ZIP 37640 (Butler, TN) truck route planning & crash data
Plan safer truck routes around ZIP 37640: commercial truck and garbage truck crashes here and in Johnson 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 of 79 truck crashes since 2015.
Deadliest roads
How Johnson County compares with Tennessee
Johnson County against Tennessee and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Johnson County stands out
Full comparison
| Measure (2015–2025) | Johnson County | Tennessee | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 35.9 | 60.1 | 49.7 | 40% below the state |
| Deaths per 100 crashes | 6.8 | 3.9 | 3.4 | 1.7× the state |
| Injuries per crash | 0.58 | 0.48 | 0.49 | 1.2× the state |
| Garbage-truck share | 2.7% | 1.9% | 2.3% | 1.4× the state |
| On snow, slush or ice | 2.7% | 2.3% | 6.2% | 1.2× the state |
| Morning rush (6–10 am) | 26.0% | 21.8% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 15.1% | 14.9% | 13.8% | same |
| Winter months (Nov–Mar) | 50.7% | 40.5% | 41.9% | 1.3× the state |
| After dark | 17.8% | 25.9% | 24.8% | 31% below the state |
Johnson County sits below Tennessee on crashes per 100k residents / yr and after dark. It stands out for higher deaths per 100 crashes, injuries per crash and garbage-truck share.
Johnson County at a glance: January the month with the most truck crashes: 16.5% of the year's total.
Overview
Police reported 79 crashes involving commercial trucks in Johnson County since 2015: 46 people were injured and 5 were killed.
Across the years with complete reporting, that is roughly one truck crash every 55 days.
When crashes happen
Truck crashes peak in January (16.5% of the year) and are lowest in May (2.5%).
The five winter months (November to March) hold 50.7% of truck crashes, against 40.5% across Tennessee.
The busiest hour is 9–10 am, with 10.1% of truck crashes.
Snow, slush or ice was on the road in 2.7% of truck crashes, compared with 2.3% in Tennessee.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of ZIP 37640 happened on US-321 (2), CR-BUCK Mountain Rd (1) and SR-67 (1); no road leads clearly.
Garbage & waste trucks
Garbage trucks account for 2 of the truck crashes here, or 2.5%, compared with 1.9% in Tennessee.
Route planning tips for ZIP 37640 fleets
- Review driver schedules for January, the month with the most truck crashes.
- Morning starts matter: 26.0% of truck crashes fall between 6 and 10 am, higher than Tennessee.
- Icy and snowy roads show up in 2.7% of truck crashes here, more than Tennessee; schedule winter checks early.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
About the data
Sources: the FMCSA crash file for all reported truck crashes and NHTSA FARS for fatal crashes with a large truck. Every statement here comes straight from those numbers.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Johnson County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-321 | 2 |
| CR-BUCK Mountain Rd | 1 |
| SR-67 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Johnson County) |
|---|---|
| SR-91N | 10 |
| SR-67W | 10 |
| SR-421S | 9 |
| US-421 | 8 |
| Roan Creek Rd | 5 |
| SR-421N | 5 |
| Tn-91 | 5 |
| Tn-67 | 4 |
ZIP 37640 at a glance
| Population | 3,851 |
| Density | 14 per sq mi |
| Median household income | $55,402 |
| Median home value | $193,212 |
| Home ownership | 86% |
Waste facilities and haulers nearby
Historical data: truck crashes in Johnson 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 | 2 | — | 0.3 |
| 2000s | 5 | +112% | 0.5 |
| 2010s | 6 | +9% | 0.4 |
| 2020s | 6 | +6% | 0.2 |
In the 1990s about 2 truck crashes a year were reported; in the 2020s, about 6. Reporting coverage also changed between these periods. Fatal large-truck crashes: 0.8 a year in 2016–19, 0.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 37640
How many truck crashes happen in ZIP 37640?
Johnson County has had 79 reported truck crashes since 2015, injuring 46 people and killing 5.
When do most truck crashes happen in ZIP 37640?
The worst month is January: 16.5% of truck crashes in Johnson County happen then.
How many garbage truck accidents happen in ZIP 37640?
Garbage trucks were involved in 2 reported crashes in Johnson County since 2015 (2.5% of truck crashes).
How does ZIP 37640 compare with Tennessee for truck crashes?
Johnson County records 35.9 truck crashes per 100,000 residents a year, against 60.1 across Tennessee.
How can I plan a safer truck route in ZIP 37640?
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.