2 candidates are tracked for Texas House District 31, headed to a November 3, 2026 runoff: Ryan Guillen and Jennifer "Jj" Dominguez. Candidate information follows official Starr County election filings; verify with the official election office linked below.
Ryan Guillen (Republican), Jennifer "Jj" Dominguez (Democratic) are on the November 3 ballot for Texas House District 31; Ryan Guillen 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.
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, Ryan Guillen, is on the ballot.
Texas › Starr County › Texas House District 31
Republican Incumbent
Ryan Guillen represents Texas House District 31 in South Texas. He worked as a high school agriculture teacher and on his family's feed store and ranch before entering the Legislature, per his campaign site, and holds an agriculture degree from Texas A&M University. He currently chairs the House Committee on Homeland Security and Public Safety, per his campaign site.
Democratic
Jennifer "JJ" Dominguez is the Democratic nominee for Texas House District 31 and chairs the Wilson County Democratic Party, per the Wilson County News. No campaign website was found as of September 20, 2026.
Who is running for Texas House District 31 in 2026?
2 candidates are tracked for Texas House District 31, headed to a November 3, 2026 runoff: Ryan Guillen and Jennifer "Jj" Dominguez. Candidate information follows official Starr County election filings; verify with the official election office linked below.
When is the Texas House District 31 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 Starr 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.
Candidate roster from official Starr County and state election office filings. Bios and priorities carry their attribution inline.
Cross-check with the official Texas election office, or see the full Starr County sample ballot and your exact ballot by address.
3 tracked races in Starr County, Texas. Landed here from another county's search? Look up your own ballot below.