This page delivers traffic analytics for Washington County, Idaho. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Washington County, Idaho among 96 road miles divided in 2,102 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 240 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.
1,964
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
10.2%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
38.5 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.
7.5%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
52.5 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$60,516
Our data indicates an estimated average traffic volume of 1,964 vehicles per day in Washington County, Idaho that results in 194,399 vehicle-miles traveled per day (≈71.0 million per year). The traffic stream is comprised of an average of 1 truck for every 10 vehicles. Typical time spent behind the wheel per trip is 38.5 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Idaho state averages: At 1,964 vehicles per day, the average monitored road in Washington carries 66% less traffic than the state average of 5,734 vehicles per day - a critical factor for logistics and site planning. In total volume terms, its road network carries 194,399 vehicle-miles traveled per day (≈71.0 million per year), about 0.4% of Idaho's statewide total. The average trip takes 38.5 minutes, 14% higher than the state level. The congestion ratio of 7.5% is 53% lower, pointing to smoother traffic flow than the state level - crucial for traffic control improvement and logistics planning. Washington carries more traffic than 19% of counties in Idaho. 81% of counties in Idaho have a shorter average travel time than Washington's 38.5 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.
4,332
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
10.6%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
42.6 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.
11.7%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
52.4 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$61,252
A significant volume of traffic in Washington County, Idaho utilizes the highway network. The average highway carries 4,332 vehicles per day, 403% more than the average non-highway road in the same area, which carries 861 vehicles per day. That average covers 45 highway road miles divided in 668 segments (average segment length 357 ft), together carrying 167,411 vehicle-miles traveled per day (≈61.1 million per year). Trucks constitute 10.6% of highway traffic.
Analytical insight
At 10.6%, highway truck share is 25% lower than the state average, marking Washington as a primarily local traffic hub - underscoring the importance of local access for logistics operators. Washington's highway truck share (10.6%) is higher than 44% of counties in Idaho. Washington's highway truck count is higher than 24% of counties in Idaho, at roughly 459 trucks per day.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
861
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
8.2%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
36.5 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.
5.6%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
52.9 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$59,000
The non-highway road network in Washington County, Idaho supports a substantial volume of traffic. The average non-highway road carries 861 vehicles per day, 80% less than the average highway in the same area, which carries 4,332 vehicles per day. That average covers 50 non-highway road miles divided in 1,434 segments (average segment length 185 ft), together carrying 26,988 vehicle-miles traveled per day (≈9.9 million per year). Trucks constitute 8.2% of non-highway traffic.
Analytical insight
Compared to highways, non-highway routes see 23% fewer trucks by share. At 66% lower than the state level, the non-highway congestion ratio of 5.6% signals easier movement on local roads. 81% of counties in Idaho see shorter overall travel times than Washington. Trip origins here have higher average income than 19% of counties in Idaho. 74% of counties in Idaho have a younger driver population than Washington.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 11:00 AM–12:00 PM and PM peak 3:00 PM–6:00 PM, with volumes reaching approximately 85% higher than the daily average.
Weekend traffic:
Weekend volumes run about 11% below weekday levels.
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 -22% versus the annual average.
Analytical insight
In Washington County, Idaho, the peak hour concentrates about 8% of the day's traffic, and seasonal swing is pronounced at +16% in high season.
Traffic Flow Profile Comparison
Metric
Washington
Idaho
Average
Difference
Traffic
1,964
5,734
-65.7%
Truck % (Total Traffic)
10.2%
9.7%
+6.1%
Truck % (Highway)
10.6%
14.1%
-24.8%
Avg. Travel Time
38.5 min
33.8 min
+13.7%
Frequently Asked Questions
The average daily traffic volume is calculated at 1,964 vehicles per day, providing a baseline for daily operations and site assessment.
Washington carries more highway trucks by raw volume than 24% of counties in Idaho, at roughly 459 per day.
Traffic volumes are typically 16% higher during June–August. Volumes drop to their lowest levels in January, averaging 1,529 vehicles per day - a 22% decrease from the annual average.
Drivers on Washington roads have a median age of 52 years, and the median household income of the neighborhoods trips originate from averages $60,516 - useful context for retail siting and customer profiling.
Trucks account for approximately 10.2% of the total traffic mix across all road types, with a significantly higher concentration of 10.6% on highways.
The average travel time for drivers is 38.5 minutes, offering a standard metric for commute and delivery route planning.
Weekday peaks occur between 11:00 AM and 12:00 PM in the morning and between 3:00 PM and 6:00 PM in the evening - about 85% above the daily average.
Approximately 20% of highway traffic and 1% of non-highway traffic consists of vehicles whose trip originates outside Washington County, Idaho. 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)
