Custer County, ID truck route planning & crash data
Plan safer truck routes in Custer 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
1 of 24 truck crashes since 2015.
Deadliest roads
How Custer County compares with Idaho
Custer County against Idaho and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Custer County stands out
Full comparison
| Measure (2015–2025) | Custer County | Idaho | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 39.6 | 37.4 | 49.7 | same |
| Deaths per 100 crashes | 15.0 | 6.1 | 3.4 | 2.5× the state |
| Injuries per crash | 0.35 | 0.55 | 0.49 | 36% below the state |
| Garbage-truck share | 0.0% | 1.6% | 2.3% | 100% below the state |
| On snow, slush or ice | 15.0% | 16.0% | 6.2% | same |
| Morning rush (6–10 am) | 15.0% | 23.0% | 23.7% | 35% below the state |
| In rain, sleet or snow | 5.0% | 10.2% | 13.8% | 51% below the state |
| Winter months (Nov–Mar) | 20.0% | 40.9% | 41.9% | 51% below the state |
| After dark | 15.0% | 22.8% | 24.8% | 34% below the state |
Custer County has lower values than Idaho for injuries per crash, garbage-truck share and morning rush (6–10 am). Where it is higher: deaths per 100 crashes.
Custer County at a glance: SR-75 deadliest road: 2 fatal truck crashes in Custer County since 2015.
Overview
Police reported 24 crashes involving commercial trucks in Custer County since 2015: 8 people were injured and 4 were killed.
In complete reporting years that works out to about one truck crash every 201 days.
When crashes happen
The worst month is July with 16.7% of truck crashes; the quietest is January at 0.0%.
November through March accounts for 20.0% of truck crashes here, compared with 40.9% in Idaho.
By time of day, 4–5 pm stands out with 16.7% of truck crashes.
Snow, slush or ice was on the road in 15.0% of truck crashes, compared with 16.0% in Idaho.
Where crashes happen
The deadliest road for trucks in Custer County is SR-75, with 2 fatal large-truck crashes since 2015. It is followed by Morgan Creek Rd (1), SR-21 (1) and US-93 (1).
Garbage & waste trucks
1 crash involved a garbage or refuse truck, a 4.2% share (Idaho: 1.6%).
Route planning tips for Custer County fleets
- Build extra time into July routes: it has the most truck crashes here.
- Where you can, review stops along SR-75; it has the most fatal large-truck crashes nearby.
- 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 Custer County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (in Custer County) |
|---|---|
| SR-75 | 2 |
| Morgan Creek Rd | 1 |
| SR-21 | 1 |
| US-93 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Custer County) |
|---|---|
| US-93 | 16 |
| Sh 75 | 5 |
| Houston | 1 |
| Morgan Creek | 1 |
| Thompson Creek | 1 |
Custer County at a glance
| Population | 4,597 |
| Land area | 4,922.2 sq mi |
| Density | 1 per sq mi |
| Median household income (ZIP average) | $54,952 |
Waste facilities and haulers nearby
Historical data: truck crashes in Custer 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 | 3 | — | 0.0 |
| 2000s | 3 | +9% | 0.1 |
| 2010s | 2 | -41% | 0.4 |
| 2020s | 2 | -2% | 0.2 |
Reported truck crashes averaged 3 a year in the 1990s and 2 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 1.0 fatal large-truck crashes a year in 2016–19 and 0.2 a year in 2020–24.
Cities, towns & communities in Custer County
ZIP codes in Custer County
Nearby counties
Questions fleets ask about Custer County
How common are truck crashes in Custer County?
24 truck crashes have been reported in Custer County since 2015, with 4 deaths and 8 injuries.
Which road has the most fatal truck crashes in Custer County?
NHTSA data shows SR-75 with 2 fatal large-truck crashes in Custer County since 2015, the highest of any road.
When do most truck crashes happen in Custer County?
July has the most truck crashes in Custer County, 16.7% of the yearly total.
How many garbage truck crashes are there in Custer County?
Garbage trucks were involved in 1 reported crash in Custer County since 2015 (4.2% of truck crashes).
What is the truck crash rate in Custer County compared with Idaho?
Custer County records 39.6 truck crashes per 100,000 residents a year, against 37.4 across Idaho.
What is the best way to plan truck routes in Custer County?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.