Texas State Senate seat · lines in effect since 2022
Texas Senate District 18
A district of about 974,000 people, 31% Hispanic, 34% of adults with a bachelor's degree. It votes R+25.7 relative to the nation for president.
Where it sits among all 31 seats
Every Texas State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2022 | 2026 | |
|---|---|---|
| Texas State Senate | R+32.3 | R+8.6 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: Texas Secretary of StateUpdated Nov 7, 2026, 3:01 PM ET
Who lives here, compared
Grey bars show the spread of all 31 seats. Small marks are other seats in Texas. The black marker is District 18.
Higher than 63% of seats.
Higher than 53% of seats.
Higher than 53% of seats.
Higher than 77% of seats.
Higher than 90% of seats.
Less dense than 77% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
District 1729% Hispanic · 47% college gradsR+21.9Not up in 2026District 30
41% college gradsR+26.8Not up in 2026District 2
30% Hispanic · 33% college gradsR+18.9Held RDistrict 24
26% Hispanic · 33% college gradsR+23.5Held R
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Who has held it
These lines took effect in 2022.
- Lois W. Kolkhorst (R)
2023– · Won 2022 by 32.3, 2026 by 8.6
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)