ZIP 37921 (Knoxville, TN) truck route planning & crash data
Plan safer truck routes around ZIP 37921: commercial truck and garbage truck crashes here and in Knox 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
3.3 deaths per 100 garbage-truck crashes vs 2.8 for all trucks.
Deadliest roads
How Knox County compares with Tennessee
Knox County against Tennessee and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Knox County stands out
Full comparison
| Measure (2015–2025) | Knox County | Tennessee | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 56.6 | 60.1 | 49.7 | same |
| Deaths per 100 crashes | 2.8 | 3.9 | 3.4 | 28% below the state |
| Injuries per crash | 0.43 | 0.48 | 0.49 | 10% below the state |
| Garbage-truck share | 1.9% | 1.9% | 2.3% | same |
| On snow, slush or ice | 1.3% | 2.3% | 6.2% | 43% below the state |
| Morning rush (6–10 am) | 21.7% | 21.8% | 23.7% | same |
| In rain, sleet or snow | 17.9% | 14.9% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 38.7% | 40.5% | 41.9% | same |
| After dark | 25.9% | 25.9% | 24.8% | same |
Knox County has lower values than Tennessee for deaths per 100 crashes, injuries per crash and on snow, slush or ice. Where it is higher: in rain, sleet or snow.
What stands out in ZIP 37921: I-40 18 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 37921.
Overview
Police reported 3,331 crashes involving commercial trucks in Knox County since 2015: 1,450 people were injured and 87 were killed.
That averages about 1 truck crash a day in fully reported years.
When crashes happen
The worst month is October with 9.9% of truck crashes; the quietest is February at 6.9%.
Winter months (Nov–Mar) carry 38.7% of truck crashes, vs 40.5% for Tennessee.
By time of day, 3–4 pm stands out with 6.9% of truck crashes.
Snow, slush or ice was on the road in 1.3% of truck crashes, compared with 2.3% in Tennessee.
Where crashes happen
I-40 leads within 10 miles of ZIP 37921 with 18 fatal crashes involving a large truck since 2015. It is followed by I-75 (5), US-129 (5) and SR-169 (4).
Garbage & waste trucks
Garbage and refuse trucks were involved in 62 crashes, 1.9% of the total, against 1.9% across Tennessee.
The most garbage-truck crashes happen in December (15%).
They recorded 3.3 deaths per 100 crashes, against 2.8 for all trucks.
Route planning tips for ZIP 37921 fleets
- Review driver schedules for October, the month with the most truck crashes.
- Where you can, review stops along I-40; it has the most fatal large-truck crashes nearby.
- Waste haulers: December is the peak month for garbage-truck crashes in Knox County.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
About the data
Crash counts come from the FMCSA crash file (police-reported crashes involving trucks over 10,000 lb); fatal-crash locations come from NHTSA FARS. Text on this page states only what these numbers show.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Knox County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-40 | 18 |
| I-75 | 5 |
| US-129 | 5 |
| SR-169 | 4 |
| SR-131 | 3 |
| I-275 | 2 |
| SR-168 | 2 |
| US-11 | 2 |
| US-25W | 2 |
| CR-ASBURY Rd | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Knox County) |
|---|---|
| I-40 | 1,136 |
| I-75 | 183 |
| I-640 | 114 |
| I-40 West | 94 |
| I-40 East | 73 |
| Lovell Rd | 48 |
| Asheville Hwy | 46 |
| Interstate 40 East | 40 |
ZIP 37921 at a glance
| Population | 28,717 |
| Density | 697 per sq mi |
| Median household income | $60,013 |
| Median home value | $224,266 |
| Home ownership | 60% |
Waste facilities and haulers nearby
Historical data: truck crashes in Knox 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 | 34 | — | 6.5 |
| 2000s | 162 | +381% | 5.6 |
| 2010s | 220 | +36% | 4.9 |
| 2020s | 311 | +42% | 8.0 |
In the 1990s about 34 truck crashes a year were reported; in the 2020s, about 311. Reporting coverage also changed between these periods. Fatal large-truck crashes: 6.0 a year in 2016–19, 8.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 37921
How many truck accidents are there in ZIP 37921?
Knox County has had 3,331 reported truck crashes since 2015, injuring 1,450 people and killing 87.
Where do fatal truck crashes happen most in ZIP 37921?
NHTSA data shows I-40 with 18 fatal large-truck crashes within 10 miles of ZIP 37921 since 2015, the highest of any road.
Which month has the most truck crashes in ZIP 37921?
October has the most truck crashes in Knox County, 9.9% of the yearly total.
Are garbage truck crashes common in ZIP 37921?
62 crashes involving garbage or refuse trucks have been reported in Knox County since 2015, 1.9% of all truck crashes.
How do truck crashes in ZIP 37921 compare with Tennessee?
Per 100,000 residents, Knox County has 56.6 truck crashes a year; Tennessee has 60.1.
How do I plan a garbage truck route in ZIP 37921?
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.