The MetroBoston DataCommon is Data Services' flagship website, which features an extensive, searchable catalog of data on topics ranging from housing and transportation to arts and education. The DataCommon is a resource for anyone wishing to better understand how the region and its communities are changing. Visitors can download data, view and create interactive visualizations, and explore maps about pressing topics in the region. The ever-popular Community Snapshots provide dozens of statistics for every city and town in the region, along with comparison statistics for nearby and similar municipalities.

Data Services is currently working to expand the functionality of the data catalog and the site's mapping capabilities.