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Geographic Information Systems (GIS) 

City Development Geographic Information Services (GIS) Division is responsible for the collection, research, development and maintenance of the City’s geographic data supporting City-wide goals, projects and programs to assist City staff in making informed decisions about our community.

Click here to see the City of Thornton's new interactive maps.

The City’s GIS Support Team provides customer service and support throughout the organization by offering a centralized depository of geospatial information supporting GIS users at all levels, and by forming cooperative partnerships with City staff, citizens and other public and private agencies.

GIS Enterprise Contributors

GIS Services receives hardware/software and programming support from:


Geographic Resources


GIS Services maintains a variety of standard maps and provides many of the most commonly requested map resources of the City on the City’s website free of charge. On-line maps are available in pdf format and range in size from 8.5x11 to 11x17.

See our GIS Map Catalog or List of GIS Maps  

A Fee Schedule provides costs associated with the purchase of large format hardcopy prints and digital geographic data and Identifies the list of digital data layers included on the CD ROM. GIS maps made by City staff using the City’s Intranet web map application and emailed to customers are free.  


The City manages a large inventory of geographic data about our community. A portion of the data is available on CD ROM.

See our GIS Data Layers page



Current Projects

Completed Projects

On-Going Projects

GIS Data Submission Standards

Much of the information generated today is in some type of digital format ranging from word documents to Computer Aided Drafting (CAD) technology. The City of Thornton requires developers, consultants and engineers to submit subdivisions, asbuilt drawings, development plans or digital  information generated by City consultants for Planning and Parks and Open Space projects.  Geographic data submitted to the City must include geographic coordinates and standardized data types which can be uploaded into the City GIS. Please refer to the GIS Data Submission Standards for details.


City of Thornton
9500 Civic Center Drive, Thornton, CO 80229
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