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Traffic | vehicles per day6,003 |
|---|---|
Trucks | 5.3% |
Average travel time | 30.5 min |
Congestion ratio | 16.3% |
Drivers’ average age | 45.1 yrs |
Drivers’ average income | $122,833 |
Our data shows 6,003 vehicles per day on the average road in St. Mary's County, Maryland, and 2,184,014 vehicle-miles traveled per day (≈797 million per year) across its 332 miles of monitored roads. About 1 in 19 vehicles is a truck, fewer than the 1 in 13 across Maryland.
St. Mary's sees 22% lower average daily traffic volume than the state average (6,003 vehicles per day against 7,693), suggesting less demand on each road - a factor worth weighing in site selection and logistics planning. Across the whole network, that travel is about 1.6% of Maryland's statewide total. St. Mary's carries more traffic than 65% of counties in Maryland.
The average trip takes 30.5 minutes, 10% lower than the state level. 87% of counties in Maryland have a longer average travel time than St. Mary's's 30.5 minutes.
At 21% lower than the state level, the 16.3% congestion ratio signals smoother traffic flow - relevant for traffic control and delivery planning.
| Traffic | vehicles per day17,851 |
|---|---|
| Trucks | 5.6% |
| Average travel time | 33.6 min |
| Congestion ratio | 39.0% |
| Drivers’ average age | 45.5 yrs |
| Drivers’ average income | $122,294 |
Highways carry a significant share of travel in St. Mary's County, Maryland: 44% of all vehicle-miles. The average highway carries 17,851 vehicles per day, 259% more than the average non-highway road in the same area, which carries 4,974 vehicles per day.
With 17% of the road miles (55 miles in 656 segments), highways punch above their length, carrying 951,272 vehicle-miles traveled per day (≈347 million per year).
Highway truck concentration here runs 43% lower than the state average, at 5.6%. Highways here carry mainly commuter and local trips, with little through freight.
By share, St. Mary's has the lowest highway truck concentration in Maryland, at 5.6%. By raw truck volume, St. Mary's carries fewer highway trucks than 91% of counties in Maryland.
| Traffic | vehicles per day4,974 |
|---|---|
| Trucks | 5.0% |
| Average travel time | 30.2 min |
| Congestion ratio | 14.3% |
| Drivers’ average age | 44.6 yrs |
| Drivers’ average income | $123,253 |
A little more than half of the driving in St. Mary's County, Maryland happens on local roads: 56% of all vehicle-miles. A typical local road sees 4,974 vehicles per day.
Spread over 277 miles and 7,553 segments, 83% of the road network, local roads carry a lighter load per mile: 1,232,742 vehicle-miles traveled per day (≈450 million per year). The truck share on non-highway roads is 5.0%.
Compared to highways, non-highway routes see 10% fewer trucks by share.
At 25% lower than the state level, the non-highway congestion ratio of 14.3% signals easier movement on local roads.
74% of counties in Maryland see lower average driver income among trip origins than St. Mary's. St. Mary's's median driver age is lower than 85% of counties in Maryland.
Mobile device location data (anonymized and aggregated)
Road sensor networks and traffic counters
Historical traffic pattern databases
Identify traffic patterns street by street and analyze the exact corridors that matter to your project.
