ZIP 83321 (Castleford, ID) truck route planning & crash data
Plan safer truck routes around ZIP 83321: commercial truck and garbage truck crashes here and in Twin Falls County, 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
11 of 523 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Twin Falls County compares with Idaho
Twin Falls County against Idaho and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Twin Falls County stands out
Full comparison
| Measure (2015–2025) | Twin Falls County | Idaho | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 46.7 | 37.4 | 49.7 | 1.2× the state |
| Deaths per 100 crashes | 6.0 | 6.1 | 3.4 | same |
| Injuries per crash | 0.62 | 0.55 | 0.49 | 1.1× the state |
| Garbage-truck share | 2.2% | 1.6% | 2.3% | 1.4× the state |
| On snow, slush or ice | 8.7% | 16.0% | 6.2% | 46% below the state |
| Morning rush (6–10 am) | 21.6% | 23.0% | 23.7% | same |
| In rain, sleet or snow | 5.0% | 10.2% | 13.8% | 51% below the state |
| Winter months (Nov–Mar) | 32.9% | 40.9% | 41.9% | 20% below the state |
| After dark | 22.0% | 22.8% | 24.8% | same |
Twin Falls County sits below Idaho on on snow, slush or ice, in rain, sleet or snow and winter months (nov–mar). It stands out for higher crashes per 100k residents / yr, injuries per crash and garbage-truck share.
Twin Falls County at a glance: 1 in 45 of truck crashes here involve garbage trucks: 2.2%, vs 1.6% in Idaho.
Overview
Police reported 523 crashes involving commercial trucks in Twin Falls County since 2015: 338 people were injured and 35 were killed.
That averages about one truck crash every 8 days in fully reported years.
When crashes happen
Truck crashes peak in October (12.6% of the year) and are lowest in November (5.5%).
The five winter months (November to March) hold 32.9% of truck crashes, against 40.9% across Idaho.
More truck crashes happen at 12–1 pm than at any other hour (8.4%).
Road surface: 8.7% of truck crashes were on snow, slush or ice (Idaho: 16.0%).
Where crashes happen
No fatal crash involving a large truck has a recorded location within 10 miles of ZIP 83321 since 2015.
Garbage & waste trucks
Garbage and refuse trucks were involved in 11 crashes, 2.1% of the total, against 1.6% across Idaho.
Route planning tips for ZIP 83321 fleets
- Review driver schedules for October, the month with the most truck crashes.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
About the data
This report uses the FMCSA crash file (reported crashes of trucks over 10,000 lb) and NHTSA FARS (fatal crashes). It reports the numbers without guessing at reasons.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Twin Falls County
By hour of day
Most dangerous roads for trucks
No fatal crashes involving a large truck with a road name were recorded within 10 miles since 2015.
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Twin Falls County) |
|---|---|
| US-93 | 89 |
| East | 75 |
| US-30 | 63 |
| North | 54 |
| Sh 50 | 42 |
| Blue Lakes | 17 |
| North Rd | 13 |
| Pole Line | 12 |
ZIP 83321 at a glance
| Population | 482 |
| Density | 1 per sq mi |
| Median household income | $60,000 |
| Median home value | $334,714 |
| Home ownership | 67% |
Waste facilities and haulers nearby
Historical data: truck crashes in Twin Falls 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 | 15 | — | 2.2 |
| 2000s | 41 | +171% | 2.0 |
| 2010s | 38 | -7% | 1.7 |
| 2020s | 46 | +21% | 3.6 |
From the 1990s to the 2020s, yearly reported truck crashes went from 15 to 46. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 2.8 a year in 2016–19 and 3.6 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 83321
How many truck crashes happen in ZIP 83321?
523 truck crashes have been reported in Twin Falls County since 2015, with 35 deaths and 338 injuries.
When do most truck crashes happen in ZIP 83321?
October has the most truck crashes in Twin Falls County, 12.6% of the yearly total.
How many garbage truck accidents happen in ZIP 83321?
Garbage trucks were involved in 11 reported crashes in Twin Falls County since 2015 (2.1% of truck crashes).
How does ZIP 83321 compare with Idaho for truck crashes?
The yearly rate is 46.7 truck crashes per 100,000 residents in Twin Falls County, vs 37.4 for Idaho.
How do I plan a garbage truck route in ZIP 83321?
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.