
Total Traffic Volume & Performance in St. Lawrence County, New York
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,341 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 9.0% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 34.5 min |
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Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 12.5% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 45.6 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $68,058 |
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The average monitored road in St. Lawrence County, New York carries 3,341 vehicles per day. Across its 952 miles of monitored roads, that adds up to 2,040,283 vehicle-miles traveled per day (≈745 million per year). Trucks are 9.0% of traffic, close to the 8.0% across New York.
Traffic 55% below the New York average
St. Lawrence sees 55% lower average daily traffic volume than the state average (3,341 vehicles per day against 7,377), suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. In total volume terms, its road network carries about 0.8% of New York's statewide total of vehicle-miles. 61% of counties in New York see more traffic than St. Lawrence's 3,341 vehicles per day.
The average trip takes 34.5 minutes, on par with the state level. Its average travel time of 34.5 minutes is shorter than 52% of counties in New York.
At 39% lower than the state level, the 12.5% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in St. Lawrence County, New York
| Traffic | vehicles per day5,176 |
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| Trucks | 10.4% |
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| Average travel time | 33.8 min |
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| Congestion ratio | 14.7% |
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| Drivers’ average age | 45.3 yrs |
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| Drivers’ average income | $68,191 |
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Travel in St. Lawrence County, New York splits roughly evenly, with about half of it (47% of vehicle-miles) on highways. The average highway carries 5,176 vehicles per day, 98% more than the average non-highway road in the same area, which carries 2,619 vehicles per day.
Highways make up 23% of the monitored road miles (215 miles, 1,766 segments), so they carry more than their share: 959,968 vehicle-miles traveled per day (≈350 million per year).
52% of counties in New York move less traffic on their highways.
Fewer highway trucks than 97% of counties in New York
At 10.4%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for New York: neither freight- nor commuter-dominated.
63% of counties in New York see a higher highway truck share than St. Lawrence's 10.4%. 97% of counties in New York see more highway trucks per day than St. Lawrence's roughly 539.

Non-highway Traffic in St. Lawrence County, New York
| Traffic | vehicles per day2,619 |
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| Trucks | 7.7% |
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| Average travel time | 34.7 min |
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| Congestion ratio | 11.7% |
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| Drivers’ average age | 46.0 yrs |
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| Drivers’ average income | $67,926 |
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Travel in St. Lawrence County, New York splits roughly evenly, with about half of it (53% of vehicle-miles) on local roads. A typical local road sees 2,619 vehicles per day.
Spread over 737 miles and 4,488 segments, 77% of the road network, local roads carry a lighter load per mile: 1,080,316 vehicle-miles traveled per day (≈394 million per year). About 1 in 13 vehicles on non-highway roads is a truck (7.7%).
Younger drivers than 89% of counties in New York
Compared to highways, non-highway routes see 26% fewer trucks by share.
Non-highway congestion (11.7%) runs 40% lower than the state average, pointing to smoother local traffic flow.
84% of counties in New York see higher average driver income among trip origins than St. Lawrence. The driver population here skews younger than 89% of counties in New York.