Official TLC population estimate
1,018,4582020–2024 ACS 5-year estimates - report dated June 3, 2026Verified official profile - 2026-08-14
District operating context
One district. Eighteen county jurisdictions. A defensible starting point.
Official boundary and officeholder facts are separated from survey estimates so staff can see what is current and what is dated.
Official TLC household estimate
355,1222020–2024 ACS 5-year estimates - report dated June 3, 2026County footprint
1814 whole - 4 partialOn-demand source status
Official public connections
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NWS coverage note. Zero means no alert matched the pinned District 18 county SAME/TXC codes or an exact Texas-county fallback. Zone-only alerts without exact county evidence are excluded; check the canonical NWS alert feed for the complete alert set.
Nonpartisan office responsibility lens
Organize monitoring around current public duties.
These official memberships are an indexing lens, not a statement of policy position or priority.
- Health and Human Services — Chair
- Administration
- Business and Commerce
- Finance
- Water, Agriculture, and Rural Affairs
- Civil Discourse and Freedom of Speech in Higher Education, Select
- Committee on the July 2025 Flooding Events, General Investigating
- Disaster Preparedness and Flooding, Select
- Sunset Advisory Commission — Chair
- Joint Interim Committee to Study Abandoned Oil and Gas Wells
- Windstorm Insurance Legislative Oversight Board
Decision context
Four facts worth carrying into the briefing
Residents age 65+
15.1%Texas: 13.4%Share of the estimated district population age 65 and over.Bachelor's degree or higher
35.0%Texas: 33.8%Share of the population age 25 and over.Commute of 60+ minutes
9.6%Texas: 7.0%Share of workers; people who worked at home are excluded from travel-time categories.People below poverty level
10.6%Texas: 13.8%Share of people for whom poverty status was determined.Estimate boundary. ACS figures are 2020–2024 five-year sample estimates, not a live count. The Texas Legislative Council notes that margins of error accompany the estimates and comparisons across overlapping five-year periods require caution.
Geospatial review required
Four partial counties need record-level boundary confirmation.
Fort Bend, Harris, Montgomery, and Waller are partial counties. Countywide records are context only until a record location is intersected with the official PLANS2168 geometry.
Do not treat countywide as in-district. Partial-county percentages are the share of each county’s 2020 Census population placed in District 18 by PLANS2168. They are not land-area shares or current population estimates.
Official District Analysis library
Use every current resource linked from the Senator's official page.
Texas Senate
Senator Lois W. Kolkhorst — District 18
Current officeholder, district number, official office information, and district analysis linksLive official member page; checked 2026-08-14Open canonical sourceTexas Legislative Council
PLANS2168 — current Texas Senate district plan
Authoritative district geometry and plan resourcesPLANS2168; current 2023–2026 Texas Senate districtsOpen canonical sourceTexas Legislative Council
Texas Senate District 18 profile
Population, households, age, education, commuting, income, and housing estimates2020–2024 ACS 5-year estimates; report dated 2026-06-03Open canonical sourceTexas Legislative Council
District 18 population analysis with county subtotals
Whole- and partial-county composition and plan population shares2020 Census; PLANS2168 report dated 2023-01-10Open canonical sourceTexas Legislative Council
District 18 precincts by district
2024 General Election precincts assigned wholly or partly to District 182024 General Election precincts; report dated 2025-02-25Open canonical sourceTexas Legislative Council
District 18 cities and census-designated places
City and census-designated-place population within PLANS21682020 Census; report dated 2023-01-10Open canonical sourceTexas Legislative Council
District 18 school-district population analysis
School-district coverage and 2020 Census population subtotals2020 Census and school year 2025-2026; report dated 2026-03-25Open canonical sourceTexas Legislative Council
District 18 general-election analysis
2024 general-election district analysis; official statewide results remain with the Texas Secretary of State2024 General Election; report dated 2025-02-25Open canonical sourceTexas Legislative Council
Detailed District 18 map
Printable official PLANS2168 district map and boundary contextPLANS2168 current 2023-2026 Texas Senate districtsOpen canonical sourceIt does not infer constituent positions, forecast election outcomes, or present survey estimates as live counts. Any live official index metadata is labeled and displayed separately from this district profile.