ZIP 20852 (Rockville, MD) truck route planning & crash data
Plan safer truck routes around ZIP 20852: commercial truck and garbage truck crashes here and in Montgomery 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
2.2 deaths per 100 garbage-truck crashes vs 1.0 for all trucks.
Deadliest roads
How Montgomery County compares with Maryland
Montgomery County against Maryland and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Montgomery County stands out
Full comparison
| Measure (2015–2025) | Montgomery County | Maryland | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 31.8 | 49.3 | 49.7 | 35% below the state |
| Deaths per 100 crashes | 1.0 | 2.2 | 3.4 | 55% below the state |
| Injuries per crash | 0.53 | 0.53 | 0.49 | same |
| Garbage-truck share | 4.8% | 3.1% | 2.3% | 1.6× the state |
| On snow, slush or ice | 1.9% | 2.4% | 6.2% | 19% below the state |
| Morning rush (6–10 am) | 26.3% | 24.7% | 23.7% | same |
| In rain, sleet or snow | 15.9% | 13.8% | 13.8% | 1.1× the state |
| Winter months (Nov–Mar) | 40.1% | 40.4% | 41.9% | same |
| After dark | 24.9% | 25.2% | 24.8% | same |
Montgomery County has lower values than Maryland for crashes per 100k residents / yr, deaths per 100 crashes and on snow, slush or ice. It stands out for higher garbage-truck share and in rain, sleet or snow.
The headline for ZIP 20852: 1.9× change in fatal truck crashes a year within 10 miles of ZIP 20852 (2.2 → 4.2).
Overview
Police reported 3,957 crashes involving commercial trucks in Montgomery County since 2015: 2,079 people were injured and 38 were killed.
That averages about 1 truck crash a day in fully reported years.
When crashes happen
The worst month is December with 9.6% of truck crashes; the quietest is February at 6.8%.
The five winter months (November to March) hold 40.1% of truck crashes, against 40.4% across Maryland.
More truck crashes happen at 8–9 am than at any other hour (8.4%).
Snow, slush or ice was on the road in 1.9% of truck crashes, compared with 2.4% in Maryland.
Where crashes happen
I-495 leads within 10 miles of ZIP 20852 with 9 fatal crashes involving a large truck since 2015. It is followed by I-95 (3), SR-190 (3) and I-270 (2).
Garbage & waste trucks
190 crashes involved a garbage or refuse truck, a 4.8% share (Maryland: 3.1%).
The most garbage-truck crashes happen in September (12%).
Deaths per 100 garbage-truck crashes: 2.2, vs 1.0 for all truck crashes.
Route planning tips for ZIP 20852 fleets
- Build extra time into December routes: it has the most truck crashes here.
- Look at alternatives to I-495 at busy times: it leads this area in fatal truck crashes.
- Garbage-truck crashes here peak in September; review collection routes for that month.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
Sources: the FMCSA crash file for all reported truck crashes and NHTSA FARS for fatal crashes with a large truck. Every statement here comes straight from those numbers.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Montgomery County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-495 | 9 |
| I-95 | 3 |
| SR-190 | 3 |
| I-270 | 2 |
| SR-193 | 2 |
| SR-200 | 2 |
| Ashbury Dr | 1 |
| CR-124 Arcola Ave | 1 |
| CR-212 Shady Grove Rd | 1 |
| CR-3283 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Montgomery County) |
|---|---|
| Capital Beltway | 851 |
| Eisenhower Memorial Hwy | 456 |
| Georgia Ave | 92 |
| Shady Grove Rd | 83 |
| Frederick Rd | 82 |
| Acrs Marked Off Road | 75 |
| New Hampshire Ave | 72 |
| Rockville Pike | 55 |
ZIP 20852 at a glance
| Population | 48,180 |
| Density | 2,304 per sq mi |
| Median household income | $122,472 |
| Median home value | $664,288 |
| Home ownership | 43% |
Waste facilities and haulers nearby
Historical data: truck crashes in Montgomery 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 | 177 | — | 3.7 |
| 2000s | 206 | +17% | 3.6 |
| 2010s | 262 | +27% | 2.6 |
| 2020s | 354 | +35% | 3.0 |
Reported truck crashes averaged 177 a year in the 1990s and 354 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. Fatal crashes involving a large truck averaged 2.0 a year in 2016–19 and 3.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 20852
How common are truck crashes in ZIP 20852?
3,957 truck crashes have been reported in Montgomery County since 2015, with 38 deaths and 2,079 injuries.
What is the most dangerous road for trucks in ZIP 20852?
NHTSA data shows I-495 with 9 fatal large-truck crashes within 10 miles of ZIP 20852 since 2015, the highest of any road.
What is the worst month for truck crashes in ZIP 20852?
Truck crashes in Montgomery County peak in December, with 9.6% of the year's crashes.
Are garbage truck crashes common in ZIP 20852?
190 crashes involving garbage or refuse trucks have been reported in Montgomery County since 2015, 4.8% of all truck crashes.
How does ZIP 20852 compare with Maryland for truck crashes?
The yearly rate is 31.8 truck crashes per 100,000 residents in Montgomery County, vs 49.3 for Maryland.
How do I plan a garbage truck route in ZIP 20852?
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.