ZIP 21757 (Keymar, MD) truck route planning & crash data
Plan safer truck routes around ZIP 21757: commercial truck and garbage truck crashes here and in Carroll 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
2.4 deaths per 100 garbage-truck crashes vs 3.4 for all trucks.
Deadliest roads
How Carroll County compares with Maryland
Carroll County against Maryland and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Carroll County stands out
Full comparison
| Measure (2015–2025) | Carroll County | Maryland | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 40.2 | 49.3 | 49.7 | 18% below the state |
| Deaths per 100 crashes | 3.4 | 2.2 | 3.4 | 1.5× the state |
| Injuries per crash | 0.42 | 0.53 | 0.49 | 21% below the state |
| Garbage-truck share | 5.2% | 3.1% | 2.3% | 1.7× the state |
| On snow, slush or ice | 2.5% | 2.4% | 6.2% | same |
| Morning rush (6–10 am) | 28.4% | 24.7% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 13.9% | 13.8% | 13.8% | same |
| Winter months (Nov–Mar) | 39.4% | 40.4% | 41.9% | same |
| After dark | 18.0% | 25.2% | 24.8% | 29% below the state |
Carroll County sits below Maryland on crashes per 100k residents / yr, injuries per crash and after dark. Where it is higher: deaths per 100 crashes, garbage-truck share and morning rush (6–10 am).
What stands out in Carroll County: 1 in 19 of truck crashes here involve garbage trucks: 5.2%, vs 3.1% in Maryland.
Overview
Since 2015, 833 crashes involving commercial trucks have been reported in Carroll County. They injured 360 people and killed 27.
Across the years with complete reporting, that is roughly one truck crash every 5 days.
When crashes happen
The worst month is October with 10.6% of truck crashes; the quietest is March at 7.1%.
The five winter months (November to March) hold 39.4% of truck crashes, against 40.4% across Maryland.
By time of day, 9–10 am stands out with 8.3% of truck crashes.
2.5% 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 21757 with 5 fatal crashes involving a large truck since 2015. After it: SR-194 (2), SR-26 (2) and SR-75 (2).
Garbage & waste trucks
44 crashes involved a garbage or refuse truck, a 5.3% share (Maryland: 3.1%).
Their busiest month is November, with 20% of garbage-truck crashes.
They recorded 2.4 deaths per 100 crashes, against 3.4 for all trucks.
Route planning tips for ZIP 21757 fleets
- Plan October schedules with more margin; it is the worst month for truck crashes in Carroll County.
- Where you can, review stops along US-15; it has the most fatal large-truck crashes nearby.
- Waste haulers: November is the peak month for garbage-truck crashes in Carroll County.
- Morning starts matter: 28.4% of truck crashes fall between 6 and 10 am, higher than Maryland.
- Use the free Route Planner to score your route and spot low bridges before drivers head out.
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 Carroll 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-26 | 2 |
| SR-75 | 2 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Carroll County) |
|---|---|
| Baltimore Blvd | 113 |
| Ridge Rd | 65 |
| Liberty Rd | 56 |
| Littlestown Pike | 43 |
| Sykesville Rd | 33 |
| Hanover Pike | 30 |
| Francis Scott Key Hwy | 15 |
| Balto National Pike | 15 |
ZIP 21757 at a glance
| Population | 2,671 |
| Density | 29 per sq mi |
| Median household income | $100,500 |
| Median home value | $469,375 |
| Home ownership | 82% |
Waste facilities and haulers nearby
Historical data: truck crashes in Carroll 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 | 34 | — | 2.3 |
| 2000s | 50 | +44% | 2.5 |
| 2010s | 57 | +15% | 2.0 |
| 2020s | 75 | +32% | 2.2 |
Reported truck crashes averaged 34 a year in the 1990s and 75 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 2.8 fatal large-truck crashes a year in 2016–19 and 2.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 21757
How many truck crashes happen in ZIP 21757?
Carroll County has had 833 reported truck crashes since 2015, injuring 360 people and killing 27.
Which road has the most fatal truck crashes in ZIP 21757?
US-15 had 5 fatal crashes involving a large truck within 10 miles of ZIP 21757 since 2015, more than any other road.
When do most truck crashes happen in ZIP 21757?
October has the most truck crashes in Carroll County, 10.6% of the yearly total.
How many garbage truck accidents happen in ZIP 21757?
44 crashes involving garbage or refuse trucks have been reported in Carroll County since 2015, 5.3% of all truck crashes.
How does ZIP 21757 compare with Maryland for truck crashes?
Per 100,000 residents, Carroll County has 40.2 truck crashes a year; Maryland has 49.3.
How do I plan a garbage truck route in ZIP 21757?
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.