps. GIS users can access data and web services for your software and applications. We also coordinate GIS activities in state and local government and set GIS data standards.
MassGIS provides a wide variety of GIS data layers that you can use in your own software and web map applications.
As the Commonwealth’s Bureau of Geographic Information, MassGIS has the formal legislatively assigned authority and mandate to set standards for the acquisition, management, and reporting of geographical information.
In addition to OLIVER, MassGIS hosts many interactive maps that have map layers relevant to a single topic.
A collection of GIS and mapping resources for Massachusetts municipalities. Other politicial subdivisions of the commonwealth may also participate.
Transportation related spatial information is provided by MassDOT GIS Services for all modes of travel throughout Massachusetts
Massachusetts Office of Coastal Zone Management (CZM) provides a variety of mapping and data management services.
If you need to report child abuse, any other kind of abuse, or need urgent assistance, please click here.