ZIP 21737 (Glenelg, MD) truck route planning & crash data
Plan safer truck routes around ZIP 21737: commercial truck and garbage truck crashes here and in Howard 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
0.0 deaths per 100 garbage-truck crashes vs 2.0 for all trucks.
Deadliest roads
How Howard County compares with Maryland
Howard County against Maryland and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Howard County stands out
Full comparison
| Measure (2015–2025) | Howard County | Maryland | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 61.9 | 49.3 | 49.7 | 1.3× the state |
| Deaths per 100 crashes | 2.0 | 2.2 | 3.4 | 9% below the state |
| Injuries per crash | 0.41 | 0.53 | 0.49 | 23% below the state |
| Garbage-truck share | 2.2% | 3.1% | 2.3% | 28% below the state |
| On snow, slush or ice | 2.5% | 2.4% | 6.2% | same |
| Morning rush (6–10 am) | 26.0% | 24.7% | 23.7% | same |
| In rain, sleet or snow | 13.5% | 13.8% | 13.8% | same |
| Winter months (Nov–Mar) | 40.7% | 40.4% | 41.9% | same |
| After dark | 28.3% | 25.2% | 24.8% | 1.1× the state |
Howard County has lower values than Maryland for deaths per 100 crashes, injuries per crash and garbage-truck share. Where it is higher: crashes per 100k residents / yr and after dark.
What stands out in ZIP 21737: I-70 most fatal truck crashes within 10 miles of ZIP 21737: 8 since 2015.
Overview
Police reported 2,423 crashes involving commercial trucks in Howard County since 2015: 1,016 people were injured and 49 were killed.
Across the years with complete reporting, that is roughly one truck crash every 2 days.
When crashes happen
Truck crashes peak in October (9.9% of the year) and are lowest in April (6.5%).
The five winter months (November to March) hold 40.7% of truck crashes, against 40.4% across Maryland.
The busiest hour is 2–3 pm, with 7.1% of truck crashes.
2.5% of truck crashes here happened on snow, slush or ice, against 2.4% across Maryland.
Where crashes happen
Within this area, I-70 had the most fatal crashes involving a large truck since 2015 (8). Next come SR-32 (4), CR-3283 (1) and CR-4139 Wightman Rd (1).
Garbage & waste trucks
53 crashes involved a garbage or refuse truck, a 2.2% share (Maryland: 3.1%).
Their busiest month is May, with 13% of garbage-truck crashes.
They recorded 0.0 deaths per 100 crashes, against 2.0 for all trucks.
Route planning tips for ZIP 21737 fleets
- Review driver schedules for October, the month with the most truck crashes.
- Look at alternatives to I-70 at busy times: it leads this area in fatal truck crashes.
- Waste haulers: May is the peak month for garbage-truck crashes in Howard County.
- Check your own stops for crash hotspots and low bridges with the free Route Planner.
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 Howard County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| I-70 | 8 |
| SR-32 | 4 |
| CR-3283 | 1 |
| CR-4139 Wightman Rd | 1 |
| CR-70 | 1 |
| SR-198 | 1 |
| SR-97 | 1 |
| US-29 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Howard County) |
|---|---|
| No Name | 1,054 |
| Washington Blvd | 175 |
| Columbia Pike | 61 |
| Sykesville Rd | 53 |
| Patuxent Pkwy | 53 |
| Waterloo Rd | 52 |
| Acrs Marked Off Road | 42 |
| Is95 | 28 |
ZIP 21737 at a glance
| Population | 2,474 |
| Density | 186 per sq mi |
| Median household income | $250,001 |
| Median home value | $1,008,312 |
| Home ownership | 93% |
Waste facilities and haulers nearby
Historical data: truck crashes in Howard 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 | 104 | — | 3.6 |
| 2000s | 116 | +12% | 3.5 |
| 2010s | 174 | +50% | 3.1 |
| 2020s | 219 | +26% | 4.4 |
From the 1990s to the 2020s, yearly reported truck crashes went from 104 to 219. Some of the change may reflect how crashes were reported. NHTSA counts 3.5 fatal large-truck crashes a year in 2016–19 and 4.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 21737
How common are truck crashes in ZIP 21737?
Howard County has had 2,423 reported truck crashes since 2015, injuring 1,016 people and killing 49.
What is the most dangerous road for trucks in ZIP 21737?
I-70 had 8 fatal crashes involving a large truck within 10 miles of ZIP 21737 since 2015, more than any other road.
Which month has the most truck crashes in ZIP 21737?
The worst month is October: 9.9% of truck crashes in Howard County happen then.
Are garbage truck crashes common in ZIP 21737?
Since 2015, Howard County has reported 53 garbage-truck crashes, or 2.2% of its truck crashes.
What is the truck crash rate in ZIP 21737 compared with Maryland?
Howard County records 61.9 truck crashes per 100,000 residents a year, against 49.3 across Maryland.
How can I plan a safer truck route in ZIP 21737?
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.