ZIP 77861 (Iola, TX) truck route planning & crash data
Plan safer truck routes around ZIP 77861: commercial truck and garbage truck crashes here and in Grimes 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
8 of 503 truck crashes since 2015.
Deadliest roads
How Grimes County compares with Texas
Grimes County against Texas and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Grimes County stands out
Full comparison
| Measure (2015–2025) | Grimes County | Texas | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 129.9 | 62.9 | 49.7 | 2.1× the state |
| Deaths per 100 crashes | 5.9 | 4.1 | 3.4 | 1.4× the state |
| Injuries per crash | 0.64 | 0.58 | 0.49 | 1.1× the state |
| Garbage-truck share | 1.5% | 1.1% | 2.3% | 1.3× the state |
| On snow, slush or ice | 1.7% | 1.7% | 6.2% | same |
| Morning rush (6–10 am) | 23.4% | 22.6% | 23.7% | same |
| In rain, sleet or snow | 5.4% | 11.3% | 13.8% | 52% below the state |
| Winter months (Nov–Mar) | 41.0% | 40.8% | 41.9% | same |
| After dark | 22.2% | 27.0% | 24.8% | 18% below the state |
Grimes County has lower values than Texas for in rain, sleet or snow and after dark. It runs above Texas on crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
ZIP 77861 at a glance: SR-30 most fatal truck crashes within 10 miles of ZIP 77861: 3 since 2015.
Overview
Since 2015, 503 crashes involving commercial trucks have been reported in Grimes County. They injured 325 people and killed 34.
That averages about one truck crash every 8 days in fully reported years.
When crashes happen
Truck crashes peak in August (11.9% of the year) and are lowest in April (4.6%).
Winter months (Nov–Mar) carry 41.0% of truck crashes, vs 40.8% for Texas.
By time of day, 2–3 pm stands out with 8.5% of truck crashes.
Road surface: 1.7% of truck crashes were on snow, slush or ice (Texas: 1.7%).
Where crashes happen
SR-30 leads within 10 miles of ZIP 77861 with 3 fatal crashes involving a large truck since 2015. It is followed by Fm 1179 (1), Fm 39 (1) and SR-90 (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 8 crashes, 1.6% of the total, against 1.1% across Texas.
Route planning tips for ZIP 77861 fleets
- Build extra time into August routes: it has the most truck crashes here.
- Look at alternatives to SR-30 at busy times: it leads this area in fatal 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 Grimes County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-30 | 3 |
| Fm 1179 | 1 |
| Fm 39 | 1 |
| SR-90 | 1 |
| US-190 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Grimes County) |
|---|---|
| State Highway 6 | 19 |
| Sh 6 | 13 |
| Sh 90 | 9 |
| Sh 105 | 7 |
| State Highway 90 | 6 |
| County Road 180 | 3 |
| SR-30 | 3 |
| Sh 30 | 3 |
ZIP 77861 at a glance
| Population | 3,065 |
| Density | 10 per sq mi |
| Median household income | $67,275 |
| Median home value | $257,163 |
| Home ownership | 86% |
Waste facilities and haulers nearby
Historical data: truck crashes in Grimes 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 | 18 | — | 0.7 |
| 2000s | 29 | +61% | 1.5 |
| 2010s | 37 | +28% | 2.4 |
| 2020s | 42 | +14% | 2.4 |
Reported truck crashes averaged 18 a year in the 1990s and 42 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 2.2 fatal large-truck crashes a year in 2016–19 and 2.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 77861
How many truck accidents are there in ZIP 77861?
503 truck crashes have been reported in Grimes County since 2015, with 34 deaths and 325 injuries.
Which road has the most fatal truck crashes in ZIP 77861?
NHTSA data shows SR-30 with 3 fatal large-truck crashes within 10 miles of ZIP 77861 since 2015, the highest of any road.
When do most truck crashes happen in ZIP 77861?
Truck crashes in Grimes County peak in August, with 11.9% of the year's crashes.
How many garbage truck crashes are there in ZIP 77861?
8 crashes involving garbage or refuse trucks have been reported in Grimes County since 2015, 1.6% of all truck crashes.
What is the truck crash rate in ZIP 77861 compared with Texas?
Per 100,000 residents, Grimes County has 129.9 truck crashes a year; Texas has 62.9.
How do I plan a garbage truck route in ZIP 77861?
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.