Local research brief · September 7, 2026
2026 Houston-Area Commercial-Vehicle and DWI Crash Data Brief
A focused comparison of the latest available 2024 and 2025 TxDOT crash tables for Harris and Montgomery counties—the Houston-area counties appearing among Texas’s ten highest raw county totals in both datasets.
Research status
Source tables rechecked October 1, 2026
This regional brief is calculated from the same TxDOT source tables used in TSC's statewide research. Regional groupings are editorial study areas unless expressly identified otherwise; raw crash counts are not population-, traffic-, or vehicle-miles-traveled-adjusted risk rates.
Citable regional findings
Suggested citation
Texas Settlement Calculator, “2026 Houston-Area Commercial-Vehicle and DWI Crash Data Brief,” analysis of TxDOT 2024 and 2025 county crash tables.
Two-county CMV-involved crashes
6,984 → 6,587
−397 crashes · −5.7%
Two-county DUI (Alcohol) crashes
3,842 → 3,516
−326 crashes · −8.5%
What changed in the two-county comparison
Harris remained Texas’s highest-count CMV county
Harris County recorded 5,913 CMV-involved crashes in 2025, down 400 or 6.3% from 2024, while remaining the county with the highest raw total in Texas.
Harris alcohol-involved crashes also declined
Harris County DUI (Alcohol) crashes fell from 3,357 in 2024 to 3,090 in 2025, a decline of 267 or 8.0%.
Montgomery’s two trends diverged
Montgomery County CMV-involved crashes were essentially flat, increasing from 671 to 674, while DUI (Alcohol) crashes declined from 485 to 426.
The datasets describe events, not risk
The figures are raw reported crash counts. They do not account for population, vehicle miles traveled, freight exposure or differences in enforcement and reporting.
County comparison
Counts are shown separately because a crash may appear in both datasets.
| County | CMV 2024 | CMV 2025 | CMV change | DUI 2024 | DUI 2025 | DUI change |
|---|---|---|---|---|---|---|
| Harris | 6,313 | 5,913 | -400 (-6.3%) | 3,357 | 3,090 | -267 (-8.0%) |
| Montgomery | 671 | 674 | +3 (+0.4%) | 485 | 426 | -59 (-12.2%) |
Quotable findings
For reporters and researchers
“Harris County remained Texas’s highest-count county for both CMV-involved and DUI (Alcohol) crashes in 2025, even as its reported totals declined 6.3% and 8.0%, respectively.”
“Across Harris and Montgomery counties, CMV-involved crashes declined 5.7% and DUI (Alcohol) crashes declined 8.5% from 2024 to 2025; those raw-count changes do not by themselves establish a change in individual crash risk.”
Attribution: Texas Settlement Calculator analysis of TxDOT 2024 and 2025 county crash tables. Quotations may be reproduced with attribution and a link to this brief.
Methodology and limitations
Texas Settlement Calculator transcribed the Harris and Montgomery county values from TxDOT’s 2024 and 2025 CMV-involved and DUI (Alcohol) county tables. Absolute change equals the 2025 count minus the 2024 count. Percentage change equals that difference divided by the 2024 count, multiplied by 100 and rounded to one decimal place.
This two-county grouping is an editorial comparison of Houston-area counties appearing in the statewide top-ten tables; it is not an official TxDOT region and does not represent the complete Houston–The Woodlands–Sugar Land metropolitan statistical area. Fort Bend and other area counties are therefore not included in the combined change figures. The two crash datasets can overlap and must not be added together.
These are raw reported crash counts, not population- or exposure-adjusted rates. The figures do not measure individual risk, establish causation, assign fault, determine insurance coverage or predict a legal result. TxDOT administrative data may be revised.
Independent-publication disclosure: This report is not affiliated with, sponsored by, approved by or endorsed by TxDOT or any other governmental agency. TxDOT is identified solely as the source of the underlying public data.
Houston-area resources
Press and corrections
Reporters may request source-table details or comment at contact@texassettlementcalculator.com. Submit corrections with the affected URL and supporting source to privacy@texassettlementcalculator.com.
Published September 7, 2026 · Data reviewed September 7, 2026
Sources
- TxDOT crash data and crash records (CRIS)
State crash data and the crash-report / records request process relied on by these pages.
- FMCSA minimum insurance requirements — 49 CFR Part 387
Federal minimum financial-responsibility rules for commercial motor carriers.
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