Johnsonville, SC truck route planning & crash data
Plan safer truck routes in Johnsonville: commercial truck and garbage truck crashes in Johnsonville and Florence County, dangerous roads, seasonality and route safety data for fleets. Patterns use Florence County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
5.0 deaths per 100 garbage-truck crashes vs 5.8 for all trucks.
Deadliest roads
How Florence County compares with South Carolina
Florence County against South Carolina and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Florence County stands out
Full comparison
| Measure (2015–2025) | Florence County | South Carolina | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 76.5 | 61.6 | 49.7 | 1.2× the state |
| Deaths per 100 crashes | 5.8 | 3.9 | 3.4 | 1.5× the state |
| Injuries per crash | 0.67 | 0.64 | 0.49 | same |
| Garbage-truck share | 1.7% | 2.1% | 2.3% | 20% below the state |
| On snow, slush or ice | 0.3% | 0.4% | 6.2% | 41% below the state |
| Morning rush (6–10 am) | 22.0% | 24.0% | 23.7% | 9% below the state |
| In rain, sleet or snow | 13.9% | 11.4% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 42.5% | 40.5% | 41.9% | same |
| After dark | 23.3% | 21.5% | 24.8% | 1.1× the state |
Compared with South Carolina, Florence County is lower on garbage-truck share, on snow, slush or ice and morning rush (6–10 am). It runs above South Carolina on crashes per 100k residents / yr, deaths per 100 crashes and in rain, sleet or snow.
The headline for Johnsonville: US-378 deadliest road: 4 fatal truck crashes within 10 miles of Johnsonville since 2015.
Overview
Since 2015, 1,225 crashes involving commercial trucks have been reported in Florence County. They injured 800 people and killed 68.
Across the years with complete reporting, that is roughly one truck crash every 3 days.
Only 38 truck crashes were reported in Johnsonville since 2015; patterns below come from Florence County as a whole.
When crashes happen
Truck crashes peak in August (9.6% of the year) and are lowest in April (6.7%).
Winter months (Nov–Mar) carry 42.5% of truck crashes, vs 40.5% for South Carolina.
The busiest hour is 11 am–12 pm, with 8.1% of truck crashes.
Road surface: 0.3% of truck crashes were on snow, slush or ice (South Carolina: 0.4%).
Where crashes happen
The deadliest road for trucks within 10 miles of Johnsonville is US-378, with 4 fatal large-truck crashes since 2015. After it: SR-39 (1) and SR-41 (1).
Garbage & waste trucks
Garbage trucks account for 20 of the truck crashes here, or 1.6%, compared with 2.1% in South Carolina.
Their busiest month is March, with 15% of garbage-truck crashes.
Deaths per 100 garbage-truck crashes: 5.0, vs 5.8 for all truck crashes.
Route planning tips for Johnsonville fleets
- Build extra time into August routes: it has the most truck crashes here.
- Check whether your routes use US-378, the road with the most fatal truck crashes in this area.
- Garbage-truck crashes here peak in March; review collection routes for that month.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Florence County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-378 | 4 |
| SR-39 | 1 |
| SR-41 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Florence County) |
|---|---|
| I-95 | 126 |
| Paper Mill Road | 25 |
| N Williston Rd | 24 |
| E Palmetto St | 17 |
| N Cashua Dr | 12 |
| S Irby St | 12 |
| S Church St | 11 |
| E Old Marion Hwy | 10 |
Johnsonville at a glance
| Population | 1,350 |
| Land area | 2.1 sq mi |
| Density | 652 per sq mi |
| Median household income (ZIP 29555) | $43,011 |
| Median home value (ZIP 29555) | $143,577 |
Waste facilities and haulers nearby
Historical data: truck crashes in Florence 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 | 101 | — | 3.9 |
| 2000s | 103 | +2% | 4.2 |
| 2010s | 104 | +0% | 3.1 |
| 2020s | 100 | -3% | 5.0 |
Reported truck crashes averaged 101 a year in the 1990s and 100 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 3.2 fatal large-truck crashes a year in 2016–19 and 5.0 a year in 2020–24.
Nearby places
Questions fleets ask about Johnsonville
How many truck crashes happen in Johnsonville?
Florence County has had 1,225 reported truck crashes since 2015, injuring 800 people and killing 68.
Where do fatal truck crashes happen most in Johnsonville?
Since 2015, US-378 has had the most fatal large-truck crashes within 10 miles of Johnsonville: 4.
Which month has the most truck crashes in Johnsonville?
Truck crashes in Florence County peak in August, with 9.6% of the year's crashes.
How many garbage truck accidents happen in Johnsonville?
Garbage trucks were involved in 20 reported crashes in Florence County since 2015 (1.6% of truck crashes).
How do truck crashes in Johnsonville compare with South Carolina?
The yearly rate is 76.5 truck crashes per 100,000 residents in Florence County, vs 61.6 for South Carolina.
What is the best way to plan truck routes in Johnsonville?
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.