
Total Traffic Volume & Performance in Rockingham County, New Hampshire
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day6,008 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 7.3% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 30.5 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. | 16.9% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 49.8 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $120,147 |
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The average monitored road in Rockingham County, New Hampshire carries 6,008 vehicles per day. Across its 962 miles of monitored roads, that adds up to 7,966,621 vehicle-miles traveled per day (≈2.9 billion per year). About 1 in 14 vehicles is a truck, in line with New Hampshire (7.0%).
Shorter trips than 89% of counties in New Hampshire
At 6,008 vehicles per day, the average road in Rockingham carries somewhat more traffic than the state average of 5,669 (6% more). In total volume terms, its road network carries about 24% of New Hampshire's statewide total of vehicle-miles. By volume, Rockingham's 6,008 vehicles per day outpaces 67% of counties in New Hampshire.
The average trip takes 30.5 minutes, 7% lower than the state level. On travel time, Rockingham runs shorter than 89% of counties in New Hampshire.
Congestion here (16.9%) closely tracks the state level.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Rockingham County, New Hampshire
| Traffic | vehicles per day15,568 |
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| Trucks | 9.6% |
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| Average travel time | 41.1 min |
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| Congestion ratio | 31.3% |
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| Drivers’ average age | 49.1 yrs |
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| Drivers’ average income | $116,288 |
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Travel in Rockingham County, New Hampshire splits roughly evenly, with about half of it (51% of vehicle-miles) on highways. The average highway carries 15,568 vehicles per day, 188% more than the average non-highway road in the same area, which carries 5,410 vehicles per day.
With 19% of the road miles (183 miles in 1,718 segments), highways punch above their length, carrying 4,080,814 vehicle-miles traveled per day (≈1.5 billion per year).
That is the most highway travel volume of any county in New Hampshire.
The most highway trucks of any county in New Hampshire
Highway truck concentration here runs 11% higher than the state average, at 9.6%. The highway traffic mix is typical for New Hampshire: neither freight- nor commuter-dominated.
78% of counties in New Hampshire see a lower highway truck share than Rockingham's 9.6%. By raw volume, Rockingham carries the highest number of highway trucks in New Hampshire - roughly 2,151 trucks per day.

Non-highway Traffic in Rockingham County, New Hampshire
| Traffic | vehicles per day5,410 |
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| Trucks | 4.8% |
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| Average travel time | 29.9 min |
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| Congestion ratio | 16.0% |
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| Drivers’ average age | 50.1 yrs |
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| Drivers’ average income | $122,164 |
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Travel in Rockingham County, New Hampshire splits roughly evenly, with about half of it (49% of vehicle-miles) on local roads. A typical local road sees 5,410 vehicles per day.
Local roads make up 81% of the monitored road miles (779 miles in 27,490 segments) but carry less than their share of travel: 3,885,808 vehicle-miles traveled per day (≈1.4 billion per year). The truck share on non-highway roads is 4.8%.
The highest driver income of any county in New Hampshire
The concentration of trucks on non-highway roads is 51% lower than on highways.
At 16.0%, the non-highway congestion ratio matches the state level closely.
Rockingham also has the highest average driver income in New Hampshire among trip origins - $120,147. Rockingham's median driver age is lower than 56% of counties in New Hampshire.