ZIP 51231 (Archer, IA) truck route planning & crash data
Plan safer truck routes around ZIP 51231: commercial truck and garbage truck crashes here and in O'Brien 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
2 of 143 truck crashes since 2015.
Deadliest roads
How O'Brien County compares with Iowa
O'Brien County against Iowa and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where O'Brien County stands out
Full comparison
| Measure (2015–2025) | O'Brien County | Iowa | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 87.3 | 68.1 | 49.7 | 1.3× the state |
| Deaths per 100 crashes | 0.7 | 3.5 | 3.4 | 80% below the state |
| Injuries per crash | 0.58 | 0.41 | 0.49 | 1.4× the state |
| Garbage-truck share | 1.5% | 2.2% | 2.3% | 33% below the state |
| On snow, slush or ice | 23.4% | 18.7% | 6.2% | 1.3× the state |
| Morning rush (6–10 am) | 22.6% | 24.0% | 23.7% | same |
| In rain, sleet or snow | 10.9% | 15.1% | 13.8% | 28% below the state |
| Winter months (Nov–Mar) | 48.2% | 45.4% | 41.9% | same |
| After dark | 16.8% | 23.1% | 24.8% | 27% below the state |
Compared with Iowa, O'Brien County is lower on deaths per 100 crashes, garbage-truck share and in rain, sleet or snow. It runs above Iowa on crashes per 100k residents / yr, injuries per crash and on snow, slush or ice.
O'Brien County at a glance: December 15.4% of truck crashes happen in December, more than any other month.
Overview
Since 2015, 143 crashes involving commercial trucks have been reported in O'Brien County. They injured 83 people and killed 1.
In complete reporting years that works out to about one truck crash every 29 days.
When crashes happen
The worst month is December with 15.4% of truck crashes; the quietest is March at 4.2%.
November through March accounts for 48.2% of truck crashes here, compared with 45.4% in Iowa.
The busiest hour is 10–11 am, with 9.8% of truck crashes.
23.4% of truck crashes here happened on snow, slush or ice, against 18.7% across Iowa.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of ZIP 51231 happened on CR-L36/NETTLE Ave (1) and US-18 (1); no road leads clearly.
Garbage & waste trucks
Garbage and refuse trucks were involved in 2 crashes, 1.4% of the total, against 2.2% across Iowa.
Route planning tips for ZIP 51231 fleets
- Build extra time into December routes: it has the most truck crashes here.
- Icy and snowy roads show up in 23.4% of truck crashes here, more than Iowa; schedule winter checks early.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 O'Brien County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| CR-L36/NETTLE Ave | 1 |
| US-18 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (O'Brien County) |
|---|---|
| Us 18/320Th St | 9 |
| US-18 | 8 |
| Eastern St And Us 18/E 7Th St | 4 |
| US-59 | 4 |
| Ia 60 | 3 |
| 2Nd Ave | 2 |
| L026 / Mckinley Ave | 2 |
| L026/Mckinley Ave And 430Th St | 2 |
ZIP 51231 at a glance
| Population | 562 |
| Density | 9 per sq mi |
| Median household income | $108,058 |
| Median home value | $182,651 |
| Home ownership | 94% |
Historical data: truck crashes in O'Brien 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 | 6 | — | 0.5 |
| 2000s | 6 | +7% | 0.4 |
| 2010s | 11 | +82% | 0.1 |
| 2020s | 13 | +17% | 0.2 |
From the 1990s to the 2020s, yearly reported truck crashes went from 6 to 13. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 0.0 a year in 2016–19, 0.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 51231
How many truck crashes happen in ZIP 51231?
143 truck crashes have been reported in O'Brien County since 2015, with 1 deaths and 83 injuries.
When do most truck crashes happen in ZIP 51231?
December has the most truck crashes in O'Brien County, 15.4% of the yearly total.
How many garbage truck crashes are there in ZIP 51231?
2 crashes involving garbage or refuse trucks have been reported in O'Brien County since 2015, 1.4% of all truck crashes.
How do truck crashes in ZIP 51231 compare with Iowa?
The yearly rate is 87.3 truck crashes per 100,000 residents in O'Brien County, vs 68.1 for Iowa.
How can I plan a safer truck route in ZIP 51231?
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.