Houston truck crash statistics: Harris County commercial vehicle crashes, 2015-2025

Harris County recorded 5,913 crashes involving a commercial motor vehicle in 2025, according to TxDOT’s crash records. Those crashes killed 43 people and seriously injured 125.¹ The crash count was 6.3% lower than in 2024, when the county recorded 6,313, but deaths rose by two (percent changes, ratios, shares and regional totals on this page are Texas Mobility Outlook’s calculations from TxDOT’s county rows).

The county’s numbers are large in absolute terms. Harris County had about 1.6 times as many commercial vehicle crashes as Dallas County (3,778) in 2025, and more than Bexar, Tarrant and Travis counties together. Deaths are a different story, covered below: Harris County produces a much larger share of the state’s truck crashes than of its truck crash deaths.

Harris County commercial vehicle crashes by year

Annual deaths in these crashes ranged from 30 (in 2016 and 2018) to 47 (in 2017 and 2022) over the 11 years. The crash count peaked at 6,417 in 2019, dropped to 4,928 in 2020, when traffic fell during the pandemic, and has stayed between 5,750 and 6,320 since.²

Harris County’s share of Texas truck crashes

Statewide, TxDOT counted 38,533 commercial vehicle crashes and 528 deaths in 2025.¹ Harris County accounted for 15.3% of the crashes but 8.1% of the deaths. The gap was wider in 2024: 16.0% of crashes and 6.7% of deaths.

Those shares are Texas Mobility Outlook’s arithmetic from TxDOT’s county table, which does not explain the gap. One likely factor is speed. Crashes in congested urban traffic tend to happen at lower speeds than crashes on open rural highways, and TxDOT’s statewide figures show how much that setting matters: in 2025, rural roads had about 27% of all reportable crashes in Texas but half of all traffic deaths.³ Texas Mobility Outlook has not tested the speed explanation for commercial vehicle crashes on their own.

How Harris County compares with other counties

Across the eight-county Greater Houston region, Harris County had 5,913 of the 8,134 commercial vehicle crashes recorded in 2025. Montgomery County, along the I-45 and I-69 corridors north of Houston, had the second-highest count in the region at 674.

Truck crashes as a share of all crashes

All crashes in Harris County totaled 107,472 in 2025, with 503 deaths.⁴ Commercial vehicle crashes were 5.5% of that total and 8.5% of the deaths. For the county’s overall crash trend, see Harris County crash statistics.

What these figures count

Three limits matter when citing these numbers:

• They do not assign fault. A crash involving a commercial vehicle is counted whether or not the truck driver contributed to it. For research on causes, see the leading causes of commercial truck crashes.
• They do not break out individual highways. TxDOT’s published county table has no roadway detail. Corridor-level counts require a custom query of TxDOT’s Crash Records Information System. The I-45, I-10 and I-610 guides cover what is published for each corridor.
• Federal counts use other definitions. NHTSA counts “large trucks” over 10,000 pounds, and FMCSA counts large trucks and buses together. Each produces a different Texas total for the same year. Which Texas truck crash number to cite explains the differences.