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Traffic heat map of New Hampshire: roads over 1,000 vehicles a day shaded from blue (light) to red (heavy traffic), busiest on I 93 and I 293

New Hampshire Traffic Counts

Our New Hampshire traffic data covers 119,587 road segments over 5,383 road miles, with an average segment of just 238 ft. Its busiest road, I 93 in Hillsborough, carries 95,572 vehicles a day, 16.9 times the average road. Whether you are evaluating a new retail location, planning routes or assessing infrastructure, these numbers replace guesswork.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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total traffic icon

Total Traffic Volume & Performance in New Hampshire

Traffic

The average number of vehicles that travel each day over any road in the road network.

vehicles per day5,669
Trucks

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

7.0%
Average travel time

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

32.7 min
Congestion ratio

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

17.5%
Drivers’ average age

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

49.3 yrs
Drivers’ average income

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

$104,541

The average monitored road in New Hampshire carries 5,669 vehicles per day. Across its 5,383 miles of monitored roads, that adds up to 32,761,091 vehicle-miles traveled per day (≈12.0 billion per year). Trucks are a smaller part of the mix than across the US: 7.0% against 9.3%.

Traffic 19% below the national average

New Hampshire sees 19% lower average daily traffic volume than the national average (5,669 vehicles per day against 6,986), suggesting less demand on each road - a critical factor for logistics and site planning. Network-wide, New Hampshire accounts for about 0.4% of the national total of vehicle-miles. 60% of states nationwide see more traffic than New Hampshire's 5,669 vehicles per day.

At 32.7 minutes, the average travel time matches the national level closely. On travel time, New Hampshire runs shorter than 64% of states nationwide.

The congestion ratio of 17.5% runs slightly lower than the national level (7% lower).

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in New Hampshire

Trafficvehicles per day12,186
Trucks8.6%
Average travel time37.9 min
Congestion ratio31.7%
Drivers’ average age50.0 yrs
Drivers’ average income$105,130

Highways carry about half of all travel in New Hampshire, 50% of vehicle-miles. The average highway carries 12,186 vehicles per day, 147% more than the average non-highway road in the same area, which carries 4,939 vehicles per day.

Highways make up 21% of the monitored road miles (1,143 miles, 12,053 segments), so they carry more than their share: 16,417,615 vehicle-miles traveled per day (≈6.0 billion per year).

Lower highway truck share than 92% of states nationwide

At 8.6%, highway truck share is 34% lower than the national average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

New Hampshire's highway truck share (8.6%) is lower than 92% of states nationwide. By raw truck volume, New Hampshire carries fewer highway trucks than 74% of states nationwide.

non-highway traffic icon

Non-highway Traffic in New Hampshire

Trafficvehicles per day4,939
Trucks5.4%
Average travel time32.1 min
Congestion ratio16.1%
Drivers’ average age49.0 yrs
Drivers’ average income$103,725

Local roads carry about half of all travel in New Hampshire, 50% of vehicle-miles. A typical local road sees 4,939 vehicles per day.

Spread over 4,240 miles and 107,534 segments, 79% of the road network, local roads carry a lighter load per mile: 16,343,479 vehicle-miles traveled per day (≈6.0 billion per year). About 1 in 19 vehicles on non-highway roads is a truck (5.4%).

Older drivers than 96% of states nationwide

Non-highway roads carry a truck concentration that's 38% lower than the highway network.

Non-highway congestion (16.1%) runs slightly lower than the national level (12% lower).

Trip origins here have higher average income than 84% of states nationwide. 96% of states nationwide have a younger driver population than New Hampshire.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and a long afternoon plateau from 12:00 PM to 6:00 PM, with volumes reaching approximately 80% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 12% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +14% versus the annual average.
Lowest month:
January is the quietest month, with volumes -16% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In New Hampshire, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +14% in high season.

New Hampshire vs. United States Traffic Comparison

The highway truck share sets New Hampshire apart: 34% below the United States average. Its truck share is also 25% below.

MetricNew HampshireUnited States averageDifference
Traffic5,6696,986-18.8%
Truck % (Total Traffic)7.0%9.3%-25.0%
Truck % (Highway)8.6%13.1%-33.9%
Avg. Travel Time32.7 min33.3 min-1.8%

How New Hampshire compares

New Hampshire against nearby states

Nothing in this table sets New Hampshire sharply apart from the 4 states nearest to it, though it has the third busiest roads of the five. The same kind of road, just less of it: traffic per road matches the states around it while the network itself is smaller.

New Hampshire and the 4 nearest states by centroid distance, with the United States average for scale.
StateAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
New Hampshire5,6697.0%32,761,09132.7 min17.5%
Massachusetts8,1666.9%136,116,24234.4 min24.0%
Vermont4,0278.5%15,079,46132.7 min13.2%
Rhode Island7,8707.0%19,159,97535.2 min23.3%
Maine4,8368.7%32,675,55034.6 min14.6%
United States average6,9869.3%N/A33.3 min18.9%

Busiest counties in New Hampshire

New Hampshire's three busiest counties account for 62.6% of all the vehicle-miles measured in the state.

Ranked by daily vehicle-miles, across the 10 counties in New Hampshire with a published traffic page. Vehicle-miles is total travel, so this ranks by traffic MOVED rather than by how busy a typical road is.
CountyDaily vehicle-milesAverage daily trafficTruck shareRoad miles
1. Rockingham County7,966,6216,0087.3%962
2. Hillsborough7,274,7847,0836.0%888
3. Merrimack County5,263,0115,2757.6%748

Most truck-intensive counties in New Hampshire

Together, those five counties carry 38.5% of the truck vehicle-miles driven in the state.

Ranked by truck share of all traffic, across the same 10 counties, shown with the traffic volume that share is measured against.
CountyTruck shareTruck share on highwaysAverage daily trafficDaily vehicle-miles
1. Sullivan County8.2%9.7%3,695858,450
2. Coos County8.2%9.2%3,146842,467
3. Grafton County8.0%9.8%3,6752,635,474
4. Cheshire County7.6%8.9%4,9231,771,143
5. Merrimack County7.6%9.0%5,2755,263,011

Ranked by truck vehicle-miles instead of truck share, the list is different: Rockingham County, Hillsborough, Merrimack County, Grafton County and Strafford County carry 78.3% of all truck travel in New Hampshire.

Busiest roads in New Hampshire

On their busiest stretches, the three busiest roads in New Hampshire carry 75,340 vehicles a day on average, 13.3 times the typical road in the state (5,669).

I 93 in Hillsborough leads with 95,572 vehicles a day, 9,301 of them trucks (9.7%). It tops the truck ranking too, with the most trucks.

I 95 in Rockingham County carries longer journeys than most roads here, with a median trip of 53.7 minutes against 32.7 state-wide.

Drivers on I 93 in Rockingham County come from neighborhoods with an average household income of $132,428, 27% above the state average of $104,541.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 93Hillsborough · Motorway · 95,572vehicles9,301trucks · 9.7%
Road class
Motorway
Congestion ratio
52.4%
Median trip time
38.8 min
Drivers’ median age
47.7 yrs
Drivers’ average income
$115,392

I 93 carries 16.9 times the state average at its busiest, 9,301 of them trucks (9.7%, above the state-wide 7.0%).

2I 93Rockingham County · Motorway · 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 carries 11.7 times the state average on its busiest stretch, where the median trip lasts 38.9 minutes.

3I 293Hillsborough · Motorway · 64,295vehicles4,258trucks · 6.6%
Road class
Motorway
Congestion ratio
69.8%
Median trip time
33.2 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$119,319

I 293 is one of the more congested roads here: trips take 70% longer than at free-flow speed, against 17% state-wide.

4NH 101Hillsborough · Motorway · 61,835vehicles4,818trucks · 7.8%
Road class
Motorway
Congestion ratio
71.2%
Median trip time
33.4 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$116,009

Delays build on NH 101: its congestion ratio of 71% over free-flow time is well above the state's 17%.

5Everett TurnpikeHillsborough · Motorway · 61,140vehicles4,074trucks · 6.7%
Road class
Motorway
Congestion ratio
48.9%
Median trip time
34.3 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$117,259

At 10.8 times the state average, Everett Turnpike draws drivers from neighborhoods averaging $117,259 in household income.

6Blue Star TurnpikeRockingham County · Motorway · 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 32.7 for the state.

7Alan B Shepard HighwayRockingham County · Motorway · 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

A main artery: Alan B Shepard Highway's busiest stretch carries 10.4 times the state average; trucks are 8.2% of it, above the state-wide 7.0%.

8Everett TurnpikeMerrimack County · Motorway · 58,767vehicles4,707trucks · 8.0%
Road class
Motorway
Congestion ratio
36.4%
Median trip time
46.8 min
Drivers’ median age
48.3 yrs
Drivers’ average income
$107,775

Drivers on Everett Turnpike are on long journeys, a median 46.8 minutes against 32.7 state-wide: a through route more than a local street.

9Alan B Shepard Jr HighwayRockingham County · Motorway · 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

Alan B Shepard Jr Highway is a trunk route for the state, carrying 10.4 times the state average on its busiest stretch; trucks are 11.1% of it, above the state-wide 7.0%.

10I 95Rockingham County · Motorway · 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

I 95 carries 10.1 times the state average at its busiest, 5,714 of them trucks (10.0%, above the state-wide 7.0%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 93Hillsborough · Motorway · #1 by traffic95,572vehicles9,301trucks · 9.7%
2I 93Rockingham County · Motorway · #2 by traffic66,154vehicles7,314trucks · 11.1%
3Alan B Shepard Jr HighwayRockingham County · Motorway · #9 by traffic58,717vehicles6,541trucks · 11.1%
4Blue Star TurnpikeRockingham County · Motorway · #6 by traffic59,532vehicles6,529trucks · 11.0%
5I 95Rockingham County · Motorway · #10 by traffic57,092vehicles5,714trucks · 10.0%
6Alan B Shepard HighwayRockingham County · Motorway · #7 by traffic59,048vehicles4,872trucks · 8.2%
7NH 101Hillsborough · Motorway · #4 by traffic61,835vehicles4,818trucks · 7.8%
8Everett TurnpikeMerrimack County · Motorway · #8 by traffic58,767vehicles4,707trucks · 8.0%
9Spaulding TurnpikeRockingham County · Motorway · 55,148vehicles4,657trucks · 8.4%
Road class
Motorway
Congestion ratio
41.1%
Median trip time
37.6 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$107,616

Spaulding Turnpike carries 9.7 times the state average on its busiest stretch, where the median trip lasts 37.6 minutes.

10I 93Merrimack County · Motorway · 50,146vehicles4,612trucks · 9.2%
Road class
Motorway
Congestion ratio
48.0%
Median trip time
44.8 min
Drivers’ median age
47.7 yrs
Drivers’ average income
$110,538

At 8.8 times the state average, I 93 draws drivers from neighborhoods averaging $110,538 in household income.

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

New HampshireDepartment 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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States near New Hampshire

The same traffic breakdown for the states closest to New Hampshire.

Need segment-level traffic data?

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

Counties in New Hampshire

Traffic counts, truck share, congestion and driver demographics for each of the 10 counties TrafficZoom measures in New Hampshire.