ZIP 21639 (Greensboro, MD) truck route planning & crash data
Plan safer truck routes around ZIP 21639: commercial truck and garbage truck crashes here and in Caroline 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
9 of 266 truck crashes since 2015.
Deadliest roads
How Caroline County compares with Maryland
Caroline County against Maryland and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Caroline County stands out
Full comparison
| Measure (2015–2025) | Caroline County | Maryland | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 66.9 | 49.3 | 49.7 | 1.4× the state |
| Deaths per 100 crashes | 6.3 | 2.2 | 3.4 | 2.9× the state |
| Injuries per crash | 0.62 | 0.53 | 0.49 | 1.2× the state |
| Garbage-truck share | 3.6% | 3.1% | 2.3% | 1.2× the state |
| On snow, slush or ice | 2.0% | 2.4% | 6.2% | 18% below the state |
| Morning rush (6–10 am) | 30.6% | 24.7% | 23.7% | 1.2× the state |
| In rain, sleet or snow | 14.3% | 13.8% | 13.8% | same |
| Winter months (Nov–Mar) | 40.9% | 40.4% | 41.9% | same |
| After dark | 15.5% | 25.2% | 24.8% | 39% below the state |
Compared with Maryland, Caroline County is lower on on snow, slush or ice and after dark. It stands out for higher crashes per 100k residents / yr, deaths per 100 crashes and injuries per crash.
The headline for Caroline County: 6.3 deaths per 100 truck crashes, vs 2.2 in Maryland.
Overview
Since 2015, 266 crashes involving commercial trucks have been reported in Caroline County. They injured 165 people and killed 17.
That averages about one truck crash every 16 days in fully reported years.
When crashes happen
Truck crashes peak in June (11.7% of the year) and are lowest in April (5.6%).
The five winter months (November to March) hold 40.9% of truck crashes, against 40.4% across Maryland.
More truck crashes happen at 9–10 am than at any other hour (9.8%).
Road surface: 2.0% of truck crashes were on snow, slush or ice (Maryland: 2.4%).
Where crashes happen
Within this area, SR-404 had the most fatal crashes involving a large truck since 2015 (6). Next come SR-12 (1), SR-14 (1) and SR-16 (1).
Garbage & waste trucks
Garbage and refuse trucks were involved in 9 crashes, 3.4% of the total, against 3.1% across Maryland.
Route planning tips for ZIP 21639 fleets
- Plan June schedules with more margin; it is the worst month for truck crashes in Caroline County.
- Where you can, review stops along SR-404; it has the most fatal large-truck crashes nearby.
- The morning rush (6–10 am) holds 30.6% of truck crashes here, more than Maryland; adjust start times where you can.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
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 Caroline County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| SR-404 | 6 |
| SR-12 | 1 |
| SR-14 | 1 |
| SR-16 | 1 |
| SR-314 | 1 |
| SR-317 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Caroline County) |
|---|---|
| Shore Hwy | 76 |
| Federalsburg Hwy | 22 |
| Greensboro Rd | 15 |
| Harmony Rd | 8 |
| Bridgeville Rd | 6 |
| Dover Bridge Rd | 5 |
| Ridgely Rd | 5 |
| Burrsville Rd | 4 |
ZIP 21639 at a glance
| Population | 4,682 |
| Density | 55 per sq mi |
| Median household income | $62,772 |
| Median home value | $274,634 |
| Home ownership | 72% |
Waste facilities and haulers nearby
Historical data: truck crashes in Caroline 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 | 14 | — | 1.3 |
| 2000s | 11 | -21% | 1.3 |
| 2010s | 16 | +42% | 1.2 |
| 2020s | 28 | +72% | 1.0 |
From the 1990s to the 2020s, yearly reported truck crashes went from 14 to 28. Some of the change may reflect how crashes were reported. Fatal large-truck crashes: 1.5 a year in 2016–19, 1.0 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 21639
How common are truck crashes in ZIP 21639?
Caroline County has had 266 reported truck crashes since 2015, injuring 165 people and killing 17.
Where do fatal truck crashes happen most in ZIP 21639?
NHTSA data shows SR-404 with 6 fatal large-truck crashes within 10 miles of ZIP 21639 since 2015, the highest of any road.
What is the worst month for truck crashes in ZIP 21639?
The worst month is June: 11.7% of truck crashes in Caroline County happen then.
How many garbage truck crashes are there in ZIP 21639?
Since 2015, Caroline County has reported 9 garbage-truck crashes, or 3.4% of its truck crashes.
How do truck crashes in ZIP 21639 compare with Maryland?
The yearly rate is 66.9 truck crashes per 100,000 residents in Caroline County, vs 49.3 for Maryland.
How can I plan a safer truck route in ZIP 21639?
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.