ZIP 57533 (Gregory, SD) truck route planning & crash data
Plan safer truck routes around ZIP 57533: commercial truck and garbage truck crashes here and in Gregory 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
0 of 36 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
How Gregory County compares with South Dakota
Gregory County against South Dakota and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Gregory County stands out
Full comparison
| Measure (2015–2025) | Gregory County | South Dakota | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 73.0 | 42.0 | 49.7 | 1.7× the state |
| Deaths per 100 crashes | 3.0 | 5.2 | 3.4 | 42% below the state |
| Injuries per crash | 0.39 | 0.13 | 0.49 | 3.0× the state |
| Garbage-truck share | 0.0% | 1.6% | 2.3% | 100% below the state |
| On snow, slush or ice | 27.3% | 28.6% | 6.2% | same |
| Morning rush (6–10 am) | 33.3% | 22.2% | 23.7% | 1.5× the state |
| In rain, sleet or snow | 15.2% | 17.5% | 13.8% | 14% below the state |
| Winter months (Nov–Mar) | 72.7% | 48.8% | 41.9% | 1.5× the state |
| After dark | 39.4% | 22.8% | 24.8% | 1.7× the state |
Gregory County has lower values than South Dakota for deaths per 100 crashes, garbage-truck share and in rain, sleet or snow. It stands out for higher crashes per 100k residents / yr, injuries per crash and morning rush (6–10 am).
Gregory County at a glance: January worst month: 30.6% of truck crashes, vs 8.3% in an average month.
Overview
Police reported 36 crashes involving commercial trucks in Gregory County since 2015: 13 people were injured and 1 were killed.
In complete reporting years that works out to about one truck crash every 122 days.
When crashes happen
Truck crashes peak in January (30.6% of the year) and are lowest in April (0.0%).
The five winter months (November to March) hold 72.7% of truck crashes, against 48.8% across South Dakota.
The busiest hour is 9–10 am, with 13.9% of truck crashes.
27.3% of truck crashes here happened on snow, slush or ice, against 28.6% across South Dakota.
Where crashes happen
NHTSA lists no located fatal large-truck crashes within 10 miles of ZIP 57533 since 2015.
Garbage & waste trucks
Since 2015, no garbage-truck crashes were reported for Gregory County.
Route planning tips for ZIP 57533 fleets
- Build extra time into January routes: it has the most truck crashes here.
- The morning rush (6–10 am) holds 33.3% of truck crashes here, more than South Dakota; adjust start times where you can.
- 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 Gregory 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 (Gregory County) |
|---|---|
| US-18 | 22 |
| Sd Hwy 44 | 8 |
| US-281 | 3 |
| Lucas Rd | 1 |
| Sd Hwy 47 | 1 |
ZIP 57533 at a glance
| Population | 1,674 |
| Density | 2 per sq mi |
| Median household income | $58,500 |
| Median home value | $131,058 |
| Home ownership | 69% |
Waste facilities and haulers nearby
Historical data: truck crashes in Gregory 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 | 2 | — | 0.2 |
| 2000s | 2 | -5% | 0.4 |
| 2010s | 3 | +53% | 0.2 |
| 2020s | 4 | +26% | 0.0 |
From the 1990s to the 2020s, yearly reported truck crashes went from 2 to 4. Some of the change may reflect how crashes were reported. NHTSA counts 0.2 fatal large-truck crashes a year in 2016–19 and 0.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 57533
How many truck crashes happen in ZIP 57533?
36 truck crashes have been reported in Gregory County since 2015, with 1 deaths and 13 injuries.
When do most truck crashes happen in ZIP 57533?
January has the most truck crashes in Gregory County, 30.6% of the yearly total.
How many garbage truck crashes are there in ZIP 57533?
Since 2015, Gregory County has reported 0 garbage-truck crashes, or 0.0% of its truck crashes.
What is the truck crash rate in ZIP 57533 compared with South Dakota?
Gregory County records 73.0 truck crashes per 100,000 residents a year, against 42.0 across South Dakota.
What is the best way to plan truck routes in ZIP 57533?
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.