This page delivers traffic analytics for Sussex County, Delaware. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Sussex County, Delaware among 1,797 road miles divided in 18,677 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 508 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.
4,700
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
6.7%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
31.6 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.
15.1%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
55.8 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$83,549
Our data indicates an estimated average traffic volume of 4,700 vehicles per day in Sussex County, Delaware that results in 6,655,865 vehicle-miles traveled per day (≈2.4 billion 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 31.6 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Delaware state averages: At 4,700 vehicles per day, the average monitored road in Sussex carries 23% less traffic than the state average of 6,126 vehicles per day - a critical factor for logistics and site planning. Across the whole network that adds up to 6,655,865 vehicle-miles traveled per day (≈2.4 billion per year), roughly 29% of Delaware's statewide total. Journey times run 6% lower than the state level, at 31.6 minutes on average. At 13% lower than the state level, the 15.1% congestion ratio signals smoother traffic flow - crucial for traffic control improvement and logistics planning. Sussex carries more traffic than 50% of counties in Delaware. Sussex additionally records the lowest average travel time of any county in Delaware - 31.6 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.
12,527
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
8.0%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
37.8 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.
31.8%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
55.4 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$85,173
A significant volume of traffic in Sussex County, Delaware utilizes the highway network. The average highway carries 12,527 vehicles per day, 273% more than the average non-highway road in the same area, which carries 3,361 vehicles per day. That average covers 261 highway road miles divided in 2,728 segments (average segment length 505 ft), together carrying 3,135,566 vehicle-miles traveled per day (≈1.1 billion per year). By highway travel volume, Sussex outranks 50% of counties in Delaware. Trucks constitute 8.0% of highway traffic.
Analytical insight
The concentration of trucks on highways (8.0%) is 19% lower than the state average for similar road classifications. This indicates Sussex serves as a primarily local traffic hub. For logistics operators, this validates the importance of local access. Sussex also posts the lowest highway truck share in Delaware - 8.0%. By raw volume, Sussex carries the lowest number of highway trucks in Delaware - roughly 963 trucks per day.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
3,361
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
5.5%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
30.6 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.
12.2%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
57.3 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$82,258
The non-highway road network in Sussex County, Delaware supports a substantial volume of traffic. The average non-highway road carries 3,361 vehicles per day, 73% less than the average highway in the same area, which carries 12,527 vehicles per day. That average covers 1,536 non-highway road miles divided in 15,949 segments (average segment length 509 ft), together carrying 3,520,299 vehicle-miles traveled per day (≈1.3 billion per year). Trucks constitute 5.5% of non-highway traffic.
Analytical insight
The concentration of trucks on non-highway roads is 31% lower than on highways. Non-highway congestion (12.2%) runs 17% lower than the state average, pointing to smoother local traffic flow. Overall, Sussex has the lowest average travel time in Delaware, at 31.6 minutes. Trip origins here have higher average income than 50% of counties in Delaware. At 56 years, Sussex's median driver age is the highest in Delaware.
Time-of-Day & Seasonal Patterns
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 69% higher than the daily average.
Weekend traffic:
Weekend volumes run about 2% above weekday levels.
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +50% versus the annual average.
Lowest month:
January is the quietest month, with volumes -29% versus the annual average.
Analytical insight
In Sussex County, Delaware, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is pronounced at +50% in high season.
Traffic Flow Profile Comparison
Metric
Sussex
Delaware
Average
Difference
Traffic
4,700
6,126
-23.3%
Truck % (Total Traffic)
6.7%
7.8%
-13.7%
Truck % (Highway)
8.0%
9.9%
-18.9%
Avg. Travel Time
31.6 min
33.6 min
-5.8%
Frequently Asked Questions
The average daily traffic volume is calculated at 4,700 vehicles per day, providing a baseline for daily operations and site assessment.
Yes - Sussex has the lowest highway truck share of any county in Delaware, at 8.0%.
Weekday peaks occur between 10:00 AM and 12:00 PM in the morning and between 4:00 PM and 6:00 PM in the evening - about 69% above the daily average.
Approximately 16% of highway traffic and 8% of non-highway traffic consists of vehicles whose trip originates outside Sussex County, Delaware. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
The average travel time for drivers is 31.6 minutes, offering a standard metric for commute and delivery route planning.
Drivers on Sussex roads have a median age of 56 years, and the median household income of the neighborhoods trips originate from averages $83,549 - useful context for retail siting and customer profiling.
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)
