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.


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What is MD iMap?

The Maryland Integrated Map (MD iMap) is an enterprise statewide mapping system that supports the efforts of Maryland agencies and local governments in providing services to Marylanders and in tracking progress towards strategic policy goals.

The Vision of MD iMap​

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Office of Governor

MD iMap in the News

New default locator for Maryland AGOL now available: MD cascading locator now includes Esri world locator

More News...

Service Alerts

  • No Alerts At This Time​

Upcoming Events

  • MD iMap Technical Committee Meetings are held on the 1st or 3rd Tuesdays from 1:00 - 3:00 at MDE.
  • MD iMap Executive Committee Meeting - TBD
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