Round Rock, Texas
Presidential margin, 2004–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 2004 | −24.8% |
| 2008 | −2.0% |
| 2012 | −9.6% |
| 2016 | +4.4% |
| 2020 | +16.4% |
| 2024 | +13.0% |
| Year | Won | Democratic | Republican | Other | Margin | Swing | vs U.S. | Total |
|---|---|---|---|---|---|---|---|---|
| D | 55.4%Harris27,704 | 42.3%Trump21,189 | 2.3% | D+13.0 | R+3.3 | D+14.5 | 50,034 | |
| D | 57.3%Biden29,459 | 40.9%Trump21,045 | 1.8% | D+16.4 | D+11.9 | D+11.9 | 51,435 | |
| D | 48.1%Clinton18,240 | 43.6%Trump16,558 | 8.3% | D+4.4 | D+14.1 | D+2.3 | 37,955 | |
| R | 43.7%Obama14,415 | 53.3%Romney17,591 | 3.0% | R+9.6 | R+7.6 | R+13.5 | 33,001 | |
| R | 48.8%Obama14,916 | 50.8%McCain15,542 | 0.4% | R+2.0 | D+22.7 | R+9.3 | 30,585 | |
| R | 37.3%Kerry9,168 | 62.1%Bush15,259 | 0.6% | R+24.8 | — | R+22.3 | 24,577 |
Round Rock has absorbed waves of Dell-era and post-pandemic in-migrants, pushing registration patterns away from the historically Republican baseline that defined Williamson County for decades.
Across the recorded series it reached a Democratic high of 16.4 points in 2020 and a Republican high of 24.8 points in 2004. Between 2020 and 2024 the city moved 3.3 points toward the Republican candidate; the 2024 margin was 13.0 points.
A population of 127,786, a 48% non-Hispanic-white share, and a median household income of $99,287 describe the city. The city's voting pattern over the last decade is most similar to that of Lewisville and Denton.
The cities 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.
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Round Rock, Texas. Akashic. https://akashic.app/city/4863500/. Accessed May 20, 2026. License: CC BY 4.0.