
Total Traffic Volume & Performance in Cumberland County, Maine
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day6,686 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 8.1% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 32.7 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. | 19.1% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.8 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $98,147 |
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Our data shows 6,686 vehicles per day on the average road in Cumberland County, Maine, and 6,382,380 vehicle-miles traveled per day (≈2.3 billion per year) across its 923 miles of monitored roads. About 1 in 12 vehicles is a truck, in line with Maine (8.7%).
The busiest roads of any county in Maine
At 6,686 vehicles per day, the average monitored road in Cumberland carries 38% more traffic than the state average of 4,836, suggesting more demand on each road - a busier backdrop for retail sites, at the cost of slower access. Across the whole network, that travel is about 20% of Maine's statewide total. At 6,686 vehicles per day, Cumberland posts the highest average traffic volume in Maine.
At 32.7 minutes, the average travel time is 6% lower than the state level. 93% of counties in Maine have a longer average travel time than Cumberland's 32.7 minutes.
Congestion runs 31% higher than the state level, at a ratio of 19.1%, which means more pronounced congestion - expect slower peak-hour deliveries and less predictable arrival times.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Cumberland County, Maine
| Traffic | vehicles per day12,302 |
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| Trucks | 12.3% |
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| Average travel time | 39.0 min |
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| Congestion ratio | 33.0% |
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| Drivers’ average age | 47.9 yrs |
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| Drivers’ average income | $95,322 |
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Highways carry a significant share of travel in Cumberland County, Maine: 37% of all vehicle-miles. The average highway carries 12,302 vehicles per day, 94% more than the average non-highway road in the same area, which carries 6,356 vehicles per day.
With 20% of the road miles (182 miles in 1,165 segments), highways punch above their length, carrying 2,338,192 vehicle-miles traveled per day (≈853 million per year).
No county in Maine moves more traffic on its highways.
More highway trucks than 86% of counties in Maine
At 12.3%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Maine: neither freight- nor commuter-dominated.
50% of counties in Maine see a lower highway truck share than Cumberland's 12.3%. 86% of counties in Maine see fewer highway trucks per day than Cumberland's roughly 1,513.

Non-highway Traffic in Cumberland County, Maine
| Traffic | vehicles per day6,356 |
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| Trucks | 5.7% |
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| Average travel time | 32.3 min |
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| Congestion ratio | 18.3% |
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| Drivers’ average age | 47.8 yrs |
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| Drivers’ average income | $99,459 |
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A little more than half of the driving in Cumberland County, Maine happens on local roads: 63% of all vehicle-miles. The average non-highway road carries 6,356 vehicles per day.
Local roads make up 80% of the monitored road miles (740 miles in 19,863 segments) but carry less than their share of travel: 4,044,188 vehicle-miles traveled per day (≈1.5 billion per year). Trucks make up 5.7% of non-highway traffic, about 1 in 18 vehicles.
The highest driver income of any county in Maine
Compared to highways, non-highway routes see 54% fewer trucks by share.
At 32% higher than the state level, the non-highway congestion ratio of 18.3% signals more friction on local roads.
Cumberland also has the highest average driver income in Maine among trip origins - $98,147. At 48 years, Cumberland's median driver age is the lowest in Maine.