This page delivers traffic analytics for Columbia County, Washington. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Columbia County, Washington among 44 road miles divided in 357 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 650 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.
2,035
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
11.1%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
44.4 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.
7.2%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
52.7 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$77,503
Our data indicates an estimated average traffic volume of 2,035 vehicles per day in Columbia County, Washington that results in 78,697 vehicle-miles traveled per day (≈28.7 million per year). The traffic stream is comprised of an average of 1 truck for every 9 vehicles. Typical time spent behind the wheel per trip is 44.4 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Washington state averages: Columbia's average daily traffic volume is 72% lower than the state average - 2,035 vehicles per day against 7,322 - suggesting less traffic load per road, a critical factor for logistics and site planning. Network-wide, Columbia accounts for about 0.1% of Washington's statewide total, at 78,697 vehicle-miles traveled per day (≈28.7 million per year). At 44.4 minutes, the average travel time is 34% higher than the state level. Congestion runs 64% lower than the state level, at a ratio of 7.2% - smoother traffic flow - crucial for traffic control improvement and logistics planning. 18% of counties in Washington see less traffic than Columbia's 2,035 vehicles per day. 92% of counties in Washington have a shorter average travel time than Columbia's 44.4 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.
3,542
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
11.4%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
45.5 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.
10.5%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
52.2 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$76,869
A significant volume of traffic in Columbia County, Washington utilizes the highway network. The average highway carries 3,542 vehicles per day, 322% more than the average non-highway road in the same area, which carries 839 vehicles per day. That average covers 29 highway road miles divided in 158 segments (average segment length 980 ft), together carrying 72,056 vehicle-miles traveled per day (≈26.3 million per year). Trucks constitute 11.4% of highway traffic.
Analytical insight
At 11.4%, highway truck share is 20% higher than the state average, marking Columbia as a significant freight corridor - underscoring the importance of highway access for logistics operators. By truck concentration, highways here outrank 66% of counties in Washington. By raw truck volume, Columbia carries more highway trucks than 3% 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.
839
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
7.1%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
43.5 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.
4.5%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
56.0 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$79,648
The non-highway road network in Columbia County, Washington supports a substantial volume of traffic. The average non-highway road carries 839 vehicles per day, 76% less than the average highway in the same area, which carries 3,542 vehicles per day. That average covers 15 non-highway road miles divided in 199 segments (average segment length 387 ft), together carrying 6,641 vehicle-miles traveled per day (≈2.4 million per year). Trucks constitute 7.1% of non-highway traffic.
Analytical insight
Compared to highways, non-highway routes see 38% fewer trucks by share. The non-highway congestion ratio of 4.5% is 77% lower than the state level, suggesting more efficient local mobility than the state average. 92% of counties in Washington see shorter overall travel times than Columbia. Columbia's average driver income exceeds 47% of counties in Washington. Columbia's median driver age is higher than 74% of counties 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 81% 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 +16% versus the annual average.
Lowest month:
December is the quietest month, with volumes -25% versus the annual average.
Analytical insight
In Columbia County, Washington, 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
Columbia
Washington
Average
Difference
Traffic
2,035
7,322
-72.2%
Truck % (Total Traffic)
11.1%
7.1%
+55.3%
Truck % (Highway)
11.4%
9.5%
+20.2%
Avg. Travel Time
44.4 min
33.2 min
+33.9%
Frequently Asked Questions
The average daily traffic volume is calculated at 2,035 vehicles per day, providing a baseline for daily operations and site assessment.
Columbia carries more traffic than 18% of counties in Washington, averaging 2,035 vehicles per day.
Traffic volumes are typically 16% higher during June–August. Volumes drop to their lowest levels in December, averaging 1,526 vehicles per day - a 25% decrease from the annual average.
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 81% above the daily average.
Trucks account for approximately 11.1% of the total traffic mix across all road types, with a significantly higher concentration of 11.4% on highways.
The average travel time for drivers is 44.4 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)
