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Commissioner Precinct 1, Terry Cook

Terry firmly believes elected officials should be responsive to all of the people they represent. She is committed to making the duties and responsibilities of her elected office top priorities. As a member of the Williamson County Commissioners Court, Terry will be working tirelessly to ensure that the Court manages county business and its resources consistent with her vision for all county residents, which is that they be treated in a fair and non-partisan manner. Making certain that our county funds are used responsibly, Terry pledges to keep Williamson County a place where every man, woman, and child enjoys fulfilling and high-quality living, without onerous tax and debt burdens.

With a master’s degree in biomedical engineering from Duke University, Terry worked in research and high-tech industries for more than twenty years. Her extensive experience includes budgeting, managing people and projects, and negotiating contracts with both large and small companies. In addition, she was a Colorado Master Gardener in a county with the most extensive public outreach program in the state. To her list of credentials can be added planning and designing public parks, as well as management of open spaces. Terry has also gained a valuable business perspective as a small business owner here in Williamson County.
Terry strongly urges civic engagement for everyone. Throughout the years, she has been a volunteer deputy voter registrar for Bell, Travis, and Williamson Counties, registering voters from all over the region. She has also volunteered as an elections clerk and an alternate judge during Williamson County elections
Terry and her husband, Wayne, have called Round Rock their home for over eleven years. She enjoys interior and landscape design, unique dining experiences, traveling, Bible study, live theatre, and music.




To lead pro-actively on the Williamson County Commissioners Court while advocating for the constituents of Precinct 1 and the county at-large from a foundation of collaboration and respect



To transform Williamson County government into a more accessible, responsive, transparent, and well-managed organization for our residents, so that we become the community recognized as the best in central Texas to live and enjoy.



Accountability, commitment, integrity, and respect form the core values that guide the Williamson County Commissioner Precinct 1 office.

Author: Created: 9/27/2010 9:40 AM RssIcon
A collection of news and events in Precinct 1
2/10/2017 2:31 PM

As a newly sworn-in Williamson County Commissioner, I was recently invited to my first ribbon cutting in Round Rock. Many times, these events celebrate new businesses that will offer employment opportunities. In this case, we commemorated a unique apartment complex designed to aid in breaking the cycle of poverty for working families through quality, accessible and affordable housing with on-site educational support.

2/10/2017 2:16 PM

The Austin American-Statesman recently did a profile on the newest county commissioner. Click here to view the full interview by Brad Stutzman.

2/3/2017 9:15 AM
The Williamson County Commissioners Court approved the appointment of Commissioner Terry Cook, Precinct 1, to the Central Texas Clean Air Coalition on January 31, 2017.

The Central Texas Clean Air Coalition (CAC) of the Capital Area Council of Governments (CAPCOG) is a voluntary association of organizations that support the regional effort toward improvement of air quality in Bastrop, Caldwell, Hays, Travis, and Williamson counties. Members of the Coalition support the regional effort toward improvement of air quality in central Texas.

“I am excited to be a member of an organization dedicated to studying issues and making recommendations to improve our air quality,” said Commissioner Cook. “The work of this group is critical to sustaining our area’s quality of life today and in the future.”

The purpose of the CAC is to:

Develop, adopt, and implement clean air plans to achieve and maintain compliance with federal ground-level ozone standards. Establish and monitor a regional...
1/24/2017 2:47 PM

On a warm January 2, 2017, morning, Terry Cook proudly took the oath of office at 10:51 a.m. to become Williamson County Commissioner of Precinct 1. About fifty of her supporters cheered her on in a standing-room only courtroom that overflowed with visitors into the balcony and hallway. Commissioner Cook was one of thirteen elected officials who were sworn in at the Williamson County Historic Courthouse on the second floor in the 26th District Court in Georgetown. 


Commissioner Precinct One


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Williamson County Jester Annex
Terry Cook
Commissioner Precinct One
1801 East Old Settlers Blvd.
Suite  #110
Round Rock, TX 78664
Phone: (512) 244-8610
Fax: (512) 244-8616
Driving Directions

Doris Sanchez
Communications Specialist
(512) 244-8610 Direct Line

Garry Brown
Executive Assistant
(512) 244-8615


Other Precinct One Offices

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