Cynthia Castro (Texas)

Cynthia Castro

Democratic Party

Candidate, Bexar County Clerk

Elections and appointments

Last election

March 3, 2026

Next election

May 26, 2026

Education

Associates

Del Mar College, 2004

Bachelor's

University of the Incarnate Word, 2006

Personal

Profession

Legal assistant

Contact

Campaign website

Campaign Facebook

Cynthia Castro (Democratic Party) is running for election for Bexar County Clerk in Texas. Castro is on the ballot in the Democratic primary runoff on May 26, 2026. Castro advanced from the Democratic primary on March 3, 2026.

Castro completed Ballotpedia's Candidate Connection survey in 2026. Click here to read the survey answers.

Biography

Cynthia Castro earned an associate degree from Del Mar College in 2004 and a bachelor's degree from the University of the Incarnate Word in 2006. Castro's career experience includes working as a legal assistant.

Elections

2026

See also: Municipal elections in Bexar County, Texas (2026)

General election

The primary will occur on May 26, 2026. The general election will occur on November 3, 2026. General election candidates will be added here following the primary.

The candidate list in this election may not be complete.

Democratic primary runoff

The candidate list in this election may not be complete.

Democratic primary runoff for Bexar County Clerk

Incumbent Lucy Adame-Clark (D) and Cynthia Castro (D) are running in the Democratic primary runoff for Bexar County Clerk on May 26, 2026.

		Candidate
		Lucy Adame-Clark
		Cynthia Castro

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	Incumbents are bolded and underlined.
= candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.
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Democratic primary

The candidate list in this election may not be complete.

Democratic primary for Bexar County Clerk

Incumbent Lucy Adame-Clark (D) and Cynthia Castro (D) advanced to a runoff. They defeated Mari Sanchez Belew (D) in the Democratic primary for Bexar County Clerk on March 3, 2026.

		Candidate	%	Votes
✔		Lucy Adame-Clark	46.5	72,349
✔		Cynthia Castro	38.7	60,280
		Mari Sanchez Belew	14.8	23,073

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	Incumbents are bolded and underlined. Source	Total votes: 155,702
= candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.
Do you want a spreadsheet of this type of data? Contact our sales team.

Republican primary

The Republican primary scheduled for March 3, 2026, was canceled.

Endorsements

Ballotpedia is gathering information about candidate endorsements. To send us an endorsement, click here.

Campaign themes

2026

Ballotpedia survey responses

See also: Ballotpedia's Candidate Connection

Cynthia Castro completed Ballotpedia's Candidate Connection survey in 2026. The survey questions appear in bold and are followed by Castro's responses.

Expand all | Collapse all

Who are you? Tell us about yourself.

I am a graduate of the University of the Incarnate Word and earned a bachelor's degree in business and a paralegal specialty degree. I bring 22 years of legal and business experience with a concentration in civil litigation, and I currently serve as a Senior Litigation Manager for a Fortune 100 company specializing in insurance and financial services. I’ve attended numerous trials involving complex cases in Texas and throughout the United States. I have extensive experience analyzing and evaluating legal issues, conducting root cause analysis, and executing plans to mitigate risk. My professional background also includes strong experience in criminal and civil procedures, compliance, leading teams, and managing confidential, proprietary, and sensitive documents while ensuring that legal standards are met every single day. I also have extensive file management experience at the county, state, and federal levels. My education and successful business and legal career are accomplishments I value deeply and am grateful for. I am the proud daughter of a Purple Heart Marine Corps Vietnam Veteran who taught me the values of service, discipline, integrity and perseverance. My mother, who taught me to lead with love and that honesty is the foundation of trust, is from Mexico, and through her I became fluent in Spanish. I am proud of my Latina heritage which has greatly shaped who I am both personally and professionally. I am a wife and mother of 3 beautiful children.

Please list below 3 key messages of your campaign. What are the main points you want voters to remember about your goals for your time in office?

• I bring hands-on experience with court processes, trials, researching records, and comprehensive file management. My profession requires strict adherence to procedural requirements and confidentiality standards. I have experience with document processing procedures including court documents, assumed name filings, and public records while ensuring accuracy, compliance, and security of records. My legal background also includes extensive experience of e-filing court documents at all levels of the court systems. This background equips me to manage the clerk's office with efficiency and a strong focus on service to the public.
• I would approach the role of County Clerk with a service-driven leadership style grounded in my extensive legal, risk management and operational experience. Having worked closely with court processes/public records, I understand the importance of accuracy, compliance, timeliness in every function of the office. As a present/accessible leader, I would prioritize ongoing training and development for staff, ensuring employees are well versed in court procedures, maintaining public records and electronic filing systems. My background managing complex legal workflows and confidential information allows me to establish clear processes, accountability and consistencies; while supporting employees to serve the public efficiently and confidently.
• Throughout my career, I have developed the experience to identify operational gaps, leadership deficiencies, and opportunities to modernize processes/technology. For several years, many counties across Texas have provided transparency/accessibility to public records. Yet the County Clerk’s Office is behind in offering the same level of accessibility. Our community deserves a Clerk's Office that is modern, efficient, and responsive. Equally important is a present/engaged leader. When current leadership practices include attending outside events unrelated to core office responsibilities, it creates disadvantages and increases risks, such as the breach of sensitive records we've experienced on several occasions since 2020.

What areas of public policy are you personally passionate about?

I am deeply passionate about equality and dignity in public service. I believe government should treat every person with fairness, respect, and compassion - without labels, assumptions or divisions. My approach to public policy is rooted in the belief that we are all part of the same community, and when we lead with empathy and love, we create systems that work better for everyone. Public service, at its core, is about people, and my commitment is to serve every individual with the same level of care, love, access and respect. We are all equal.

Note: Ballotpedia reserves the right to edit Candidate Connection survey responses. Any edits made by Ballotpedia will be clearly marked with [brackets] for the public. If the candidate disagrees with an edit, he or she may request the full removal of the survey response from Ballotpedia.org. Ballotpedia does not edit or correct typographical errors unless the candidate's campaign requests it.

Campaign website

Castro's campaign website stated the following:

El Liderazgo y la Experiencia Importan.

Leadership and Experience Matter.

True leadership means investing in staff training and development, fostering a culture of collaboration, identifying risks early, knowing when to pivot and adapt to changes, being prepared and accountable, and leading from the front - not from behind the scenes. 

​

My profession requires strict adherence to procedural requirements and confidentiality standards. I have experience with document processing procedures including court documents, assumed name filings, and public records while ensuring accuracy, compliance, and security of records. This background equips me to manage the clerk's office with efficiency and a strong focus on service to the public.

 

I would approach the role of County Clerk with a service-driven leadership style grounded in my extensive legal, risk management and operational experience. Having worked closely with court processes and public records, I understand the importance of accuracy, compliance, and timeliness in every function of the clerk's office. As a present and accessible leader, I would prioritize ongoing training and development for staff, ensuring employees are well versed in court procedures, maintaining public records and electronic filing systems. My background managing complex legal workflows and confidential information allows me to establish clear processes, accountability and consistencies, while supporting employees with tools and training they need to serve the public efficiently and with confidence.

​

I humbly ask for your vote. I would be honored to serve as your County Clerk, bringing my education, experience and values to provide the leadership Bexar County deserves.  

— Cynthia Castro's campaign website (February 18, 2026)

Note: This text is quoted verbatim from the original source. Any inconsistencies are attributable to the original source.

See also

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Candidate

Bexar County Clerk

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