Agar, SD truck route planning & crash data
Plan safer truck routes in Agar: commercial truck and garbage truck crashes in Agar and Sully County, dangerous roads, seasonality and route safety data for fleets. Patterns use Sully County numbers.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
1 of 13 truck crashes since 2015.
Deadliest roads
No fatal large-truck crashes with a road name recorded here since 2015.
The headline for Sully County: 13 reported truck crashes in Sully County since 2015.
Overview
Police reported 13 crashes involving commercial trucks in Sully County since 2015: 1 people were injured and 2 were killed.
That averages about one truck crash every 309 days in fully reported years.
Agar had 0 reported truck crashes since 2015, too few for reliable patterns, so the charts and findings on this page use Sully County numbers.
When crashes happen
Sully County has too few reported truck crashes for a monthly pattern.
Where crashes happen
Since 2015, no fatal large-truck crashes with a location were recorded within 10 miles of Agar.
Garbage & waste trucks
Garbage and refuse trucks were involved in 1 crash, 7.7% of the total, against 1.6% across South Dakota.
Route planning tips for Agar fleets
- 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 Sully County
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 (Sully County) |
|---|---|
| US-83 | 8 |
| Sd Hwy 1804 | 3 |
| Ave | 1 |
Agar at a glance
| Population | 68 |
| Land area | 0.2 sq mi |
| Density | 332 per sq mi |
| Median household income (ZIP 57520) | $50,417 |
| Median home value (ZIP 57520) | $165,772 |
Historical data: truck crashes in Sully 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 | 1 | -69% | 0.0 |
| 2010s | 1 | +0% | 0.0 |
| 2020s | 2 | +138% | 0.0 |
In the 1990s about 2 truck crashes a year were reported; in the 2020s, about 2. Reporting coverage also changed between these periods.
Nearby places
Questions fleets ask about Agar
How common are truck crashes in Agar?
Sully County has had 13 reported truck crashes since 2015, injuring 1 people and killing 2.
How many garbage truck crashes are there in Agar?
Since 2015, Sully County has reported 1 garbage-truck crash, or 7.7% of its truck crashes.
How do I plan a garbage truck route in Agar?
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.