Johnson County, TN truck route planning & crash data
Plan safer truck routes in Johnson 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
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. Where it is 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
Johnson County has recorded 79 truck crashes since 2015, with 46 people injured and 5 killed.
Across the years with complete reporting, that is roughly one truck crash every 55 days.
When crashes happen
January has the most truck crashes, 16.5% of the yearly total, while May has the fewest (2.5%).
Winter months (Nov–Mar) carry 50.7% of truck crashes, vs 40.5% for Tennessee.
More truck crashes happen at 9–10 am than at any other hour (10.1%).
2.7% of truck crashes here happened on snow, slush or ice, against 2.3% across Tennessee.
Where crashes happen
Since 2015, fatal crashes with a large truck in Johnson County happened on CR-PLEASANT Valley Rd (1), SR-67 (1), SR-91 (1) and US-421 (1); no road leads clearly.
Garbage & waste trucks
2 crashes involved a garbage or refuse truck, a 2.5% share (Tennessee: 1.9%).
Route planning tips for Johnson County fleets
- Build extra time into January routes: it has the most truck crashes here.
- The morning rush (6–10 am) holds 26.0% of truck crashes here, more than Tennessee; adjust start times where you can.
- With 2.7% of truck crashes on snow, slush or ice (above Tennessee), plan winter equipment 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 (in Johnson County) |
|---|---|
| CR-PLEASANT Valley Rd | 1 |
| SR-67 | 1 |
| SR-91 | 1 |
| US-421 | 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 |
Johnson County at a glance
| Population | 18,506 |
| Land area | 298.4 sq mi |
| Density | 62 per sq mi |
| Median household income (ZIP average) | $54,319 |
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 |
Reported truck crashes averaged 2 a year in the 1990s and 6 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 0.8 a year in 2016–19 and 0.2 a year in 2020–24.
Cities, towns & communities in Johnson County
ZIP codes in Johnson County
Nearby counties
Questions fleets ask about Johnson County
How common are truck crashes in Johnson County?
Johnson County has had 79 reported truck crashes since 2015, injuring 46 people and killing 5.
Which month has the most truck crashes in Johnson County?
January has the most truck crashes in Johnson County, 16.5% of the yearly total.
How many garbage truck accidents happen in Johnson County?
Since 2015, Johnson County has reported 2 garbage-truck crashes, or 2.5% of its truck crashes.
How does Johnson County compare with Tennessee for truck crashes?
Per 100,000 residents, Johnson County has 35.9 truck crashes a year; Tennessee has 60.1.
How can I plan a safer truck route in Johnson County?
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.