ZIP 21778 (Rocky Ridge, MD) truck route planning & crash data
Plan safer truck routes around ZIP 21778: commercial truck and garbage truck crashes here and in Frederick 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
10.2 deaths per 100 garbage-truck crashes vs 2.8 for all trucks.
Deadliest roads
How Frederick County compares with Maryland
Frederick County against Maryland and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Frederick County stands out
Full comparison
| Measure (2015–2025) | Frederick County | Maryland | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 61.2 | 49.3 | 49.7 | 1.2× the state |
| Deaths per 100 crashes | 2.8 | 2.2 | 3.4 | 1.3× the state |
| Injuries per crash | 0.46 | 0.53 | 0.49 | 13% below the state |
| Garbage-truck share | 2.4% | 3.1% | 2.3% | 21% below the state |
| On snow, slush or ice | 2.7% | 2.4% | 6.2% | 1.1× the state |
| Morning rush (6–10 am) | 26.6% | 24.7% | 23.7% | 1.1× the state |
| In rain, sleet or snow | 14.6% | 13.8% | 13.8% | same |
| Winter months (Nov–Mar) | 39.5% | 40.4% | 41.9% | same |
| After dark | 24.8% | 25.2% | 24.8% | same |
Frederick County sits below Maryland on injuries per crash and garbage-truck share. It stands out for higher crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice.
The headline for ZIP 21778: US-15 5 fatal truck crashes since 2015, more than any other road within 10 miles of ZIP 21778.
Overview
Police reported 2,133 crashes involving commercial trucks in Frederick County since 2015: 974 people were injured and 60 were killed.
Across the years with complete reporting, that is roughly one truck crash every 2 days.
When crashes happen
October has the most truck crashes, 9.6% of the yearly total, while February has the fewest (7.2%).
The five winter months (November to March) hold 39.5% of truck crashes, against 40.4% across Maryland.
By time of day, 8–9 am stands out with 7.7% of truck crashes.
2.7% of truck crashes here happened on snow, slush or ice, against 2.4% across Maryland.
Where crashes happen
US-15 leads within 10 miles of ZIP 21778 with 5 fatal crashes involving a large truck since 2015. After it: SR-194 (2), SR-75 (2) and SR-77 (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 50 crashes, 2.3% of the total, against 3.1% across Maryland.
The most garbage-truck crashes happen in January (14%).
Per 100 crashes, garbage trucks recorded 10.2 deaths compared with 2.8 for all trucks.
Route planning tips for ZIP 21778 fleets
- Plan October schedules with more margin; it is the worst month for truck crashes in Frederick County.
- Check whether your routes use US-15, the road with the most fatal truck crashes in this area.
- Garbage-truck crashes here peak in January; review collection routes for that month.
- Morning starts matter: 26.6% of truck crashes fall between 6 and 10 am, higher than Maryland.
- Icy and snowy roads show up in 2.7% of truck crashes here, more than Maryland; 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 Frederick County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-15 | 5 |
| SR-194 | 2 |
| SR-75 | 2 |
| SR-77 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Frederick County) |
|---|---|
| Eisenhower Memorial Hwy | 465 |
| Balto National Pike | 222 |
| Catoctin Mountain Hwy | 174 |
| Liberty Rd | 71 |
| Jefferson National Pike | 67 |
| Buckeystown Pike | 65 |
| Green Valley Rd | 59 |
| Frederick Freeway | 57 |
ZIP 21778 at a glance
| Population | 745 |
| Density | 16 per sq mi |
| Median household income | $76,458 |
| Median home value | $422,648 |
| Home ownership | 81% |
Waste facilities and haulers nearby
Historical data: truck crashes in Frederick 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 | 78 | — | 3.6 |
| 2000s | 92 | +17% | 3.5 |
| 2010s | 128 | +40% | 3.7 |
| 2020s | 199 | +55% | 5.2 |
In the 1990s about 78 truck crashes a year were reported; in the 2020s, about 199. Reporting coverage also changed between these periods. Fatal large-truck crashes: 4.5 a year in 2016–19, 5.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 21778
How many truck crashes happen in ZIP 21778?
Frederick County has had 2,133 reported truck crashes since 2015, injuring 974 people and killing 60.
What is the most dangerous road for trucks in ZIP 21778?
NHTSA data shows US-15 with 5 fatal large-truck crashes within 10 miles of ZIP 21778 since 2015, the highest of any road.
What is the worst month for truck crashes in ZIP 21778?
The worst month is October: 9.6% of truck crashes in Frederick County happen then.
How many garbage truck accidents happen in ZIP 21778?
Garbage trucks were involved in 50 reported crashes in Frederick County since 2015 (2.3% of truck crashes).
How does ZIP 21778 compare with Maryland for truck crashes?
Frederick County records 61.2 truck crashes per 100,000 residents a year, against 49.3 across Maryland.
How can I plan a safer truck route in ZIP 21778?
Use the free Route Planner: enter your stops to get a risk score, safer alternatives and the low bridges on your route.
2026 is a partial year. Updated October 2026.