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Geographic Information Systems (GIS)
Many Williamson County departments produce maps and geospatial data. The County's Geographic Information Systems (GIS) staff help departments by providing the infrastructure and tools to create the maps and data they need. Many of the data sets and maps on this site have the GIS staff as a contact, but the data is maintained by another department. In some cases, data may be created by other government agencies and compiled by the County.
This site is the clearinghouse for maps and data produced by different County departments. Maps used by various departments or the entire County are posted here when they have been cleared for public access. All information posted on this site is public domain and is free of charge.
GIS & Addressing
The GIS and Addressing staff work in the Department of Information Technology Services. The staff provides mapping, addressing, and analysis services to County departments and the public. For addressing requests, please use the form below.
- Web: Request Form page (you may still need to speak with staff)
Contact Information
Several County departments create maps and GIS data. The management of the GIS databases and general mapping is done by the GIS Division in Information Technology Services.
Each department is in charge of its data, maps, and processes. If you have a general question or are not sure who to call, please get in touch with the GIS Director or email the GIS Department (this email will reach several staff). In addition, please see the Links page for other entities' GIS information and contacts. For more specific County information, please see the contact list below.
Addressing Staff
If you need to obtain an address (to get telephone service, utility hookups, etc.) please contact the Addressing Staff.
Your contact options are:
- Web: Address Request Form page (you may still need to speak with staff)
- Email Addressing
- Phone: 512-943-3707 or 512-943-3708
- Office: 301 SE Inner Loop, Georgetown, Suite 107
View the Williamson County Inner Loop Annex Map (PDF) for more details.
- Where can I find Elections maps?
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The County's Elections Department has a lot of maps, and their own page to hold them. You can find the maps by going to the Elections page and clicking on maps, or going directly to the Elections map page.
- Does the County charge for maps or data?
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Some maps and data sets generated by departments are subject to a small cost recovery charge (reproduction, media, etc.). The charge depends on the amount calculated by the Department handling the request. For more information, please review the document, Charges for Public Maps and Data (PDF).
- Where can I get a large map printed?
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Many Kinkos and other office/copy stores have large format printers (called plotters). The "large" maps on this site can be printed natively at 24 inches by 36 inches. For more information, please review the document, Charges for Public Maps and Data (PDF).
- Where can I find more Williamson County and Central Texas data?
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Please see the Links page for other online GIS resources.
- Where can I learn more about GIS?
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ESRI's GIS page is a great start for more details.
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Addresses, Road Names, Subdivision Plats, Cities
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Geographic Information Systems (GIS)
Physical Address
301 SE Inner Loop
Suite 107
Georgetown, TX 78626
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George Strebel
GIS Manager