Welcome to Maryland's Mapping & GIS Data Portal
Attention: MD iMap 2.0 is in development...
Data and services will be changing to make MD iMap a more user-friendly environment. These changes will impact GIS analysts, developers and applications.
The current MD iMap environment will be decommissioned on August 29, 2014.
Please visit the MD iMap 2.0 page for more information regarding these changes.
One Maryland - One Map
Our Mission is to:
1) Improve the quality and lower the cost of services, through collective investment in and effective application of geographic data and systems and
2) The Maryland Geographic Information Office (GIO) will reach beyond government by making data freely and publicly available to the fullest extent possible in consideration of privacy and security.