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TNMap serves as the portal for accessing downloadable GIS datasets, web applications, data services, and the State's ArcGIS Online organization.

The primary goal for this site is to serve the GIS community in Tennessee. Your comments are welcome. Please let us know if you have suggestions or additional information that may be useful for us to post on this site.

Recent News

Tennessee Awarded USGS Grant

The Department of Finance and Administration, STS - GIS Services has been awarded a $670,000 grant to support geospatial data development in Tennessee. Through the US Geological Survey (USGS) and their 3D Elevation Program (3DEP), LiDAR (Light Detection and Ranging) data will be collected in 27 counties primarily along the Cumberland Plateau region of the State. Additional collaborative funding to support this $2.7 million dollar project is coming from the Tennessee Department of Transportation, Tennessee Department of Environment and Conservation, the Tennessee Valley Authority, Department of Energy, Department of Agriculture, Hamilton County, and STS.

The 3D lidar data will be used to support a wide range of geospatial functions including: floodplain mapping, transportation planning, environmental assessment, stormwater management, forestry, agriculture, and economic development. Through this project, the Tennessee Base Mapping Program, managed by STS - GIS Services is continuing its rich history of developing large scale geospatial data in Tennessee. To learn more about GIS in Tennessee you can visit us at

ConnectED Commitment by Esri to Provide Free Educational Software to Every K-12 School in America

In continuing its support of education, and in line with the President�s ConnectED vision of opening new opportunity through technology in the classroom, Esri will provide to every U.S. K-12 school in America free access to ArcGIS Online Organization accounts � the same GIS technology as used by government and business. These allow users to map and analyze data, create and share content, and collaborate in the cloud -- via computers, tablets, or smartphones, anytime, anywhere connected. This commitment expands on Esri�s successful program in pilot schools at all levels across the country, and will allow students to do projects of unlimited content, from global to local, building community, as well as knowledge and skills for college and career.

More information is available at and

Resources to help schools get started with ArcGIS Online are available at

In conjunction with this initiative, we encourage Esri customers and staff to become GeoMentors who volunteer to help schools set up their ArcGIS Online account, provide data for the local community, and provide local expertise. More information about the GeoMentor program is at

ArcGIS Online subscriptions for K-12 schools include 500 named users. The July release of ArcGIS Online will include a new custom role ("Student") and new account administration tools for managing student accounts.

TNMap ArcGIS Online Portal

TNMap hosted map services and web applications have been registered with ESRI's ArcGIS Online service for easier searching and access.

Click here to see our ArcGIS Portal.

New Mobile Tennessee Parcel Viewer

The Mobile Tennessee Parcel Viewer ( allows users to find property data from an intuitive workflow or directly from the map itself. The interactive map can also pinpoint a user�s location using HTML5 technology, allowing them to get the details of property in their immediate vicinity.

Try it out and let us know what you think!

2012 Redistricting GIS Data Now Available
The General Assembly has passed into law the new Tennessee House, Senate, and US Congressional districts based on the 2010 decennial census demographic data provided by the US Census Bureau. These districts are effective for the 2012 election cycle. GIS users can download these data products in either Esri .shp file or Google .KML formats.

Click here to go to the downloads page.