This page delivers traffic analytics for Snohomish County, Washington. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Snohomish County, Washington among 1,420 road miles divided in 54,175 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 138 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.
8,214
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
5.7%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
32.2 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.
21.0%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
43.9 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$115,076
Our data indicates an estimated average traffic volume of 8,214 vehicles per day in Snohomish County, Washington that results in 15,764,198 vehicle-miles traveled per day (≈5.8 billion per year). The traffic stream is comprised of an average of 1 truck for every 17 vehicles. Typical time spent behind the wheel per trip is 32.2 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Washington state averages: Snohomish sees 12% higher average daily traffic volume than the state average (8,214 vehicles per day against 7,322), suggesting more demand on each road - a critical factor for logistics and site planning. Network-wide, Snohomish accounts for about 10% of Washington's statewide total, at 15,764,198 vehicle-miles traveled per day (≈5.8 billion per year). The average trip takes 32.2 minutes, 3% lower than the state level. Congestion runs 6% higher than the state level, at a ratio of 21.0% - more pronounced congestion - crucial for traffic control improvement and logistics planning. By volume, Snohomish's 8,214 vehicles per day outpaces 95% of counties in Washington. Its average travel time of 32.2 minutes is longer than 26% 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.
28,467
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
7.2%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
39.9 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.
50.5%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
43.8 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$110,697
A significant volume of traffic in Snohomish County, Washington utilizes the highway network. The average highway carries 28,467 vehicles per day, 266% more than the average non-highway road in the same area, which carries 7,773 vehicles per day. That average covers 186 highway road miles divided in 1,153 segments (average segment length 852 ft), together carrying 7,383,813 vehicle-miles traveled per day (≈2.7 billion per year). That puts Snohomish among the top 3 counties in Washington for highway travel volume. Trucks constitute 7.2% of highway traffic.
Analytical insight
Highway truck concentration here runs 25% lower than the state average, at 7.2% - positioning Snohomish as a primarily local traffic hub. For logistics operators, this validates the importance of local access. 8% of counties in Washington see a lower highway truck share than Snohomish's 7.2%. 88% of counties in Washington see fewer highway trucks per day than Snohomish's roughly 2,035.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
7,773
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
4.5%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
32.0 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.
20.4%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
43.9 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$118,094
The non-highway road network in Snohomish County, Washington supports a substantial volume of traffic. The average non-highway road carries 7,773 vehicles per day, 73% less than the average highway in the same area, which carries 28,467 vehicles per day. That average covers 1,234 non-highway road miles divided in 53,022 segments (average segment length 123 ft), together carrying 8,380,385 vehicle-miles traveled per day (≈3.1 billion per year). Trucks constitute 4.5% of non-highway traffic.
Analytical insight
Non-highway roads carry a truck concentration that's 37% lower than the highway network. The non-highway congestion ratio of 20.4% is 4% higher than the state level, suggesting slower local mobility than the state average. Snohomish's overall average travel time exceeds 26% of counties in Washington. Snohomish's average driver income exceeds 97% of counties in Washington. 21% of counties in Washington have a younger driver population than Snohomish.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–12:00 PM and PM peak 2:00 PM–5:00 PM, with volumes reaching approximately 88% higher than the daily average.
Weekend traffic:
Weekend volumes run about 7% below weekday levels.
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +8% versus the annual average.
Lowest month:
January is the quietest month, with volumes -9% versus the annual average.
Analytical insight
In Snohomish County, Washington, the peak hour concentrates about 8% of the day's traffic, and seasonal swing is mild at +8% in high season.
Traffic Flow Profile Comparison
Metric
Snohomish
Washington
Average
Difference
Traffic
8,214
7,322
+12.2%
Truck % (Total Traffic)
5.7%
7.1%
-19.5%
Truck % (Highway)
7.2%
9.5%
-24.8%
Avg. Travel Time
32.2 min
33.2 min
-2.9%
Frequently Asked Questions
The average daily traffic volume is calculated at 8,214 vehicles per day, providing a baseline for daily operations and site assessment.
Snohomish's average travel time of 32.2 minutes is longer than 26% of counties in Washington.
Traffic volumes are typically 8% higher during June–August. Volumes drop to their lowest levels in January, averaging 7,472 vehicles per day - a 9% decrease from the annual average.
Approximately 13% of highway traffic and 3% of non-highway traffic consists of vehicles whose trip originates outside Snohomish 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.
Trucks account for approximately 5.7% of the total traffic mix across all road types, with a significantly higher concentration of 7.2% on highways.
Weekday peaks occur between 7:00 AM and 12:00 PM in the morning and between 2:00 PM and 5:00 PM in the evening - about 88% above the daily average.
Drivers on Snohomish roads have a median age of 44 years, and the median household income of the neighborhoods trips originate from averages $115,076 - useful context for retail siting and customer profiling.
The average travel time for drivers is 32.2 minutes, offering a standard metric for commute and delivery route planning.
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)
