Texas 18th Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | +65.5% |
| 2012 | +66.1% |
| 2016 | +67.3% |
| 2020 | +63.9% |
| 2024 | +54.9% |
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 | 18 | D | 69.4%151,834 | 30.5%66,810 | 218,720 |
| 2022 | 18 | D | 70.7%110,511 | 26.2%40,941 | 156,268 |
| 2020 | 18 | D | 73.3%180,952 | 23.5%58,033 | 246,895 |
| 2018 | 18 | D | 75.2%138,704 | 20.8%38,368 | 184,332 |
| 2016 | 18 | D | 73.5%150,157 | 23.6%48,306 | 204,308 |
| 2014 | 18 | D | 71.8%76,097 | 24.8%26,249 | 106,010 |
| 2012 | 18 | D | 75.0%146,223 | 22.6%44,015 | 194,932 |
| 2010 | 18 | D | 70.2%85,108 | 27.3%33,067 | 121,321 |
| 2008 | 18 | D | 77.3%148,617 | 20.3%39,095 | 192,198 |
| 2006 | 18 | D | 76.6%65,936 | 19.1%16,448 | 86,051 |
| 2004 | 18 | D | 88.9%136,018 | 6.4%9,787 | 152,988 |
| 2002 | 18 | D | 76.9%99,161 | 21.7%27,980 | 128,926 |
| 2000 | 18 | D | 76.5%131,857 | 22.2%38,191 | 172,378 |
| 1998 | 18 | D | 89.9%82,091 | 0.0%0 | 91,267 |
| 1994 | 18 | D | 73.5%84,790 | 24.4%28,153 | 115,390 |
| 1992 | 18 | D | 64.7%111,422 | 32.6%56,080 | 172,208 |
| 1990 | 18 | D | 99.6%54,477 | 0.0%0 | 54,720 |
| 1988 | 18 | D | 92.9%94,408 | 0.0%0 | 101,643 |
| 1986 | 18 | D | 90.2%63,335 | 0.0%0 | 70,219 |
| 1984 | 18 | D | 78.8%109,626 | 19.0%26,400 | 139,110 |
| 1982 | 18 | D | 82.6%68,014 | 14.7%12,104 | 82,335 |
| 1980 | 18 | D | 79.9%71,985 | 17.9%16,128 | 90,096 |
| 1978 | 18 | D | 96.8%36,783 | 0.0%0 | 38,018 |
| 1976 | 18 | D | 85.5%93,953 | 14.0%15,381 | 109,876 |
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 |
Anchored in inner Houston, TX-18 is one of the most reliably Democratic seats in the state, with a majority-minority population and dense urban precincts that have delivered 40-plus-point presidential margins for over a decade.
Across the recorded series it reached a Democratic high of 67.3 points in 2016. Between 2020 and 2024 the district moved 9.0 points toward the Republican candidate; the 2024 margin was 54.9 points.
A population of 766,969, a 19% non-Hispanic-white share, and a median household income of $64,487 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 30 and Congressional District 4.
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 18th Congressional District. Akashic. https://akashic.app/cd/4818/. Accessed May 20, 2026. License: CC BY 4.0.