Matlock, IA truck route planning & crash data
Plan safer truck routes in Matlock: commercial truck and garbage truck crashes in Matlock and Sioux County, dangerous roads, seasonality and route safety data for fleets. Patterns use Sioux County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
3 of 401 truck crashes since 2015.
Deadliest roads
How Sioux County compares with Iowa
Sioux County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Sioux County stands out
Full comparison
| Measure (2015–2025) | Sioux County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 94.5 | 68.1 | 49.7 | 1.4× the state |
| Deaths per 100 crashes | 3.7 | 3.5 | 3.4 | same |
| Injuries per crash | 0.58 | 0.41 | 0.49 | 1.4× the state |
| Garbage-truck share | 0.8% | 2.2% | 2.3% | 64% below the state |
| On snow, slush or ice | 21.1% | 18.7% | 6.2% | 1.1× the state |
| Morning rush (6–10 am) | 25.3% | 24.0% | 23.7% | same |
| In rain, sleet or snow | 10.8% | 15.1% | 13.8% | 29% below the state |
| Winter months (Nov–Mar) | 45.3% | 45.4% | 41.9% | same |
| After dark | 20.5% | 23.1% | 24.8% | 11% below the state |
Sioux County has lower values than Iowa for garbage-truck share, in rain, sleet or snow and after dark. Where it is higher: crashes per 100k residents / yr, injuries per crash and on snow, slush or ice.
Sioux County at a glance: 1 in 127 garbage-truck share of crashes is 0.8%, against 2.2% for Iowa.
Overview
Since 2015, 401 crashes involving commercial trucks have been reported in Sioux County. They injured 233 people and killed 16.
In complete reporting years that works out to about one truck crash every 11 days.
Matlock had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Sioux County numbers.
69% of truck crash reports in Sioux County since 2015 leave the city field blank; place counts include only reports that name the place.
When crashes happen
The worst month is January with 11.0% of truck crashes; the quietest is February at 5.2%.
Winter months (Nov–Mar) carry 45.3% of truck crashes, vs 45.4% for Iowa.
More truck crashes happen at 11 am–12 pm than at any other hour (9.5%).
Road surface: 21.1% of truck crashes were on snow, slush or ice (Iowa: 18.7%).
Where crashes happen
US-18 leads within 10 miles of Matlock with 3 fatal crashes involving a large truck since 2015. It is followed by CR-240TH St (1), CR-L36/NETTLE Ave (1) and SR-60 (1).
Garbage & waste trucks
Garbage trucks account for 3 of the truck crashes here, or 0.7%, compared with 2.2% in Iowa.
Route planning tips for Matlock fleets
- Review driver schedules for January, the month with the most truck crashes.
- Look at alternatives to US-18 at busy times: it leads this area in fatal truck crashes.
- With 21.1% of truck crashes on snow, slush or ice (above Iowa), plan winter equipment checks early.
- 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 Sioux County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-18 | 3 |
| CR-240TH St | 1 |
| CR-L36/NETTLE Ave | 1 |
| SR-60 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Sioux County) |
|---|---|
| Ia 60 | 12 |
| State 60/Iowa 60 And K064/Jack | 8 |
| US-18 | 8 |
| US-75 | 6 |
| State 60/Iowa 60 | 6 |
| Ia 10 | 4 |
| Fig Ave | 4 |
| State 10/450Th St And Us 75 | 4 |
Matlock at a glance
| Population | 74 |
| Land area | 0.4 sq mi |
| Density | 196 per sq mi |
| Median household income (ZIP 51244) | $83,365 |
| Median home value (ZIP 51244) | $139,657 |
Waste facilities and haulers nearby
Historical data: truck crashes in Sioux 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 | 11 | — | 1.3 |
| 2000s | 26 | +135% | 1.8 |
| 2010s | 34 | +31% | 1.1 |
| 2020s | 34 | -1% | 1.2 |
From the 1990s to the 2020s, yearly reported truck crashes went from 11 to 34. Some of the change may reflect how crashes were reported. Fatal crashes involving a large truck averaged 1.0 a year in 2016–19 and 1.2 a year in 2020–24.
Nearby places
Questions fleets ask about Matlock
How many truck crashes happen in Matlock?
401 truck crashes have been reported in Sioux County since 2015, with 16 deaths and 233 injuries.
What is the most dangerous road for trucks in Matlock?
Since 2015, US-18 has had the most fatal large-truck crashes within 10 miles of Matlock: 3.
What is the worst month for truck crashes in Matlock?
Truck crashes in Sioux County peak in January, with 11.0% of the year's crashes.
How many garbage truck accidents happen in Matlock?
Since 2015, Sioux County has reported 3 garbage-truck crashes, or 0.7% of its truck crashes.
How does Matlock compare with Iowa for truck crashes?
Per 100,000 residents, Sioux County has 94.5 truck crashes a year; Iowa has 68.1.
How do I plan a garbage truck route in Matlock?
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.