ZIP 37721 (Corryton, TN) truck route planning & crash data
Plan safer truck routes around ZIP 37721: 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. It stands out for higher in rain, sleet or snow.
ZIP 37721 at a glance: 1.9× change in fatal truck crashes a year within 10 miles of ZIP 37721 (1.5 → 2.8).
Overview
Police reported 3,331 crashes involving commercial trucks in Knox County since 2015: 1,450 people were injured and 87 were killed.
In complete reporting years that works out to about 1 truck crash a day.
When crashes happen
October has the most truck crashes, 9.9% of the yearly total, while February has the fewest (6.9%).
November through March accounts for 38.7% of truck crashes here, compared with 40.5% in Tennessee.
More truck crashes happen at 3–4 pm than at any other hour (6.9%).
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 37721 with 7 fatal crashes involving a large truck since 2015. After it: SR-33 (4), US-11W (2) and CR-MILLERTOWN Pk (1).
Garbage & waste trucks
62 crashes involved a garbage or refuse truck, a 1.9% share (Tennessee: 1.9%).
The most garbage-truck crashes happen in December (15%).
Deaths per 100 garbage-truck crashes: 3.3, vs 2.8 for all truck crashes.
Route planning tips for ZIP 37721 fleets
- Build extra time into October routes: it has the most truck crashes here.
- Look at alternatives to I-40 at busy times: it leads this area in fatal truck crashes.
- For residential and commercial waste routes, look again at December schedules: garbage-truck crashes peak then.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Knox County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-40 | 7 |
| SR-33 | 4 |
| US-11W | 2 |
| CR-MILLERTOWN Pk | 1 |
| CR-MILLERTOWN Pkwy | 1 |
| I-640 | 1 |
| SR-144 | 1 |
| SR-168 | 1 |
| SR-170 | 1 |
| US-11E | 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 37721 at a glance
| Population | 14,306 |
| Density | 112 per sq mi |
| Median household income | $64,892 |
| Median home value | $232,117 |
| Home ownership | 82% |
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. NHTSA counts 6.0 fatal large-truck crashes a year in 2016–19 and 8.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 37721
How common are truck crashes in ZIP 37721?
Knox County has had 3,331 reported truck crashes since 2015, injuring 1,450 people and killing 87.
Which road has the most fatal truck crashes in ZIP 37721?
NHTSA data shows I-40 with 7 fatal large-truck crashes within 10 miles of ZIP 37721 since 2015, the highest of any road.
What is the worst month for truck crashes in ZIP 37721?
October has the most truck crashes in Knox County, 9.9% of the yearly total.
How many garbage truck accidents happen in ZIP 37721?
Since 2015, Knox County has reported 62 garbage-truck crashes, or 1.9% of its truck crashes.
How does ZIP 37721 compare with Tennessee for truck crashes?
Knox County records 56.6 truck crashes per 100,000 residents a year, against 60.1 across Tennessee.
How can I plan a safer truck route in ZIP 37721?
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.