ZIP 51244 (Matlock, IA) truck route planning & crash data
Plan safer truck routes around ZIP 51244: commercial truck and garbage truck crashes here and in Sioux 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
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. It stands out for higher crashes per 100k residents / yr, injuries per crash and on snow, slush or ice.
The headline for Sioux County: 1 in 127 crashes involve a garbage truck (3 since 2015), vs 2.2% across Iowa.
Overview
Police reported 401 crashes involving commercial trucks in Sioux County since 2015: 233 people were injured and 16 were killed.
In complete reporting years that works out to about one truck crash every 11 days.
When crashes happen
Truck crashes peak in January (11.0% of the year) and are lowest in February (5.2%).
November through March accounts for 45.3% of truck crashes here, compared with 45.4% in Iowa.
The busiest hour is 11 am–12 pm, with 9.5% of truck crashes.
Snow, slush or ice was on the road in 21.1% of truck crashes, compared with 18.7% in Iowa.
Where crashes happen
The deadliest road for trucks within 10 miles of ZIP 51244 is US-18, with 3 fatal large-truck crashes since 2015. After it: 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 ZIP 51244 fleets
- Plan January schedules with more margin; it is the worst month for truck crashes in Sioux County.
- Check whether your routes use US-18, the road with the most fatal truck crashes in this area.
- Icy and snowy roads show up in 21.1% of truck crashes here, more than Iowa; schedule winter checks early.
- 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 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 |
ZIP 51244 at a glance
| Population | 144 |
| Density | 147 per sq mi |
| Median household income | $83,365 |
| Median home value | $139,657 |
| Home ownership | 97% |
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 |
Reported truck crashes averaged 11 a year in the 1990s and 34 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 1.0 a year in 2016–19 and 1.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 51244
How many truck crashes happen in ZIP 51244?
Sioux County has had 401 reported truck crashes since 2015, injuring 233 people and killing 16.
Which road has the most fatal truck crashes in ZIP 51244?
Since 2015, US-18 has had the most fatal large-truck crashes within 10 miles of ZIP 51244: 3.
When do most truck crashes happen in ZIP 51244?
January has the most truck crashes in Sioux County, 11.0% of the yearly total.
How many garbage truck crashes are there in ZIP 51244?
Garbage trucks were involved in 3 reported crashes in Sioux County since 2015 (0.7% of truck crashes).
What is the truck crash rate in ZIP 51244 compared with Iowa?
Sioux County records 94.5 truck crashes per 100,000 residents a year, against 68.1 across Iowa.
How do I plan a garbage truck route in ZIP 51244?
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.