
Total Traffic Volume & Performance in Belknap County, New Hampshire
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day6,403 |
|---|
Trucks The percentage of the total traffic volume composed of heavy vehicles. | 6.9% |
|---|
Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 33.9 min |
|---|
Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 20.3% |
|---|
Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 52.8 yrs |
|---|
Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $94,272 |
|---|
The average monitored road in Belknap County, New Hampshire carries 6,403 vehicles per day. Across its 315 miles of monitored roads, that adds up to 1,912,521 vehicle-miles traveled per day (≈698 million per year). About 1 in 14 vehicles is a truck, in line with New Hampshire (7.0%).
Busier roads than 78% of counties in New Hampshire
Belknap's average daily traffic volume is 13% higher than the state average - 6,403 vehicles per day against 5,669 - a factor worth weighing in site selection and logistics planning. Network-wide, Belknap accounts for about 5.8% of New Hampshire's statewide total of vehicle-miles. Belknap carries more traffic than 78% of counties in New Hampshire.
At 33.9 minutes, the average travel time matches the state level closely. On travel time, Belknap runs shorter than 56% of counties in New Hampshire.
At 16% higher than the state level, the 20.3% congestion ratio signals more pronounced congestion - crucial for traffic control improvement and logistics planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Belknap County, New Hampshire
| Traffic | vehicles per day12,166 |
|---|
| Trucks | 9.0% |
|---|
| Average travel time | 33.3 min |
|---|
| Congestion ratio | 33.8% |
|---|
| Drivers’ average age | 51.8 yrs |
|---|
| Drivers’ average income | $93,783 |
|---|
Highways carry a significant share of travel in Belknap County, New Hampshire: 43% of all vehicle-miles. The average highway carries 12,166 vehicles per day, 122% more than the average non-highway road in the same area, which carries 5,484 vehicles per day.
With 23% of the road miles (74 miles in 987 segments), highways punch above their length, carrying 829,342 vehicle-miles traveled per day (≈303 million per year).
A typical mix of freight and passenger traffic
Highway truck concentration here (9.0%) closely tracks the state average for similar road classifications. The highway traffic mix is typical for New Hampshire: neither freight- nor commuter-dominated.
By truck concentration, highways here trail 56% of counties in New Hampshire. Belknap's highway truck count is higher than 56% of counties in New Hampshire, at roughly 1,094 trucks per day.

Non-highway Traffic in Belknap County, New Hampshire
| Traffic | vehicles per day5,484 |
|---|
| Trucks | 5.3% |
|---|
| Average travel time | 34.0 min |
|---|
| Congestion ratio | 18.2% |
|---|
| Drivers’ average age | 53.4 yrs |
|---|
| Drivers’ average income | $94,573 |
|---|
Local roads carry more than half of all travel in Belknap County, New Hampshire (57% of vehicle-miles). On the average non-highway road, that comes to 5,484 vehicles per day.
Spread over 242 miles and 6,186 segments, 77% of the road network, local roads carry a lighter load per mile: 1,083,180 vehicle-miles traveled per day (≈395 million per year). The truck share on non-highway roads is 5.3%.
Older drivers than 78% of counties in New Hampshire
Non-highway roads carry a truck concentration that's 41% lower than the highway network.
Non-highway congestion (18.2%) runs slightly higher than the state level (13% higher).
Trip origins here have higher average income than 56% of counties in New Hampshire. 78% of counties in New Hampshire have a younger driver population than Belknap.