The Ballot Brief
Bexar County, Texas

Texas House District 121

TexasBexar County › 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.

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.

Zack Dunn

Democratic

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.

2026 priorities (per the San Antonio Report)

Source: candidate campaign site, roster verified 2026-09-06.

Campaign site →
Marc Lahood

Marc Lahood

Republican · Incumbent

Marc Lahood is the Republican candidate for Texas House District 121 on the November 3, 2026 ballot, per the Texas Secretary of State's certified 2026 General Election candidate list. Marc Lahood is a sitting member for the district, per the Texas House of Representatives' official roster. No campaign website or questionnaire response was found as of September 11, 2026.

Verify this race
Candidate roster from official Bexar County Supervisor of Elections filings, last verified 2026-09-06. 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.