Nampa, ID truck route planning & crash data
Plan safer truck routes in Nampa: 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
14 of 450 truck crashes since 2015.
Deadliest roads
How Nampa compares with Idaho
Nampa against Idaho and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Nampa stands out
Full comparison
| Measure (2015–2025) | Nampa | Idaho | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 33.3 | 37.4 | 49.7 | 11% below the state |
| Deaths per 100 crashes | 1.9 | 6.1 | 3.4 | 69% below the state |
| Injuries per crash | 0.59 | 0.55 | 0.49 | 1.1× the state |
| Garbage-truck share | 2.8% | 1.6% | 2.3% | 1.8× the state |
| On snow, slush or ice | 9.1% | 16.0% | 6.2% | 43% below the state |
| Morning rush (6–10 am) | 27.2% | 23.0% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 6.7% | 10.2% | 13.8% | 34% below the state |
| Winter months (Nov–Mar) | 36.7% | 40.9% | 41.9% | 10% below the state |
| After dark | 16.1% | 22.8% | 24.8% | 29% below the state |
Nampa sits below Idaho on crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. Where it is higher: injuries per crash, garbage-truck share and morning rush (6–10 am).
What stands out in Nampa: 1 in 36 garbage-truck share of crashes is 2.8%, against 1.6% for Idaho.
Overview
Since 2015, 450 crashes involving commercial trucks have been reported in Nampa. They injured 269 people and killed 9.
Across the years with complete reporting, that is roughly one truck crash every 9 days.
When crashes happen
September has the most truck crashes, 10.4% of the yearly total, while November has the fewest (5.1%).
Winter months (Nov–Mar) carry 36.7% of truck crashes, vs 40.9% for Idaho.
By time of day, 9–10 am stands out with 8.9% of truck crashes.
9.1% of truck crashes here happened on snow, slush or ice, against 16.0% across Idaho.
Where crashes happen
Within this area, I-84 had the most fatal crashes involving a large truck since 2015 (12). It is followed by SR-55 (4), US-20 (4) and Robinson Rd (2).
Garbage & waste trucks
Garbage and refuse trucks were involved in 14 crashes, 3.1% of the total, against 1.6% across Idaho.
Route planning tips for Nampa fleets
- Review driver schedules for September, the month with the most truck crashes.
- Where you can, review stops along I-84; it has the most fatal large-truck crashes nearby.
- 27.2% of truck crashes happen between 6 and 10 am, above Idaho; consider earlier or later starts where possible.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Nampa
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 15 miles) |
|---|---|
| I-84 | 12 |
| SR-55 | 4 |
| US-20 | 4 |
| Robinson Rd | 2 |
| SR-44 | 2 |
| 11th North Ave | 1 |
| 12th Ave | 1 |
| 12th South Ave | 1 |
| Can Ada Rd | 1 |
| Executive Dr | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Nampa) |
|---|---|
| I-84 | 155 |
| Robinson | 13 |
| Karcher | 13 |
| Northside | 11 |
| Garrity | 11 |
| Karcher Rd | 9 |
| Franklin | 9 |
| Sh 45 | 8 |
Nampa at a glance
| Population | 117,350 |
| Land area | 35.9 sq mi |
| Density | 3,267 per sq mi |
| Median household income (ZIP 83687) | $76,682 |
| Median home value (ZIP 83687) | $402,824 |
Waste facilities and haulers nearby
Historical data: truck crashes in Nampa 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 | 9 | — | 2.1 |
| 2000s | 30 | +225% | 2.5 |
| 2010s | 30 | -1% | 3.0 |
| 2020s | 37 | +24% | 4.2 |
From the 1990s to the 2020s, yearly reported truck crashes went from 9 to 37. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 4.5 a year in 2016–19, 4.2 a year in 2020–24.
Nearby places
Questions fleets ask about Nampa
How common are truck crashes in Nampa?
Nampa has had 450 reported truck crashes since 2015, injuring 269 people and killing 9.
Which road has the most fatal truck crashes in Nampa?
I-84 had 12 fatal crashes involving a large truck within 15 miles of Nampa since 2015, more than any other road.
Which month has the most truck crashes in Nampa?
The worst month is September: 10.4% of truck crashes in Nampa happen then.
How many garbage truck accidents happen in Nampa?
14 crashes involving garbage or refuse trucks have been reported in Nampa since 2015, 3.1% of all truck crashes.
What is the truck crash rate in Nampa compared with Idaho?
Nampa records 33.3 truck crashes per 100,000 residents a year, against 37.4 across Idaho.
How can I plan a safer truck route in Nampa?
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.