Texas 121st State House District
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | −38.0% |
| 2008 | −24.0% |
| 2012 | −29.3% |
| 2016 | −13.3% |
| 2020 | −2.3% |
| 2024 | −5.0% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| R | 47.0%Harris47,306 | 51.9%Trump52,297 | 1.1% | R+5.0 | R+2.6 | R+3.5 | 100,758 | |
| R | 48.2%Biden50,140 | 50.6%Trump52,557 | 1.2% | R+2.3 | D+10.9 | R+6.8 | 103,946 | |
| R | 40.2%Clinton33,717 | 53.5%Trump44,837 | 6.3% | R+13.3 | D+16.0 | R+15.4 | 83,853 | |
| R | 34.5%Obama25,830 | 63.9%Romney47,743 | 1.6% | R+29.3 | R+5.3 | R+33.2 | 74,770 | |
| R | 37.9%Obama27,769 | 61.9%McCain45,376 | 0.3% | R+24.0 | D+14.0 | R+31.3 | 73,360 | |
| R | 30.7%Kerry20,068 | 68.7%Bush44,860 | 0.5% | R+38.0 | — | R+35.5 | 65,287 |
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Texas House District 121, anchored in northern Bexar County, recorded an R+13.1 presidential margin in 2024 — a tighter spread than many neighboring districts, reflecting the demographic churn reshaping San Antonio's outer suburbs.
Across the recorded series it reached a Republican high of 38.0 points in 2004. Between 2020 and 2024 the district moved 2.6 points toward the Republican candidate; the 2024 margin was 5.0 points.
A population of 203,209, a 48% non-Hispanic-white share, and a median household income of $98,047 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 122 and State House District 129.
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Texas 121st State House District. Akashic. https://akashic.app/sld-lower/48121/. Accessed May 20, 2026. License: CC BY 4.0.