Bexar County, Texas

Texas House District 121

2 candidates are tracked for Texas House District 121, headed to a November 3, 2026 runoff: Zack Dunn and Marc Lahood. Candidate information follows official Bexar County election filings; verify with the official election office linked below.

About this race

Zack Dunn (Democratic), Marc Lahood (Republican) are on the November 3 ballot for Texas House District 121; Marc Lahood is the sitting member, per the Texas House of Representatives' official roster. Nominees were chosen at the March 3 primary (or a May 26 runoff) or advanced unopposed; the field is the Texas Secretary of State's certified 2026 General Election candidate list. This seat is elected by district; only the district covering your address appears on your ballot.

What this office does

State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.

This race. Elected by district: only voters who live in the district see this race on their ballot. The sitting officeholder, Marc Lahood, is on the ballot.

Texas › Bexar County › Texas House District 121

Zack Dunn

Democratic

Top priorities

Ensure service members, veterans and their families receive comprehensive care
Attract high-paying jobs and strengthen workforce development
Support policies protecting domestic violence and sexual assault victims

Per the San Antonio Report.

Biography

Zack Dunn is a Special Victims Unit prosecutor at the Bexar County District Attorney's Office focusing on domestic violence and sexual assault cases, according to the San Antonio Report. A University of Pennsylvania Law School graduate and former U.S. Air Force attorney, he is the Democratic nominee for Texas House District 121, challenging Republican incumbent Marc LaHood.

Campaign site (opens in a new tab)

Marc Lahood

Republican Incumbent

Top priorities

human trafficking enforcement
addressing inflation
property tax reduction and appraisal reform

Per the campaign site.

Biography

Marc Lahood is the Republican candidate for Texas House District 121 and the sitting state representative. He is a criminal defense attorney practicing in state and federal courts across Texas and a 2007 graduate of St. Mary's University School of Law, per his campaign site. He previously ran for Bexar County District Attorney in 2022.

Campaign site (opens in a new tab)

Next on your ballotTexas House District 122

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Voting info and more

Questions about this race

Who is running for Texas House District 121 in 2026?

When is the Texas House District 121 election in Texas?

Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Texas are on the Texas election hub at theballotbrief.com.

How do I see my exact Bexar County ballot?

Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.

Verify this race

Candidate roster from official Bexar County and state election office filings, last verified September 29, 2026. Bios and priorities carry their attribution inline.

Cross-check with the official Texas election office, or see the full Bexar County sample ballot and your exact ballot by address.

The rest of your Bexar County ballot

20 tracked races in Bexar County, Texas. Landed here from another county's search? Look up your own ballot below.

Also on your ballot

Texas House District 123 Texas House District 124 Texas House District 125 See all 20 Bexar County races

Candidate profiles

Zack Dunn, full profile Marc Lahood, full profile Official Texas election office