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Marion County, Oregon Traffic Counts

This page delivers traffic analytics for Marion County, Oregon. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Marion County, Oregon among 1,054 road miles divided in 29,240 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 190 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.
Data current as of:
Q3 2026
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Total Traffic Volume & Performance

Traffic

5,716

Trucks

8.4%

Average travel time

34.2 min

Congestion ratio

17.1%

Drivers’ average age

43.9 yrs

Drivers’ average income

$82,611

Our data indicates an estimated average traffic volume of 5,716 vehicles per day in Marion County, Oregon that results in 7,660,193 vehicle-miles traveled per day (≈2.8 billion 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 34.2 minutes, which already accounts for delays at signals, intersections, and congestion.

Analytical insight

When compared to the Oregon state averages: Marion sees 3% lower average daily traffic volume than the state average (5,716 vehicles per day against 5,908), suggesting less demand on each road - a critical factor for logistics and site planning. Across the whole network that adds up to 7,660,193 vehicle-miles traveled per day (≈2.8 billion per year), roughly 8.8% of Oregon's statewide total. The average trip takes 34.2 minutes, on par with the state level. Congestion runs 3% higher than the state level, at a ratio of 17.1% - more pronounced congestion - crucial for traffic control improvement and logistics planning. Marion carries more traffic than 83% of counties in Oregon. On travel time, Marion runs longer than 37% of counties in Oregon.

Highway vs. Non-Highway Traffic Analysis

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Highway Traffic

Traffic

17,072

Trucks

11.3%

Average travel time

44.4 min

Congestion ratio

31.5%

Drivers’ average age

44.2 yrs

Drivers’ average income

$82,937

A significant volume of traffic in Marion County, Oregon utilizes the highway network. The average highway carries 17,072 vehicles per day, 222% more than the average non-highway road in the same area, which carries 5,301 vehicles per day. That average covers 179 highway road miles divided in 1,031 segments (average segment length 917 ft), together carrying 4,135,165 vehicle-miles traveled per day (≈1.5 billion per year). By highway travel volume, that ranks Marion in the top 3 counties in Oregon. Trucks constitute 11.3% of highway traffic.

Analytical insight

At 11.3%, highway truck share is 6% lower than the state average, marking Marion as a primarily local traffic hub - underscoring the importance of local access for logistics operators. 50% of counties in Oregon see a lower highway truck share than Marion's 11.3%. Marion's highway truck count is higher than 97% of counties in Oregon, at roughly 1,922 trucks per day.
non-highway traffic icon

Non-highway traffic

Traffic

5,301

Trucks

5.1%

Average travel time

33.8 min

Congestion ratio

16.6%

Drivers’ average age

43.8 yrs

Drivers’ average income

$82,377

The non-highway road network in Marion County, Oregon supports a substantial volume of traffic. The average non-highway road carries 5,301 vehicles per day, 69% less than the average highway in the same area, which carries 17,072 vehicles per day. That average covers 875 non-highway road miles divided in 28,209 segments (average segment length 164 ft), together carrying 3,525,027 vehicle-miles traveled per day (≈1.3 billion per year). Trucks constitute 5.1% of non-highway traffic.

Analytical insight

Non-highway roads carry a truck concentration that's 55% lower than the highway network. The non-highway congestion ratio of 16.6% is 3% higher than the state level, suggesting slower local mobility than the state average. 37% of counties in Oregon see shorter overall travel times than Marion. Marion's average driver income exceeds 77% of counties in Oregon. 11% of counties in Oregon have a younger driver population than Marion.

Time-of-Day & Seasonal Patterns

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Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and PM peak 3:00 PM–5:00 PM, with volumes reaching approximately 86% higher than the daily average.
Weekend traffic:
Weekend volumes run about 11% below weekday levels.
seasonal traffic icon
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 -16% versus the annual average.

Analytical insight

In Marion County, Oregon, 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

Marion

Oregon
Average

Difference

Traffic

5,716

5,908

-3.3%

Truck % (Total Traffic)

8.4%

9.2%

-8.5%

Truck % (Highway)

11.3%

12.0%

-6.1%

Avg. Travel Time

34.2 min

34.3 min

-0.2%

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)

Road sensor networks and traffic counters

Historical traffic pattern databases

Public traffic count programs published by the

OregonDepartment of Transportation

Historical traffic pattern databases

U.S. Census Bureau
All metrics represent estimates based on statistical modeling and are intended for strategic planning purposes.
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Data current as of:
Q3 2026

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