This page delivers traffic analytics for Carroll County, New Hampshire. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Carroll County, New Hampshire among 365 road miles divided in 8,414 segments. Our metrics go beyond simple volume counts to provide actionable insights on traffic intensity, congestion, commercial vehicle flow, and network performance with highest possible granularity (average segment length is 229 ft). Whether you are evaluating a new retail location, planning logistics routes, or assessing infrastructure needs, this data helps you move from assumptions to certainty.
Data sourced from TrafficZoom's proprietary analytics platform.
The average number of vehicles that travel each day over any road in the road network.
4,239
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
6.5%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
34.1 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
13.3%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
57.1 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$81,465
Our data indicates an estimated average traffic volume of 4,239 vehicles per day in Carroll County, New Hampshire that results in 1,420,848 vehicle-miles traveled per day (≈519 million per year). The traffic stream is comprised of an average of 1 truck for every 15 vehicles. Typical time spent behind the wheel per trip is 34.1 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the New Hampshire state averages: At 4,239 vehicles per day, the average monitored road in Carroll carries 25% less traffic than the state average of 5,669 vehicles per day - a critical factor for logistics and site planning. In total volume terms, its road network carries 1,420,848 vehicle-miles traveled per day (≈519 million per year), about 4.3% of New Hampshire's statewide total. The average trip takes 34.1 minutes, 4% higher than the state level. The congestion ratio of 13.3% is 24% lower, pointing to smoother traffic flow than the state level - crucial for traffic control improvement and logistics planning. By volume, Carroll's 4,239 vehicles per day outpaces 33% of counties in New Hampshire. 56% of counties in New Hampshire have a shorter average travel time than Carroll's 34.1 minutes.
Highway vs. Non-Highway Traffic Analysis
Highway Traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
10,865
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
7.5%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
35.5 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
29.5%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
56.8 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$77,934
A significant volume of traffic in Carroll County, New Hampshire utilizes the highway network. The average highway carries 10,865 vehicles per day, 276% more than the average non-highway road in the same area, which carries 2,889 vehicles per day. That average covers 65 highway road miles divided in 1,424 segments (average segment length 242 ft), together carrying 625,671 vehicle-miles traveled per day (≈228 million per year). Trucks constitute 7.5% of highway traffic.
Analytical insight
The concentration of trucks on highways (7.5%) is 13% lower than the state average for similar road classifications. This indicates Carroll serves as a primarily local traffic hub. For logistics operators, this validates the importance of local access. By truck concentration, highways here outrank 22% of counties in New Hampshire. 22% of counties in New Hampshire see fewer highway trucks per day than Carroll's roughly 814.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
2,889
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
5.8%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
33.8 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
10.0%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
57.5 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$83,986
The non-highway road network in Carroll County, New Hampshire supports a substantial volume of traffic. The average non-highway road carries 2,889 vehicles per day, 73% less than the average highway in the same area, which carries 10,865 vehicles per day. That average covers 300 non-highway road miles divided in 6,990 segments (average segment length 227 ft), together carrying 795,177 vehicle-miles traveled per day (≈290 million per year). Trucks constitute 5.8% of non-highway traffic.
Analytical insight
The concentration of trucks on non-highway roads is 23% lower than on highways. The non-highway congestion ratio of 10.0% is 38% lower than the state level, suggesting more efficient local mobility than the state average. 56% of counties in New Hampshire see shorter overall travel times than Carroll. Trip origins here have higher average income than 22% of counties in New Hampshire. Carroll has the highest median driver age in New Hampshire - 57 years.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and PM peak 12:00 PM–6:00 PM, with volumes reaching approximately 88% higher than the daily average.
Weekend traffic:
Weekend volumes run about 23% above weekday levels.
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +28% versus the annual average.
Lowest month:
November is the quietest month, with volumes -24% versus the annual average.
Analytical insight
In Carroll County, New Hampshire, the peak hour concentrates about 8% of the day's traffic, and seasonal swing is pronounced at +28% in high season.
Traffic Flow Profile Comparison
Metric
Carroll
New Hampshire
Average
Difference
Traffic
4,239
5,669
-25.2%
Truck % (Total Traffic)
6.5%
7.0%
-7.0%
Truck % (Highway)
7.5%
8.6%
-13.3%
Avg. Travel Time
34.1 min
32.7 min
+4.3%
How Carroll County compares
Carroll County against nearby areas
Set against the average of the 4 areas nearest to it, Carroll County moves 46.3% of the total daily travel and is 25.6% less congested; it has the fourth busiest roads of the five. Less traffic and more room for it - the roads here run both quieter and freer than the areas around them.
Carroll County and the 4 nearest county-level areas by centroid distance, with the New Hampshire average for scale.
Carroll County posts the highest average driver age of any county-level area in New Hampshire.
Where Carroll County sits among New Hampshire's county-level areas on each measure. Rank 1 is the highest value in the state, whether or not that is the outcome you want; the field size differs by measure because not every county carries highway data.
Measure
Carroll County
New Hampshire rank
Traffic volume (AADT)
4,239
#7 of 10
Highway vehicle-miles per day
625,671
#8 of 10
Truck share on highways
7.5%
#8 of 10
Highway trucks per day
814
#8 of 10
Average travel time
34.1 min
#5 of 10
Average driver income
$81,465
#8 of 10
Average driver age
57.1 yrs
#1 of 10
The two ends of this table sit far apart: #1 of 10 on average driver age, against #8 of 10 on highway travel volume.
Frequently Asked Questions
The average daily traffic volume is calculated at 4,239 vehicles per day, providing a baseline for daily operations and site assessment.
Yes - at a median of 57 years, Carroll has the highest driver age of any county in New Hampshire.
The average travel time for drivers is 34.1 minutes, offering a standard metric for commute and delivery route planning.
Drivers on Carroll roads have a median age of 57 years, and the median household income of the neighborhoods trips originate from averages $81,465 - useful context for retail siting and customer profiling.
Approximately 5% of highway traffic and 9% of non-highway traffic consists of vehicles whose trip originates outside Carroll County, New Hampshire.
Weekday peaks occur between 10:00 AM and 12:00 PM in the morning and between 12:00 PM and 6:00 PM in the evening - about 88% above the daily average.
Data Sources & Methodology
The data presented on this page is derived from TrafficZoom's proprietary analytics platform, which aggregates and normalizes information from multiple sources, including:
Mobile device location data (anonymized and aggregated)
