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Williamson County Addressing

Williamson County GIS & Addressing staff provides the addressing for the unincorporated areas of the County as well as for several of the smaller incorporated Cities. Our addressing staff is currently awaiting final approval of Williamson County 9-1-1 Addressing Guidelines, however; the draft version can be located here

In addition, the staff maintains the master address database that drives the 9-1-1 telephone system for the entire County.

If you need to obtain an address (to get telephone service, utility hook ups etc.) please contact the Addressing Staff.

Your contact options are:
Web: Request Page (you may still need to speak with staff)
Phone:  (512)
Office: 301 SE Inner Loop, Georgetown, Suite 107
Directions and Location Map


Valid Address Search

This tool allows you to search for all valid addresses at the time of the data load (the data is updated approximately once per month). If you need the most current, up-to-the-minute data, please contact us.

You can use this site to print a letter certifying your address.

Click here to launch the GIS & Addressing Search

Looking for information regarding street names?

Williamson County Addressing Department does not allow street names that are duplicated in the County. There are two ways to verify if a street name is in use or reserved. PLEASE keep in mind that all street names in the County must still be approved through our office, these are just provided to help expedite service in selecting street names.

Click Here to Search Current Street Names

Click Here to Search Current Reserved Street Names (This will be in an Excel Spreadsheet)

The Excel spreadsheet is broken down by City or County tabs (listed at the bottom- make sure to search within the entire worksheet) for Reserved Streets Only. 

For more information, please contact our Addressing Department.


Inner Loop Annex
GIS Department

301 SE Inner Loop
, Suite 107
Georgetown, TX 78626
Phone: (512) 943-3707
Driving Directions

Download PDF Map

Business Hours:

8am to 5pm Monday - Friday

Click here
for full contact information.

General Questions/Inquiries
GIS Staff

GIS Manager
(512) 943-1474

Teresa Baker
(512) 943-3707
Addressing Page

Chris Davis
Elections Administrator
(512) 943-1630
Elections Page

Williamson County Courthouse
710 Main Street Georgetown, TX 78626
Main Telephone: (512)943-1100
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