ZIP 21723 (Cooksville, MD) truck route planning & crash data
Plan safer truck routes around ZIP 21723: 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 sits below Maryland on deaths per 100 crashes, injuries per crash and garbage-truck share. It stands out for higher crashes per 100k residents / yr and after dark.
ZIP 21723 at a glance: I-70 deadliest road: 8 fatal truck crashes within 10 miles of ZIP 21723 since 2015.
Overview
Since 2015, 2,423 crashes involving commercial trucks have been reported in Howard County. They injured 1,016 people and killed 49.
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%).
Winter months (Nov–Mar) carry 40.7% of truck crashes, vs 40.4% for Maryland.
More truck crashes happen at 2–3 pm than at any other hour (7.1%).
Snow, slush or ice was on the road in 2.5% of truck crashes, compared with 2.4% in Maryland.
Where crashes happen
I-70 leads within 10 miles of ZIP 21723 with 8 fatal crashes involving a large truck since 2015. Next come SR-32 (5), SR-27 (3) and CR-1312 (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 53 crashes, 2.2% of the total, against 3.1% across Maryland.
The most garbage-truck crashes happen in May (13%).
They recorded 0.0 deaths per 100 crashes, against 2.0 for all trucks.
Route planning tips for ZIP 21723 fleets
- Build extra time into October routes: it has the most truck crashes here.
- Where you can, review stops along I-70; it has the most fatal large-truck crashes nearby.
- For residential and commercial waste routes, look again at May schedules: garbage-truck crashes peak then.
- 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 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 | 5 |
| SR-27 | 3 |
| CR-1312 | 1 |
| CR-70 | 1 |
| CR-SYKESVILLE Rd | 1 |
| Mu293 Pullman Ct | 1 |
| SR-26 | 1 |
| SR-97 | 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 21723 at a glance
| Population | 669 |
| Density | 72 per sq mi |
| Median household income | $241,250 |
| Home ownership | 95% |
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 |
In the 1990s about 104 truck crashes a year were reported; in the 2020s, about 219. Reporting coverage also changed between these periods. Fatal large-truck crashes: 3.5 a year in 2016–19, 4.4 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 21723
How many truck crashes happen in ZIP 21723?
Since 2015, 2,423 crashes involving commercial trucks were reported in Howard County (1,016 injured, 49 killed).
Where do fatal truck crashes happen most in ZIP 21723?
Since 2015, I-70 has had the most fatal large-truck crashes within 10 miles of ZIP 21723: 8.
What is the worst month for truck crashes in ZIP 21723?
Truck crashes in Howard County peak in October, with 9.9% of the year's crashes.
Are garbage truck crashes common in ZIP 21723?
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 21723 compared with Maryland?
Howard County records 61.9 truck crashes per 100,000 residents a year, against 49.3 across Maryland.
What is the best way to plan truck routes in ZIP 21723?
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.