ZIP 21758 (Knoxville, MD) truck route planning & crash data
Plan safer truck routes around ZIP 21758: commercial truck and garbage truck crashes here and in Washington 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
19 of 1,894 truck crashes since 2015.
Deadliest roads
How Washington County compares with Maryland
Washington County against Maryland and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Washington County stands out
Full comparison
| Measure (2015–2025) | Washington County | Maryland | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 103.7 | 49.3 | 49.7 | 2.1× the state |
| Deaths per 100 crashes | 2.9 | 2.2 | 3.4 | 1.3× the state |
| Injuries per crash | 0.46 | 0.53 | 0.49 | 13% below the state |
| Garbage-truck share | 1.1% | 3.1% | 2.3% | 65% below the state |
| On snow, slush or ice | 2.2% | 2.4% | 6.2% | 10% below the state |
| Morning rush (6–10 am) | 17.8% | 24.7% | 23.7% | 28% below the state |
| In rain, sleet or snow | 17.1% | 13.8% | 13.8% | 1.2× the state |
| Winter months (Nov–Mar) | 39.8% | 40.4% | 41.9% | same |
| After dark | 30.2% | 25.2% | 24.8% | 1.2× the state |
Washington County has lower values than Maryland for injuries per crash, garbage-truck share and on snow, slush or ice. Where it is higher: crashes per 100k residents / yr, deaths per 100 crashes and in rain, sleet or snow.
What stands out in Washington County: 1 in 94 crashes involve a garbage truck (19 since 2015), vs 3.1% across Maryland.
Overview
Police reported 1,894 crashes involving commercial trucks in Washington County since 2015: 861 people were injured and 53 were killed.
In complete reporting years that works out to about one truck crash every 2 days.
When crashes happen
The worst month is December with 9.8% of truck crashes; the quietest is February at 6.8%.
The five winter months (November to March) hold 39.8% of truck crashes, against 40.4% across Maryland.
More truck crashes happen at 12–1 pm than at any other hour (7.3%).
Snow, slush or ice was on the road in 2.2% of truck crashes, compared with 2.4% in Maryland.
Where crashes happen
Within this area, US-15 had the most fatal crashes involving a large truck since 2015 (3). Next come CR-17 (1), SR-34 (1) and US-340 (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 19 crashes, 1.0% of the total, against 3.1% across Maryland.
Route planning tips for ZIP 21758 fleets
- Plan December schedules with more margin; it is the worst month for truck crashes in Washington County.
- Look at alternatives to US-15 at busy times: it leads this area in fatal truck crashes.
- 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 Washington County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-15 | 3 |
| CR-17 | 1 |
| SR-34 | 1 |
| US-340 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Washington County) |
|---|---|
| Eisenhower Memorial Hwy | 519 |
| Maryland Veterans Memorial Hwy | 384 |
| National Freeway | 59 |
| Halfway Blvd | 52 |
| Acrs Marked Off Road | 41 |
| Greencastle Pike | 30 |
| Hopewell Rd | 25 |
| National Pike | 23 |
ZIP 21758 at a glance
| Population | 4,409 |
| Density | 53 per sq mi |
| Median household income | $111,528 |
| Median home value | $414,086 |
| Home ownership | 84% |
Waste facilities and haulers nearby
Historical data: truck crashes in Washington 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 | 69 | — | 2.1 |
| 2000s | 78 | +12% | 2.5 |
| 2010s | 117 | +50% | 2.8 |
| 2020s | 180 | +54% | 3.0 |
In the 1990s about 69 truck crashes a year were reported; in the 2020s, about 180. Reporting coverage also changed between these periods. NHTSA counts 3.5 fatal large-truck crashes a year in 2016–19 and 3.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 21758
How many truck accidents are there in ZIP 21758?
Washington County has had 1,894 reported truck crashes since 2015, injuring 861 people and killing 53.
Which road has the most fatal truck crashes in ZIP 21758?
Since 2015, US-15 has had the most fatal large-truck crashes within 10 miles of ZIP 21758: 3.
What is the worst month for truck crashes in ZIP 21758?
Truck crashes in Washington County peak in December, with 9.8% of the year's crashes.
How many garbage truck accidents happen in ZIP 21758?
Garbage trucks were involved in 19 reported crashes in Washington County since 2015 (1.0% of truck crashes).
How does ZIP 21758 compare with Maryland for truck crashes?
The yearly rate is 103.7 truck crashes per 100,000 residents in Washington County, vs 49.3 for Maryland.
How can I plan a safer truck route in ZIP 21758?
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.