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Traffic heat map of Rockingham County, New Hampshire: 962 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 93 and Blue Star Turnpike

Rockingham County, New Hampshire Traffic Counts

How busy are the roads of Rockingham County, New Hampshire? We measure 962 road miles, divided into 29,208 segments, with multi-sourced, cross-verified mobile and sensor data. It moves more highway traffic than any other county in New Hampshire. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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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
Trucks

The percentage of the total traffic volume composed of heavy vehicles.

7.3%
Average travel time

The average time of travel averaged among all vehicles traveling on the road network.

30.5 min
Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.

16.9%
Drivers’ average age

Average age of residents in the geographic areas where the vehicle trips originated.

49.8 yrs
Drivers’ average income

Average income of residents in the geographic areas where the vehicle trips originated.

$120,147

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

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Highway Traffic in Rockingham County, New Hampshire

Trafficvehicles per day15,568
Trucks9.6%
Average travel time41.1 min
Congestion ratio31.3%
Drivers’ average age49.1 yrs
Drivers’ average income$116,288

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 icon

Non-highway Traffic in Rockingham County, New Hampshire

Trafficvehicles per day5,410
Trucks4.8%
Average travel time29.9 min
Congestion ratio16.0%
Drivers’ average age50.1 yrs
Drivers’ average income$122,164

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.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and PM peak 4:00 PM–6:00 PM, with volumes reaching approximately 83% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 9% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +16% versus the annual average.
Lowest month:
January is the quietest month, with volumes -18% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Rockingham County, New Hampshire, the peak hour concentrates about 8% of the day's traffic, and there is a strong seasonal swing of +16% in high season.

Rockingham County vs. New Hampshire Traffic Comparison

Rockingham County stays close to the New Hampshire average; the largest gap is its highway truck share, 11% above.

MetricRockingham CountyNew Hampshire averageDifference
Traffic6,0085,669+6.0%
Truck % (Total Traffic)7.3%7.0%+3.6%
Truck % (Highway)9.6%8.6%+11.5%
Avg. Travel Time30.5 min32.7 min-6.7%

How Rockingham County compares

Rockingham County against nearby counties

Nothing in this table sets Rockingham County sharply apart from the 4 areas nearest to it, though it has the fourth busiest roads of the five.

Rockingham County and the 4 nearest county-level areas by centroid distance, with the New Hampshire average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Rockingham County6,0087.3%7,966,62130.5 min16.9%
Strafford County, New Hampshire6,7526.2%2,815,77235.6 min21.2%
Essex County, Massachusetts9,3936.4%15,203,20532.9 min26.8%
Hillsborough, New Hampshire7,0836.0%7,274,78432.5 min21.6%
Merrimack County, New Hampshire5,2757.6%5,263,01133.3 min16.9%
New Hampshire average5,6697.0%N/A32.7 min17.5%

Rockingham County ranked within New Hampshire

Rockingham County records the state's highest highway travel volume, highway truck volume and average driver income - 3 first places in one county.

Rockingham County ranked among 10 county-level areas in New Hampshire (1 = highest).
MeasureRockingham CountyNew Hampshire rank
Traffic volume (AADT)6,008#4 of 10
Highway vehicle-miles per day4,080,814#1 of 10
Truck share on highways9.6%#3 of 10
Highway trucks per day1,499#1 of 10
Average travel time30.5 min#9 of 10
Average driver income$120,147#1 of 10
Average driver age49.8 yrs#6 of 10

The two ends of this table sit far apart: #1 of 10 on highway travel volume, against #9 of 10 on average travel time.

Busiest roads in Rockingham County, New Hampshire

The three busiest roads in Rockingham County average 61,578 vehicles a day, 10.3 times the county average of 6,008 across all its monitored roads.

I 93 is the busiest road, at 66,154 vehicles a day, 7,314 of them trucks (11.1%). It also carries the most trucks.

I 95 carries longer journeys than most roads here, with a median trip of 53.7 minutes against 30.5 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 93Motorway · 66,154vehicles7,314trucks · 11.1%
Road class
Motorway
Median trip time
38.9 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$132,428

I 93 is a trunk route for the county, carrying 11.0 times the county average on its busiest stretch; trucks are 11.1% of it, above the county-wide 7.3%.

2Blue Star TurnpikeMotorway · 59,532vehicles6,529trucks · 11.0%
Road class
Motorway
Congestion ratio
26.9%
Median trip time
53.6 min
Drivers’ median age
51.3 yrs
Drivers’ average income
$114,412

Blue Star Turnpike carries through traffic: the median trip using it lasts 53.6 minutes, against 30.5 for the county.

3Alan B Shepard HighwayMotorway · 59,048vehicles4,872trucks · 8.2%
Road class
Motorway
Congestion ratio
33.8%
Median trip time
41.4 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$115,209

Alan B Shepard Highway is one of the more congested roads here: trips take 34% longer than at free-flow speed, against 17% county-wide.

4Alan B Shepard Jr HighwayMotorway · 58,717vehicles6,541trucks · 11.1%
Road class
Motorway
Congestion ratio
28.5%
Median trip time
42.3 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$119,901

Drivers on Alan B Shepard Jr Highway are on long journeys, a median 42.3 minutes against 30.5 county-wide: a through route more than a local street.

5I 95Motorway · 57,092vehicles5,714trucks · 10.0%
Road class
Motorway
Congestion ratio
38.1%
Median trip time
53.7 min
Drivers’ median age
53.4 yrs
Drivers’ average income
$109,002

Delays build on I 95: its congestion ratio of 38% over free-flow time is well above the county's 17%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 93Motorway · #1 by traffic66,154vehicles7,314trucks · 11.1%
2Alan B Shepard Jr HighwayMotorway · #4 by traffic58,717vehicles6,541trucks · 11.1%
3Blue Star TurnpikeMotorway · #2 by traffic59,532vehicles6,529trucks · 11.0%
4I 95Motorway · #5 by traffic57,092vehicles5,714trucks · 10.0%
5Alan B Shepard HighwayMotorway · #3 by traffic59,048vehicles4,872trucks · 8.2%
How to read these road counts
  • The first number is AADT, annual average daily traffic: the vehicles passing a point on an average day, both directions combined and trucks included. On a divided highway both carriageways are added together.
  • Traffic changes along a road, with more near interchanges and towns and less in open country. Every figure for a road describes its busiest stretch in the county, so the two rankings show the same numbers for the same road.
  • The second number is the trucks on that stretch, a part of its AADT. The bar splits the AADT into cars and light vehicles (blue) and trucks (amber).
  • See segment-level AADT for any road on TrafficZoom.

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)

Road sensor networks and traffic counters

Historical traffic pattern databases

Public traffic count programs published by the

RockinghamDepartment of Transportation

Demographic Baseline for O-D Modeling

U.S. Census Bureau
All metrics represent estimates based on statistical modeling and are intended for strategic planning purposes.
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Data current as of:
Q3 2026

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Counties near Rockingham County

The same traffic breakdown for the areas closest to Rockingham County, New Hampshire.

Need segment-level traffic data?

Identify traffic patterns street by street and analyze the exact corridors that matter to your project.