This page delivers traffic analytics for Jefferson County, Washington. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Jefferson County, Washington among 285 road miles divided in 3,784 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 397 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.
3,134
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
8.1%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
38.8 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.
11.7%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
61.0 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$69,863
Our data indicates an estimated average traffic volume of 3,134 vehicles per day in Jefferson County, Washington that results in 866,500 vehicle-miles traveled per day (≈316 million per year). The traffic stream is comprised of an average of 1 truck for every 12 vehicles. Typical time spent behind the wheel per trip is 38.8 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Washington state averages: At 3,134 vehicles per day, the average monitored road in Jefferson carries 57% less traffic than the state average of 7,322 vehicles per day - a critical factor for logistics and site planning. In total volume terms, its road network carries 866,500 vehicle-miles traveled per day (≈316 million per year), about 0.6% of Washington's statewide total. At 38.8 minutes, the average travel time is 17% higher than the state level. Congestion runs 41% lower than the state level, at a ratio of 11.7% - smoother traffic flow - crucial for traffic control improvement and logistics planning. Jefferson carries more traffic than 34% of counties in Washington. On travel time, Jefferson runs longer than 84% of counties in Washington.
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.
5,383
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
9.6%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
53.7 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.
12.7%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
60.4 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$68,907
A significant volume of traffic in Jefferson County, Washington utilizes the highway network. The average highway carries 5,383 vehicles per day, 104% more than the average non-highway road in the same area, which carries 2,638 vehicles per day. That average covers 100 highway road miles divided in 684 segments (average segment length 771 ft), together carrying 478,152 vehicle-miles traveled per day (≈175 million per year). Trucks constitute 9.6% of highway traffic.
Analytical insight
Highway truck concentration here (9.6%) closely tracks the state average for similar road classifications. By truck concentration, highways here outrank 41% of counties in Washington. By raw truck volume, Jefferson carries more highway trucks than 19% of counties in Washington.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
2,638
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
6.4%
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.
11.5%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
61.4 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$70,424
The non-highway road network in Jefferson County, Washington supports a substantial volume of traffic. The average non-highway road carries 2,638 vehicles per day, 51% less than the average highway in the same area, which carries 5,383 vehicles per day. That average covers 185 non-highway road miles divided in 3,100 segments (average segment length 315 ft), together carrying 388,348 vehicle-miles traveled per day (≈142 million per year). Trucks constitute 6.4% of non-highway traffic.
Analytical insight
Non-highway roads carry a truck concentration that's 34% lower than the highway network. At 41% lower than the state level, the non-highway congestion ratio of 11.5% signals easier movement on local roads. Jefferson's overall average travel time exceeds 84% of counties in Washington. 26% of counties in Washington see lower average driver income among trip origins than Jefferson. At 61 years, Jefferson's median driver age is the highest in Washington.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and PM peak 1:00 PM–5:00 PM, with volumes reaching approximately 108% higher than the daily average.
Weekend traffic:
Weekend volumes run about 1% above weekday levels.
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +21% versus the annual average.
Lowest month:
January is the quietest month, with volumes -20% versus the annual average.
Analytical insight
In Jefferson County, Washington, the peak hour concentrates about 9% of the day's traffic, and seasonal swing is pronounced at +21% in high season.
Traffic Flow Profile Comparison
Metric
Jefferson
Washington
Average
Difference
Traffic
3,134
7,322
-57.2%
Truck % (Total Traffic)
8.1%
7.1%
+14.3%
Truck % (Highway)
9.6%
9.5%
+0.7%
Avg. Travel Time
38.8 min
33.2 min
+17.0%
Frequently Asked Questions
The average daily traffic volume is calculated at 3,134 vehicles per day, providing a baseline for daily operations and site assessment.
Yes - at a median of 61 years, Jefferson has the highest driver age of any county in Washington.
Weekday peaks occur between 10:00 AM and 12:00 PM in the morning and between 1:00 PM and 5:00 PM in the evening - about 108% above the daily average.
Traffic volumes are typically 21% higher during June–August. Volumes drop to their lowest levels in January, averaging 2,511 vehicles per day - a 20% decrease from the annual average.
Drivers on Jefferson roads have a median age of 61 years, and the median household income of the neighborhoods trips originate from averages $69,863 - useful context for retail siting and customer profiling.
The average travel time for drivers is 38.8 minutes, offering a standard metric for commute and delivery route planning.
Trucks account for approximately 8.1% of the total traffic mix across all road types, with a significantly higher concentration of 9.6% on highways.
Approximately 54% of highway traffic and 21% of non-highway traffic consists of vehicles whose trip originates outside Jefferson County, Washington. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
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)
