ZIP 78681 (Round Rock, TX) truck route planning & crash data
Plan safer truck routes around ZIP 78681: commercial truck and garbage truck crashes here and in Williamson County, dangerous roads, seasonality and route safety data for fleets.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
2.0 deaths per 100 garbage-truck crashes vs 2.7 for all trucks.
Deadliest roads
How Williamson County compares with Texas
Williamson County against Texas and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Williamson County stands out
Full comparison
| Measure (2015–2025) | Williamson County | Texas | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 39.0 | 62.9 | 49.7 | 38% below the state |
| Deaths per 100 crashes | 2.7 | 4.1 | 3.4 | 34% below the state |
| Injuries per crash | 0.48 | 0.58 | 0.49 | 17% below the state |
| Garbage-truck share | 1.6% | 1.1% | 2.3% | 1.4× the state |
| On snow, slush or ice | 1.8% | 1.7% | 6.2% | 1.1× the state |
| Morning rush (6–10 am) | 27.4% | 22.6% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 7.6% | 11.3% | 13.8% | 32% below the state |
| Winter months (Nov–Mar) | 39.5% | 40.8% | 41.9% | same |
| After dark | 23.3% | 27.0% | 24.8% | 14% below the state |
Compared with Texas, Williamson County is lower on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash. It stands out for higher garbage-truck share, on snow, slush or ice and morning rush (6–10 am).
ZIP 78681 at a glance: 1.9× fatal truck crashes within 10 miles of ZIP 78681 per year, 2020–24 vs 2016–19 (5.2 vs 2.8).
Overview
Police reported 3,299 crashes involving commercial trucks in Williamson County since 2015: 1,603 people were injured and 90 were killed.
In complete reporting years that works out to about 1 truck crash a day.
When crashes happen
August has the most truck crashes, 9.3% of the yearly total, while December has the fewest (7.2%).
Winter months (Nov–Mar) carry 39.5% of truck crashes, vs 40.8% for Texas.
The busiest hour is 7–8 am, with 8.0% of truck crashes.
Road surface: 1.8% of truck crashes were on snow, slush or ice (Texas: 1.7%).
Where crashes happen
The deadliest road for trucks within 10 miles of ZIP 78681 is I-35, with 10 fatal large-truck crashes since 2015. It is followed by SR-130 (5), SR-45 (3) and Mu-Pflugerville Pkwy (2).
Garbage & waste trucks
50 crashes involved a garbage or refuse truck, a 1.5% share (Texas: 1.1%).
The most garbage-truck crashes happen in March (12%).
Per 100 crashes, garbage trucks recorded 2.0 deaths compared with 2.7 for all trucks.
Route planning tips for ZIP 78681 fleets
- Review driver schedules for August, the month with the most truck crashes.
- Look at alternatives to I-35 at busy times: it leads this area in fatal truck crashes.
- Waste haulers: March is the peak month for garbage-truck crashes in Williamson County.
- Morning starts matter: 27.4% of truck crashes fall between 6 and 10 am, higher than Texas.
- Icy and snowy roads show up in 1.8% of truck crashes here, more than Texas; schedule winter checks early.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Williamson County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-35 | 10 |
| SR-130 | 5 |
| SR-45 | 3 |
| Mu-Pflugerville Pkwy | 2 |
| SR-29 | 2 |
| US-79 | 2 |
| 183A Toll/Tx Hill Country Trl | 1 |
| CR-CHANDLER Rd | 1 |
| Fm 734 | 1 |
| Gattis School Rd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Williamson County) |
|---|---|
| Chandler Rd | 62 |
| University Blvd | 42 |
| Sh 195 | 41 |
| Sh 130 | 31 |
| Williams Dr | 30 |
| I-35 | 28 |
| Limmer Loop | 27 |
| Louis Henna Blvd | 23 |
ZIP 78681 at a glance
| Population | 56,691 |
| Density | 944 per sq mi |
| Median household income | $137,819 |
| Median home value | $505,140 |
| Home ownership | 74% |
Waste facilities and haulers nearby
Historical data: truck crashes in Williamson County since the 1990s
Combines the FMCSA crash file (all reported truck crashes, real coverage from about 1990) with NHTSA FARS (fatal crashes involving a large truck, 1982–2024).
| Decade | Truck crashes / yr | Change | Fatal crashes / yr (FARS) |
|---|---|---|---|
| 1990s | 112 | — | 4.4 |
| 2000s | 169 | +50% | 4.9 |
| 2010s | 175 | +4% | 3.5 |
| 2020s | 328 | +87% | 10.0 |
From the 1990s to the 2020s, yearly reported truck crashes went from 112 to 328. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 4.0 a year in 2016–19 and 10.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 78681
How common are truck crashes in ZIP 78681?
3,299 truck crashes have been reported in Williamson County since 2015, with 90 deaths and 1,603 injuries.
Which road has the most fatal truck crashes in ZIP 78681?
I-35 had 10 fatal crashes involving a large truck within 10 miles of ZIP 78681 since 2015, more than any other road.
Which month has the most truck crashes in ZIP 78681?
August has the most truck crashes in Williamson County, 9.3% of the yearly total.
Are garbage truck crashes common in ZIP 78681?
50 crashes involving garbage or refuse trucks have been reported in Williamson County since 2015, 1.5% of all truck crashes.
How does ZIP 78681 compare with Texas for truck crashes?
The yearly rate is 39.0 truck crashes per 100,000 residents in Williamson County, vs 62.9 for Texas.
What is the best way to plan truck routes in ZIP 78681?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.