Williamson County, IL truck route planning & crash data
Plan safer truck routes in Williamson County: commercial truck and garbage truck crashes, 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
4 of 611 truck crashes since 2015.
Deadliest roads
How Williamson County compares with Illinois
Williamson County against Illinois 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 | Illinois | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 77.1 | 56.0 | 49.7 | 1.4× the state |
| Deaths per 100 crashes | 6.5 | 2.6 | 3.4 | 2.5× the state |
| Injuries per crash | 0.51 | 0.50 | 0.49 | same |
| Garbage-truck share | 0.7% | 1.4% | 2.3% | 49% below the state |
| On snow, slush or ice | 4.6% | 9.0% | 6.2% | 49% below the state |
| Morning rush (6–10 am) | 19.2% | 24.3% | 23.7% | 21% below the state |
| In rain, sleet or snow | 16.5% | 17.9% | 13.8% | 8% below the state |
| Winter months (Nov–Mar) | 40.8% | 42.0% | 41.9% | same |
| After dark | 28.8% | 24.1% | 24.8% | 1.2× the state |
Williamson County has lower values than Illinois for garbage-truck share, on snow, slush or ice and morning rush (6–10 am). It stands out for higher crashes per 100k residents / yr, deaths per 100 crashes and after dark.
What stands out in Williamson County: 6.5 people killed per 100 truck crashes (Illinois: 2.6).
Overview
Williamson County has recorded 611 truck crashes since 2015, with 314 people injured and 37 killed.
In complete reporting years that works out to about one truck crash every 7 days.
When crashes happen
July has the most truck crashes, 11.8% of the yearly total, while May has the fewest (4.6%).
The five winter months (November to March) hold 40.8% of truck crashes, against 42.0% across Illinois.
More truck crashes happen at 2–3 pm than at any other hour (7.2%).
Road surface: 4.6% of truck crashes were on snow, slush or ice (Illinois: 9.0%).
Where crashes happen
I-57 leads in Williamson County with 9 fatal crashes involving a large truck since 2015. Next come SR-148 (6), SR-13 (4) and SR-37 (2).
Garbage & waste trucks
Garbage trucks account for 4 of the truck crashes here, or 0.7%, compared with 1.4% in Illinois.
Route planning tips for Williamson County fleets
- Review driver schedules for July, the month with the most truck crashes.
- Where you can, review stops along I-57; it has the most fatal large-truck crashes nearby.
- 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 (in Williamson County) |
|---|---|
| I-57 | 9 |
| SR-148 | 6 |
| SR-13 | 4 |
| SR-37 | 2 |
| E Clark Trail | 1 |
| I-24 | 1 |
| Main St | 1 |
| SR-149 | 1 |
| SR-166 | 1 |
| W Main St | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Williamson County) |
|---|---|
| I-57 | 257 |
| W Deyoung St | 32 |
| Il-37 | 17 |
| I-24 | 15 |
| Il-13 | 13 |
| N Refuge Rd | 12 |
| Halfway Rd | 9 |
| I-057 | 9 |
Williamson County at a glance
| Population | 67,064 |
| Land area | 420.2 sq mi |
| Density | 160 per sq mi |
| Median household income (ZIP average) | $67,575 |
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 | 16 | — | 1.3 |
| 2000s | 29 | +83% | 1.3 |
| 2010s | 46 | +58% | 1.6 |
| 2020s | 51 | +11% | 2.6 |
Reported truck crashes averaged 16 a year in the 1990s and 51 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 3.0 fatal large-truck crashes a year in 2016–19 and 2.6 a year in 2020–24.
Cities, towns & communities in Williamson County
ZIP codes in Williamson County
Nearby counties
Questions fleets ask about Williamson County
How many truck crashes happen in Williamson County?
Williamson County has had 611 reported truck crashes since 2015, injuring 314 people and killing 37.
Where do fatal truck crashes happen most in Williamson County?
Since 2015, I-57 has had the most fatal large-truck crashes in Williamson County: 9.
Which month has the most truck crashes in Williamson County?
The worst month is July: 11.8% of truck crashes in Williamson County happen then.
How many garbage truck accidents happen in Williamson County?
4 crashes involving garbage or refuse trucks have been reported in Williamson County since 2015, 0.7% of all truck crashes.
How does Williamson County compare with Illinois for truck crashes?
Per 100,000 residents, Williamson County has 77.1 truck crashes a year; Illinois has 56.0.
How do I plan a garbage truck route in Williamson County?
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.