Detroit, MI launched its open data portal

ArcGIS

GIS software for creating maps, conducting spatial analysis and sharing intelligent visualizations.

City Governments Making Public Data Easier To Get: 90 Municipal Open Data Portals

In the past decade, dozens of American cities have established open data portals, making it easier for the public to obtain information about government activity.

Open data: How access to public data is growing in Detroit

For years, Detroiters had a hard time getting reliable data in a digestible format. But thanks to greater transparency from city government, and the work of a host of other companies and organizations, access to data has never been better.