ZIP 62921 (Colp, IL) truck route planning & crash data
Plan safer truck routes around ZIP 62921: 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
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 sits below Illinois on 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 deaths for every 100 truck crashes, against 2.6 across Illinois.
Overview
Since 2015, 611 crashes involving commercial trucks have been reported in Williamson County. They injured 314 people and killed 37.
That averages about one truck crash every 7 days in fully reported years.
When crashes happen
July has the most truck crashes, 11.8% of the yearly total, while May has the fewest (4.6%).
Winter months (Nov–Mar) carry 40.8% of truck crashes, vs 42.0% for Illinois.
More truck crashes happen at 2–3 pm than at any other hour (7.2%).
Snow, slush or ice was on the road in 4.6% of truck crashes, compared with 9.0% in Illinois.
Where crashes happen
Within this area, I-57 had the most fatal crashes involving a large truck since 2015 (7). After it: SR-148 (5), SR-37 (2) and E Clark Trail (1).
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 ZIP 62921 fleets
- Plan July schedules with more margin; it is the worst month for truck crashes in Williamson County.
- Check whether your routes use I-57, the road with the most fatal truck crashes in this area.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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-57 | 7 |
| SR-148 | 5 |
| SR-37 | 2 |
| E Clark Trail | 1 |
| Main St | 1 |
| SR-149 | 1 |
| US-51 | 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 |
ZIP 62921 at a glance
| Population | 233 |
| Density | 168 per sq mi |
| Home ownership | 77% |
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 |
From the 1990s to the 2020s, yearly reported truck crashes went from 16 to 51. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 3.0 a year in 2016–19 and 2.6 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 62921
How many truck crashes happen in ZIP 62921?
611 truck crashes have been reported in Williamson County since 2015, with 37 deaths and 314 injuries.
Which road has the most fatal truck crashes in ZIP 62921?
NHTSA data shows I-57 with 7 fatal large-truck crashes within 10 miles of ZIP 62921 since 2015, the highest of any road.
What is the worst month for truck crashes in ZIP 62921?
Truck crashes in Williamson County peak in July, with 11.8% of the year's crashes.
How many garbage truck crashes are there in ZIP 62921?
Garbage trucks were involved in 4 reported crashes in Williamson County since 2015 (0.7% of truck crashes).
What is the truck crash rate in ZIP 62921 compared with Illinois?
Per 100,000 residents, Williamson County has 77.1 truck crashes a year; Illinois has 56.0.
What is the best way to plan truck routes in ZIP 62921?
The free Route Planner takes your stops and returns a route risk score, safer alternatives and low-bridge warnings.
2026 is a partial year. Updated October 2026.