Key Takeaways
- Texas DWI arrests have declined over the past decade, while alcohol-related traffic fatalities increased after 2020.
- Harris County records the highest number of DWI arrests year over year.
- Montgomery County recorded the highest rate of incarceration-related outcomes among Michael & Associates' 2025 DWI clients.
DWI Demographics: Who is Arrested for DWI in Texas?
While arrests have dropped by nearly 33% over the last decade, they remain high, with over 50% of offenders aged 21–39. Here's a look at some of the key statistics compiled through publicly available data:
- Texas also records thousands of under-21 DUI cases annually; approximately 4,000 were reported in 2025.
- Between 75% and 79% of DWI suspects are male
- Texans between the ages of 20 and 24 are the most common DWI offenders
- Harris County had the most arrests in 2024, with 12,000 charges
- A report from the Texas Department of Public Safety shows that about 74.1% of DWI defendants are white, 25% are Black, and the remainder are categorized as "other races."
- That same report said that 42% of DWI defendants are Hispanic, while 58% are other ethnicities.
Source: Texas Department of Public Safety annual DWI reports and Texas Crime Reports.
DWI-Related Crash Statistics
- Impaired driving was identified as a factor in 14,389 Texas traffic fatalities between 2014 and 2023. That's an average of more than 1,000 deaths per year.
- More than 37% of traffic fatalities in Texas involved drivers who were impaired by drugs and/or alcohol
- The largest share of impaired-driving fatalities occurred between 2 and 3 a.m. on Saturdays and Sundays.
- Fatalities involving an impaired driver were highest among males ages 19–35.
Source: Texas Department of Transportation (TxDOT): Alcohol-related crash and fatality data
Texas DWI Arrest Trends by County
Typical Annual DWI Arrest Volume in Texas's Five Largest Counties
|
County
|
Estimated Annual Arrests
|
| Harris County | ~10,000 to 12,000 |
| Dallas County | ~6,000 to 7,000 |
| Bexar County | ~5,000 to 6,000 |
| Tarrant County | ~5,000 to 5,500 |
| Travis County | ~2,500 to 3,000 |
Where Were First-DWI Incarceration Outcomes Most Common?
About 49.5% of Michael & Associates' jail-related DWI dispositions in 2025 involved a first DWI. More than 8 out of 10 of those involved only time served rather than an additional jail sentence.
- 70.8% were resolved with time served
- 16.7% involved a jail sentence on the DWI charge
- 10.4% were reduced charges with time served
- 2.1% were a reduced charge with a jail sentence
Among first-offense DWI matters resolved by Michael & Associates in 2025, incarceration-related outcomes varied substantially by county. Montgomery County had the highest rate in the firm's dataset at 34.2%, followed by Galveston at 23.1%, Brazoria at 16.0%, and Harris at 14.6%.
Highest:
- Montgomery: 34.2%
- Galveston: 23.1%
- Brazoria: 16.0%
- Harris: 14.6%
Moderate:
- Collin: 6.9%
Lowest:
- Travis: 4.0%
- Tarrant: 3.6%
- Williamson: 3.0%
- Denton: 1.4%
- Dallas: Less than 1%
- Bexar: Less than 1%
These figures describe Michael & Associates' resolved cases, not all DWI cases filed in those counties, and should not be interpreted as countywide conviction or sentencing rates.
DWI Outcomes in Texas's Five Largest Counties
Publicly available 2024 case-disposition data shows substantial differences in DWI outcomes among Texas's five largest counties.
|
County
|
Dismissal rate
|
Reduction rate
|
Resolved without a conviction
|
| Dallas County | 18 to 25% | 25 to 35% | 45 to 55% |
| Harris County | 10 to 15% | 30 to 40% | 40 to 50% |
| Travis County | 15 to 22% | 28 to 38% | 45 to 55% |
| Bexar County | 8 to 12% | 20 to 30% | 30 to 40% |
| Tarrant County | 10 to 14% | 22 to 32% | 35 to 45% |
- Dismissal: Case terminated without conviction
- Reduction: DWI reduced to a non-DWI offense
- Non-Conviction Resolution: Any outcome other than a final DWI conviction
Why Outcomes Differ by County
Texas DWI statutes apply statewide, but local practices can affect how cases move through the criminal justice system. Counties may differ in prosecutor policies, diversion programs, plea practices, court scheduling, laboratory procedures, and how particular types of DWI cases are evaluated.
The outcome of an individual case still depends on the specific evidence, including the legality of the traffic stop, field sobriety testing, breath or blood test results, prior DWI history, aggravating circumstances, and available defenses.
Typical Outcomes by BAC Tier
Texas defines intoxication to include an alcohol concentration of 0.08 or higher. An alcohol concentration of 0.15 or higher can elevate a standard DWI to a Class A misdemeanor. But while BAC is evidence, it is not definitive. It can be challenged, and it won't always affect the outcome of a DWI case.
|
BAC Level
|
Conviction Rate
|
Reduction Rate
|
Dismissal Rate
|
| Below 0.08 | 40 to 55% | 25 to 35% | 15 to 30% |
| 0.08–0.149 | 55 to 65% | 20 to 30% | 10 to 20% |
| ≥ 0.15 | 70 to 85% | 10 to 20% | 5 to 15% |
- Below 0.08: Outcomes depend on police officer observations rather than chemical evidence, increasing dismissal rates and the likelihood of charge reductions.
- 0.08–0.149: Outcomes will depend heavily on testing reliability and whether police officers followed proper procedures.
- ≥ 0.15: Enhanced penalties increase the risk of a conviction, but scientific and constitutional challenges are a defense option.
Arrest Statistics vs. Case Outcomes
- Is not proof of intoxication
- Does not guarantee a conviction
- Does not account for suppressed evidence or whether someone's constitutional rights were violated
Frequently Asked Questions
Does a higher BAC always mean a DWI conviction in Texas?
Which Texas counties dismiss DWI cases most often?
Does a BAC of 0.15 Increase a Texas DWI to a Class A Misdemeanor?
Do blood tests make DWI cases harder or easier to dismiss?
Methodology and Sources
This analysis combines several types of data that measure different aspects of DWI in Texas:
- DWI arrests and dispositions: Texas Department of Public Safety annual DWI reports.
- Crashes and fatalities: Texas Department of Transportation traffic-safety data.
- Five-county case outcomes: Travis County's 2024 analysis of DWI dispositions in Bexar, Dallas, Harris, Tarrant, and Travis counties.
- BAC research: National Highway Traffic Safety Administration research and applicable Texas law.
- Michael & Associates case outcomes: Firm case-management data for matters handled by Michael & Associates, identified separately from statewide or countywide government statistics.
Arrests, crashes, court dispositions, and Michael & Associates case results measure different populations and should not be interpreted as interchangeable. Firm outcome data describes Michael & Associates cases only and does not represent all DWI cases filed in a county or statewide.
