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Traffic heat map of Sussex County, New Jersey: 510 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Christopher Columbus Highway

Sussex County, New Jersey Traffic Counts

Traffic analytics for Sussex County, New Jersey, calculated from real-world mobile and sensor networks on 10,681 road segments (510 road miles, about 252 ft each). Its busiest road, Christopher Columbus Highway, carries 51,054 vehicles a day, 9.5 times the average road. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
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 Sussex County, New Jersey

Traffic

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

vehicles per day5,400
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.

33.3 min
Congestion ratio

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

18.9%
Drivers’ average age

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

50.6 yrs
Drivers’ average income

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

$124,181

A typical monitored road in Sussex County, New Jersey sees 5,400 vehicles per day, while its 510 miles of monitored roads together handle 2,542,654 vehicle-miles traveled per day (≈928 million per year). Trucks are 7.0% of traffic, close to the 7.9% across New Jersey.

Quieter roads than 80% of counties in New Jersey

Sussex sees 39% lower average daily traffic volume than the state average (5,400 vehicles per day against 8,886), suggesting less demand on each road - lighter roads for freight, but less passing trade for roadside retail. Across the whole network, that travel is about 1.7% of New Jersey's statewide total. Sussex carries less traffic than 80% of counties in New Jersey.

The average trip takes 33.3 minutes, on par with the state level. On travel time, Sussex runs longer than 50% of counties in New Jersey.

The congestion ratio of 18.9% is 30% lower, pointing to smoother traffic flow than the state level - travel times are easy to plan around for scheduled deliveries.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Sussex County, New Jersey

Trafficvehicles per day16,709
Trucks12.3%
Average travel time52.3 min
Congestion ratio32.7%
Drivers’ average age49.6 yrs
Drivers’ average income$127,881

At 18% of vehicle-miles, highways carry a smaller share of the traffic in Sussex County, New Jersey than local roads. The average highway carries 16,709 vehicles per day, 213% more than the average non-highway road in the same area, which carries 5,334 vehicles per day.

Yet highways are only 5% of the road network, 26 miles in 62 segments, so each mile of them is 3.6 times as busy as the average road mile.

Higher highway truck share than 70% of counties in New Jersey

The concentration of trucks on highways (12.3%) is 20% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.

By truck concentration, highways here outrank 70% of counties in New Jersey. Sussex's highway truck count is lower than 70% of counties in New Jersey, at roughly 2,049 trucks per day.

non-highway traffic icon

Non-highway Traffic in Sussex County, New Jersey

Trafficvehicles per day5,334
Trucks5.9%
Average travel time33.2 min
Congestion ratio18.8%
Drivers’ average age50.7 yrs
Drivers’ average income$123,681

Local roads carry the vast majority of travel in Sussex County, New Jersey, 82% of all vehicle-miles. The average non-highway road carries 5,334 vehicles per day.

Local roads also make up about 95% of the monitored road miles: 484 miles in 10,619 segments, together carrying 2,079,113 vehicle-miles traveled per day (≈759 million per year). Trucks make up 5.9% of non-highway traffic, about 1 in 17 vehicles.

Older drivers than 95% of counties in New Jersey

The concentration of trucks on non-highway roads is 52% lower than on highways.

At 23% lower than the state level, the non-highway congestion ratio of 18.8% signals easier movement on local roads.

Sussex's average driver income is higher than 60% of counties in New Jersey. 95% of counties in New Jersey have a younger driver population than Sussex.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and PM peak 4:00 PM–6:00 PM, with volumes reaching approximately 78% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 10% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +7% versus the annual average.
Lowest month:
January is the quietest month, with volumes -11% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Sussex County, New Jersey, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +7% in high season.

Sussex County vs. New Jersey Traffic Comparison

Of the four measures, average daily traffic per road differs most: Sussex County runs 39% below the New Jersey average. Its highway truck share, by contrast, is 20% above.

MetricSussex CountyNew Jersey averageDifference
Traffic5,4008,886-39.2%
Truck % (Total Traffic)7.0%7.9%-11.3%
Truck % (Highway)12.3%10.2%+20.1%
Avg. Travel Time33.3 min33.4 min-0.2%

How Sussex County compares

Sussex County against nearby counties

Against the 4 nearest areas, Sussex County moves 47.8% of the total daily travel; it has the third busiest roads of the five. Smaller and quieter on both counts: a shorter network than the areas around it, carrying lighter traffic across it.

Sussex County and the 4 nearest county-level areas by centroid distance, with the New Jersey average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Sussex County5,4007.0%2,542,65433.3 min18.9%
Morris County, New Jersey8,6797.6%10,536,60432.1 min22.8%
Warren County, New Jersey4,38512.7%2,616,02034.2 min15.1%
Pike County, Pennsylvania3,43812.9%1,210,17430.2 min13.5%
Passaic County, New Jersey11,8475.5%6,894,37532.8 min35.4%
New Jersey average8,8867.9%N/A33.4 min27.0%

Sussex County ranked within New Jersey

Sussex County sits in New Jersey's top three on average driver age.

Sussex County ranked among 21 county-level areas in New Jersey (1 = highest).
MeasureSussex CountyNew Jersey rank
Traffic volume (AADT)5,400#17 of 21
Highway vehicle-miles per day463,541#21 of 21
Truck share on highways12.3%#7 of 21
Highway trucks per day2,049#15 of 21
Average travel time33.3 min#11 of 21
Average driver income$124,181#9 of 21
Average driver age50.6 yrs#2 of 21

The two ends of this table sit far apart: #2 of 21 on average driver age, against #21 of 21 on highway travel volume.

Busiest roads in Sussex County, New Jersey

The three busiest roads in Sussex County average 35,183 vehicles a day, 6.5 times the county average of 5,400 across all its monitored roads.

Christopher Columbus Highway leads with 51,054 vehicles a day, 8,057 of them trucks (15.8%). No other road comes close: NJ 15, in second place, carries 27,787. It tops the truck ranking too, with the most trucks.

Trucks make up 15.8% of traffic on Christopher Columbus Highway, against 7.0% across all roads in the county.

Trips using Christopher Columbus Highway are long: a median of 56.3 minutes against 33.3 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Christopher Columbus HighwayMotorway · 51,054vehicles8,057trucks · 15.8%
Road class
Motorway
Congestion ratio
41.5%
Median trip time
56.3 min
Drivers’ median age
49.2 yrs
Drivers’ average income
$115,095

Christopher Columbus Highway carries 9.5 times the county average at its busiest, 8,057 of them trucks (15.8%, above the county-wide 7.0%).

2NJ 15Motorway · 27,787vehicles2,380trucks · 8.6%
Road class
Motorway
Congestion ratio
37.7%
Median trip time
40.5 min
Drivers’ median age
50.7 yrs
Drivers’ average income
$135,886

NJ 15 carries 5.1 times the county average on its busiest stretch, where the median trip lasts 40.5 minutes.

3NJ 15 / NJ 94Primary road · 26,708vehicles2,277trucks · 8.5%
Road class
Primary road
Congestion ratio
77.1%
Median trip time
39.2 min
Drivers’ median age
51.1 yrs
Drivers’ average income
$117,135

Delays build on NJ 15 / NJ 94: its congestion ratio of 77% over free-flow time is well above the county's 19%.

4US 206Primary road · 21,970vehicles877trucks · 4.0%
Road class
Primary road
Congestion ratio
38.8%
Median trip time
31.6 min
Drivers’ median age
48.9 yrs
Drivers’ average income
$130,986

On its busiest stretch, US 206 carries 4.1 times the county average; trucks are 4.0% of it, below the county-wide 7.0%.

5Route 206Primary road · 19,910vehicles855trucks · 4.3%
Road class
Primary road
Congestion ratio
57.9%
Median trip time
31.8 min
Drivers’ median age
49.4 yrs
Drivers’ average income
$130,493

Route 206 peaks at 19,910 vehicles a day, 3.7 times the county average; trucks are 4.3% of it, below the county-wide 7.0%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Christopher Columbus HighwayMotorway · #1 by traffic51,054vehicles8,057trucks · 15.8%
2NJ 15Motorway · #2 by traffic27,787vehicles2,380trucks · 8.6%
3NJ 15 / NJ 94Primary road · #3 by traffic26,708vehicles2,277trucks · 8.5%
4Lafayette RoadPrimary road · 16,567vehicles1,182trucks · 7.1%
Road class
Primary road
Congestion ratio
43.9%
Median trip time
39.9 min
Drivers’ median age
51.0 yrs
Drivers’ average income
$114,601

Lafayette Road carries 3.1 times the county average at its busiest, 1,182 of them trucks (7.1%, in line with the county-wide 7.0%).

5NJ 23 / County Road 517Primary road · 18,591vehicles1,154trucks · 6.2%
Road class
Primary road
Congestion ratio
58.3%
Median trip time
33.6 min
Drivers’ median age
51.0 yrs
Drivers’ average income
$113,208

Travel on NJ 23 / County Road 517's busiest stretch runs 58% over free-flow time, against 19% across the county, so expect slower peak hours.

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

SussexDepartment 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 Sussex County

The same traffic breakdown for the areas closest to Sussex County, New Jersey.

Need segment-level traffic data?

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