Texas 31st Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | −22.0% |
| 2012 | −30.8% |
| 2016 | −26.4% |
| 2020 | −17.9% |
| 2024 | −21.8% |
Federal officeholders only. State and local officeholders are planned for the next data pass.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
| Year | District | Won | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | 31 | R | 35.6%126,470 | 64.4%229,087 | 355,557 |
| 2022 | 31 | R | 0.0%0 | 100.0%183,185 | 183,185 |
| 2020 | 31 | R | 44.3%176,293 | 53.4%212,695 | 398,057 |
| 2018 | 31 | R | 47.7%136,362 | 50.6%144,680 | 286,007 |
| 2016 | 31 | R | 36.5%103,852 | 58.4%166,060 | 284,588 |
| 2014 | 31 | R | 32.0%45,715 | 64.0%91,607 | 143,028 |
| 2012 | 31 | R | 35.0%82,977 | 61.3%145,348 | 237,187 |
| 2010 | 31 | R | 0.0%0 | 82.5%126,384 | 153,119 |
| 2008 | 31 | R | 36.6%106,559 | 60.3%175,563 | 291,304 |
| 2006 | 31 | R | 38.8%60,293 | 58.5%90,869 | 155,383 |
| 2004 | 31 | R | 32.5%80,292 | 64.8%160,247 | 247,427 |
| 2002 | 31 | R | 27.4%44,183 | 69.1%111,556 | 161,484 |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 44.6%5,031,249 | 53.1%5,990,741 | 11,291,854 |
| 2020 | R | 43.9%4,888,764 | 53.5%5,962,983 | 11,144,040 |
| 2018 | R | 48.3%4,045,632 | 50.9%4,260,553 | 8,371,655 |
| 2014 | R | 34.4%1,597,387 | 61.6%2,861,531 | 4,647,370 |
| 2012 | R | 40.6%3,194,927 | 56.5%4,440,137 | 7,864,822 |
| 2008 | R | 42.8%3,389,365 | 54.8%4,337,469 | 7,912,075 |
| 2006 | R | 36.0%1,555,202 | 61.7%2,661,789 | 4,314,663 |
| 2002 | R | 43.3%1,955,758 | 55.3%2,496,243 | 4,512,590 |
| 2000 | R | 32.3%2,025,024 | 65.1%4,078,954 | 6,267,964 |
| 1996 | R | 43.9%2,428,776 | 54.8%3,027,680 | 5,527,441 |
| 1994 | R | 38.3%1,639,615 | 60.8%2,604,218 | 4,279,940 |
| 1990 | R | 37.4%1,429,986 | 60.2%2,302,357 | 3,821,432 |
| 1988 | D | 59.2%3,149,806 | 40.0%2,129,228 | 5,323,023 |
| 1984 | R | 41.4%2,202,557 | 58.5%3,111,348 | 5,314,178 |
| 1982 | D | 58.6%1,818,223 | 40.5%1,256,759 | 3,103,040 |
| 1978 | R | 49.3%1,139,149 | 49.8%1,151,376 | 2,312,540 |
| 1976 | D | 56.8%2,199,956 | 42.2%1,636,370 | 3,874,230 |
Texas's 31st stretches across fast-growing Williamson County north of Austin, where an influx of tech-sector workers has compressed a margin that once ran well into double digits, making it a closely watched bellwether for suburban realignment statewide.
Across the recorded series it reached a Republican high of 30.8 points in 2012. Between 2020 and 2024 the district moved 3.9 points toward the Republican candidate; the 2024 margin was 21.8 points.
A population of 766,584, a 59% non-Hispanic-white share, and a median household income of $89,597 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 10 and Congressional District 26.
The congressional 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 31st Congressional District. Akashic. https://akashic.app/cd/4831/. Accessed May 20, 2026. License: CC BY 4.0.