Fatal crashes in Williamson County, Texas
In 2024, 51 people died in 50 fatal crashes in Williamson County, 18.6% more than in 2023. From 2015 to 2024 the county recorded 426 fatal crashes and 465 deaths, the 14th most of any county in Texas.
7 deaths per 100,000 residents, against 13.3 across Texas in 2024; 7.6 against 13.6 a year over 2015 to 2024. Population 727,480, Census Bureau estimate. All fatal crashes in Texas.
Deaths in Williamson County by year
| Year | Fatal crashes | Deaths |
|---|---|---|
| 2024 | 50 | 51 |
| 2023 | 41 | 43 |
| 2022 | 59 | 66 |
| 2021 | 51 | 54 |
| 2020 | 39 | 43 |
| 2019 | 36 | 39 |
| 2018 | 36 | 42 |
| 2017 | 36 | 38 |
| 2016 | 41 | 45 |
| 2015 | 37 | 44 |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
The deadliest roads in Williamson County
I-35 had the most fatal crashes of any numbered road in Williamson County from 2015 to 2024: 42, with 44 deaths. The 8 roads listed held 43% of all fatal crashes in Williamson County from 2015 to 2024; 1 is an interstate, 2 US routes, 5 state highways. Interstate, US and state routes with 5 or more fatal crashes in the county; county roads and city streets are in the county's total but not listed.
| Road | Fatal crashes | Deaths | 2022 to 2024 | ||
|---|---|---|---|---|---|
| 1 | I-35 | 42 | 44 | 11 | |
| 2 | US 183 | 36 | 42 | 15 | |
| 3 | State Highway 29 | 29 | 33 | 8 | |
| 4 | State Highway 195 | 23 | 27 | 6 | no page |
| 5 | State Highway 95 | 21 | 24 | 11 | |
| 6 | US 79 | 19 | 21 | 4 | |
| 7 | State Highway 45 | 9 | 10 | 6 | no page |
| 8 | State Highway 130 | 6 | 6 | 2 |
Cities NHTSA filed, with their fatal crashes from 2015 to 2024: Round Rock 55, Georgetown 50, Austin 27, Cedar Park 25, Leander 25, Taylor 24, Jarrell 10, Hutto 10. The city is not filed for crashes outside a city.
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
When fatal crashes happen in Williamson County
The heaviest slot is Saturday, midnight to 4 am, with 19 fatal crashes from 2015 to 2024. The worst hour is 6 pm to 7 pm; the worst month is May.
| Midnight to 4 | 4 to 8 am | 8 to noon | Noon to 4 | 4 to 8 pm | 8 to midnight | |
|---|---|---|---|---|---|---|
| Sun | 2.6 percent, 11 fatal crashes | 2.6 percent, 11 fatal crashes | 1.2 percent, 5 fatal crashes | 2.6 percent, 11 fatal crashes | 2.8 percent, 12 fatal crashes | 2.6 percent, 11 fatal crashes |
| Mon | 0.9 percent, 4 fatal crashes | 1.9 percent, 8 fatal crashes | 2.6 percent, 11 fatal crashes | 1.4 percent, 6 fatal crashes | 3.8 percent, 16 fatal crashes | 3.1 percent, 13 fatal crashes |
| Tue | 1.6 percent, 7 fatal crashes | 2.4 percent, 10 fatal crashes | 2.1 percent, 9 fatal crashes | 0.9 percent, 4 fatal crashes | 2.6 percent, 11 fatal crashes | 1.9 percent, 8 fatal crashes |
| Wed | 1.6 percent, 7 fatal crashes | 2.6 percent, 11 fatal crashes | 2.6 percent, 11 fatal crashes | 2.4 percent, 10 fatal crashes | 1.6 percent, 7 fatal crashes | 3.3 percent, 14 fatal crashes |
| Thu | 1.6 percent, 7 fatal crashes | 1.2 percent, 5 fatal crashes | 2.1 percent, 9 fatal crashes | 3.1 percent, 13 fatal crashes | 3.1 percent, 13 fatal crashes | 2.1 percent, 9 fatal crashes |
| Fri | 1.4 percent, 6 fatal crashes | 2.4 percent, 10 fatal crashes | 2.1 percent, 9 fatal crashes | 1.2 percent, 5 fatal crashes | 3.8 percent, 16 fatal crashes | 3.5 percent, 15 fatal crashes |
| Sat | 4.5 percent, 19 fatal crashes | 1.9 percent, 8 fatal crashes | 2.6 percent, 11 fatal crashes | 3.3 percent, 14 fatal crashes | 2.8 percent, 12 fatal crashes | 3.8 percent, 16 fatal crashes |
By hour
By month
- Jan7.3%
- Feb7.0%
- Mar4.9%
- Apr8.5%
- May10.3%
- Jun8.0%
- Jul8.0%
- Aug7.7%
- Sep9.9%
- Oct8.2%
- Nov10.1%
- Dec10.1%
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
What fatal crashes in Williamson County first hit
The first harmful event was a collision with another vehicle in most fatal crashes, 51%; a fixed object such as a tree, pole or barrier in 24%, a pedestrian in 12%, a rollover in 5.4%.
| First harmful event | Fatal crashes | Share |
|---|---|---|
| Collision with another vehicle | 215 | 51% |
| Fixed object (tree, pole, barrier, ditch) | 101 | 24% |
| Pedestrian | 51 | 12% |
| Rollover | 23 | 5.4% |
| Other | 17 | 4.0% |
| Cyclist | 13 | 3.1% |
| Parked vehicle | 6 | 1.4% |
| Not reported | 0 | 0.0% |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
How fatal crashes in Williamson County compare with Texas
A drinking driver was recorded in 23% of fatal crashes in Williamson County from 2015 to 2024, below the Texas share of 26%; speeding in 32%, about the Texas share; a hit-and-run in 5.9%, below the Texas share of 7.6%; a driver recorded as distracted in 8.5%, below the Texas share of 10%; 33% of passenger-vehicle occupants killed with belt use known were unbelted, below the Texas share of 45%. Shares of fatal crashes from 2015 to 2024, against the share across all of Texas. A share is only given over 20 crashes.
| Williamson | Texas | ||
|---|---|---|---|
| On rural roads | 39% | 38% | about the same as the Texas share |
| At or near an intersection | 31% | 22% | above the Texas share |
| In the dark, road unlit | 32% | 31% | about the same as the Texas share |
| A drinking driver | 23% | 26% | below the Texas share |
| Speeding | 32% | 32% | about the same as the Texas share |
| A distracted driver (as recorded) | 8.5% | 10% | below the Texas share |
| Occupants killed unbelted | 33% | 45% | below the Texas share |
| Hit-and-run | 5.9% | 7.6% | below the Texas share |
| A motorcycle involved | 16% | 14% | above the Texas share |
| Pedestrians among the dead | 13% | 18% | below the Texas share |
Source: NHTSA Fatality Analysis Reporting System (FARS), 2024 Annual Report File (released April 2026, subject to revision). How we count
Questions about fatal crashes in Williamson County
- How many people died in car accidents in Williamson County in 2024?
- 51 people died in 50 fatal crashes in Williamson County, Texas, in 2024, 18.6% more than in 2023. That is 7 deaths per 100,000 residents, against 13.3 across Texas.
- What is the deadliest road in Williamson County?
- I-35 had the most fatal crashes of any numbered road in Williamson County from 2015 to 2024: 42, with 44 deaths.
- When do fatal crashes in Williamson County happen most often?
- The heaviest slot from 2015 to 2024 was Saturday, midnight to 4 am, with 19 fatal crashes.
- How many fatal crashes in Williamson County involved a drinking driver?
- 99 of 426 fatal crashes in Williamson County from 2015 to 2024 involved a driver NHTSA recorded as drinking, 23%, against 26% across Texas.
Other counties in Texas with a page
- Harris County
- Dallas County
- Bexar County
- Tarrant County
- Travis County
- El Paso County
- Hidalgo County
- Montgomery County
- Collin County
- Smith County
- Denton County
- Bell County
All fatal crashes in Texas, with every county ranked.
Where the Williamson County numbers come from
Counted from NHTSA's Fatality Analysis Reporting System, 2024 Annual Report File: every fatal crash NHTSA filed in Williamson County (county code 491). A fatal crash is one in which someone died within 30 days. The rate per 100,000 uses the Census Bureau's population estimate for the county; it is the only figure here not counted from FARS. The full method.