Johnson County, IA 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
20 of 1,147 truck crashes since 2015.
Deadliest roads
How Johnson County compares with Iowa
Johnson County against Iowa 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 | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 61.7 | 68.1 | 49.7 | 9% below the state |
| Deaths per 100 crashes | 3.6 | 3.5 | 3.4 | same |
| Injuries per crash | 0.42 | 0.41 | 0.49 | same |
| Garbage-truck share | 1.7% | 2.2% | 2.3% | 24% below the state |
| On snow, slush or ice | 20.1% | 18.7% | 6.2% | 1.1× the state |
| Morning rush (6–10 am) | 21.4% | 24.0% | 23.7% | 11% below the state |
| In rain, sleet or snow | 18.4% | 15.1% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 47.3% | 45.4% | 41.9% | same |
| After dark | 27.1% | 23.1% | 24.8% | 1.2× the state |
Johnson County has lower values than Iowa for crashes per 100k residents / yr, garbage-truck share and morning rush (6–10 am). Where it is higher: on snow, slush or ice, in rain, sleet or snow and after dark.
The headline for Johnson County: I-80 most fatal truck crashes in Johnson County: 12 since 2015.
Overview
Police reported 1,147 crashes involving commercial trucks in Johnson County since 2015: 466 people were injured and 40 were killed.
Across the years with complete reporting, that is roughly one truck crash every 4 days.
When crashes happen
The worst month is January with 12.4% of truck crashes; the quietest is September at 6.5%.
The five winter months (November to March) hold 47.3% of truck crashes, against 45.4% across Iowa.
More truck crashes happen at 3–4 pm than at any other hour (7.6%).
20.1% of truck crashes here happened on snow, slush or ice, against 18.7% across Iowa.
Where crashes happen
The deadliest road for trucks in Johnson County is I-80, with 12 fatal large-truck crashes since 2015. Next come I-380 (2), CR-F08/MORSE Rd (1) and CR-F12 120 St (1).
Garbage & waste trucks
Garbage trucks account for 20 of the truck crashes here, or 1.7%, compared with 2.2% in Iowa.
The most garbage-truck crashes happen in May (15%).
Route planning tips for Johnson County fleets
- Review driver schedules for January, the month with the most truck crashes.
- Check whether your routes use I-80, the road with the most fatal truck crashes in this area.
- Garbage-truck crashes here peak in May; review collection routes for that month.
- 20.1% of truck crashes were on snow, slush or ice, above Iowa; plan winter equipment checks before the season.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Johnson County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (in Johnson County) |
|---|---|
| I-80 | 12 |
| I-380 | 2 |
| CR-F08/MORSE Rd | 1 |
| CR-F12 120 St | 1 |
| CR-F20/AMANA Rd | 1 |
| CR-F52/BLACK Diamond Rd Sw | 1 |
| SR-1 | 1 |
| SR-22 | 1 |
| US-218 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Johnson County) |
|---|---|
| I-80 | 76 |
| Interstate 80/I 80 | 63 |
| I-380 | 29 |
| Interstate 380/I 380 | 28 |
| US-218 | 23 |
| US-6 | 15 |
| State 1/Iowa 1 | 6 |
| Ia 1 | 5 |
Johnson County at a glance
| Population | 160,080 |
| Land area | 613.0 sq mi |
| Density | 261 per sq mi |
| Median household income (ZIP average) | $77,324 |
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 | 40 | — | 1.7 |
| 2000s | 71 | +79% | 2.2 |
| 2010s | 92 | +29% | 1.7 |
| 2020s | 100 | +9% | 2.0 |
Reported truck crashes averaged 40 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 2.5 fatal large-truck crashes a year in 2016–19 and 2.0 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 many truck crashes happen in Johnson County?
1,147 truck crashes have been reported in Johnson County since 2015, with 40 deaths and 466 injuries.
Which road has the most fatal truck crashes in Johnson County?
I-80 had 12 fatal crashes involving a large truck in Johnson County since 2015, more than any other road.
When do most truck crashes happen in Johnson County?
January has the most truck crashes in Johnson County, 12.4% of the yearly total.
How many garbage truck accidents happen in Johnson County?
20 crashes involving garbage or refuse trucks have been reported in Johnson County since 2015, 1.7% of all truck crashes.
How does Johnson County compare with Iowa for truck crashes?
Per 100,000 residents, Johnson County has 61.7 truck crashes a year; Iowa has 68.1.
How can I plan a safer truck route in Johnson County?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
2026 is a partial year. Updated October 2026.