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DC GIS Services

The District of Columbia Geographic Information System (DC GIS) provides District agencies and the public geospatial data and enterprise applications.  GIS empowers policymakers and implementers with data and application tools to support better decision-making and performance. Learn how GIS improves quality and lowers the cost of services provided by the DC Government by visiting the links below.  Please read our Terms of Service or contact us by email.

Email Updates

OCTO wants to ensure its customers are informed when we make changes to services, perform upgrades, publish new data or find opportunities for you to learn more. Sign up to receive these occasional updates and manage your subscriber preferences.

Featured Geospatial Data, Tools and Services


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Monday to Friday, 9 am to 4 pm