GIS is used in emergency planning for the Fire Department and crime analysis for the Police Department, as well as many other applications. GIS can also be accessed online. Please visit the interactive maps page and see GIS data in action. There, one can find an address, locate a water line, or view the latest zoning. It is also possible to view Tarrant County appraisal data, as well as labor market and census information for the area. If you have any questions or want to know more about GIS in Colleyville, please contact the GIS coordinator at 817.503.1104.