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Traffic heat map of Jefferson County, Oregon: 256 miles of roads shaded from blue (light) to red (heavy traffic), busiest on The Dalles-California Highway

Jefferson County, Oregon Traffic Counts

TrafficZoom tracks traffic on 256 road miles in Jefferson County, Oregon, divided into 2,148 segments averaging 628 ft. Its busiest road, The Dalles-California Highway, carries 11,750 vehicles a day, 3.9 times the average road. Built from cross-verified mobile and road-sensor data, these counts help you size up a retail site, plan logistics routes or assess infrastructure needs.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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Total Traffic Volume & Performance in Jefferson County, Oregon

Traffic

The average number of vehicles that travel each day over any road in the road network.

vehicles per day2,979
Trucks

The percentage of the total traffic volume composed of heavy vehicles.

9.7%
Average travel time

The average time of travel averaged among all vehicles traveling on the road network.

33.5 min
Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.

10.0%
Drivers’ average age

Average age of residents in the geographic areas where the vehicle trips originated.

48.3 yrs
Drivers’ average income

Average income of residents in the geographic areas where the vehicle trips originated.

$73,638

A typical monitored road in Jefferson County, Oregon sees 2,979 vehicles per day, while its 256 miles of monitored roads together handle 690,279 vehicle-miles traveled per day (≈252 million per year). About 1 in 10 vehicles is a truck, in line with Oregon (9.2%).

Traffic 50% below the Oregon average

Jefferson's average daily traffic volume is 50% lower than the state average - 2,979 vehicles per day against 5,908 - suggesting less traffic load per road - lighter roads for freight, but less passing trade for roadside retail. Network-wide, Jefferson accounts for about 0.8% of Oregon's statewide total of vehicle-miles. 69% of counties in Oregon see more traffic than Jefferson's 2,979 vehicles per day.

The average trip takes 33.5 minutes, on par with the state level. Its average travel time of 33.5 minutes is shorter than 69% of counties in Oregon.

The congestion ratio of 10.0% is 40% lower, pointing to smoother traffic flow than the state level - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Jefferson County, Oregon

Trafficvehicles per day8,988
Trucks10.4%
Average travel time44.9 min
Congestion ratio23.3%
Drivers’ average age48.4 yrs
Drivers’ average income$73,860

Highways carry most of the traffic in Jefferson County, Oregon: 75% of all vehicle-miles. The average highway carries 8,988 vehicles per day, 701% more than the average non-highway road in the same area, which carries 1,122 vehicles per day.

Highways make up 28% of the monitored road miles (72 miles, 507 segments), so they carry more than their share: 516,970 vehicle-miles traveled per day (≈189 million per year).

Fewer highway trucks than 75% of counties in Oregon

At 10.4%, highway truck share is 13% lower than the state average. The highway traffic mix is typical for Oregon: neither freight- nor commuter-dominated.

By truck concentration, highways here trail 56% of counties in Oregon. Jefferson's highway truck count is lower than 75% of counties in Oregon, at roughly 937 trucks per day.

non-highway traffic icon

Non-highway Traffic in Jefferson County, Oregon

Trafficvehicles per day1,122
Trucks7.4%
Average travel time30.0 min
Congestion ratio5.9%
Drivers’ average age47.2 yrs
Drivers’ average income$73,282

At 25% of vehicle-miles, local roads carry a smaller share of the traffic in Jefferson County, Oregon than highways. On the average non-highway road, that comes to 1,122 vehicles per day.

Local roads make up 72% of the monitored road miles (183 miles in 1,641 segments) but carry less than their share of travel: 173,310 vehicle-miles traveled per day (≈63.3 million per year). Trucks make up 7.4% of non-highway traffic, about 1 in 14 vehicles.

Local congestion 63% below the Oregon average

Compared to highways, non-highway routes see 29% fewer trucks by share.

At 63% lower than the state level, the non-highway congestion ratio of 5.9% signals easier movement on local roads.

Jefferson's average driver income is higher than 60% of counties in Oregon. The driver population here skews older than 51% of counties in Oregon.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and PM peak 2:00 PM–5:00 PM, with volumes reaching approximately 87% higher than the daily average.
Weekend traffic:
Weekend traffic is about as busy as on weekdays (-2%): leisure and through trips largely replace the commute.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +23% versus the annual average.
Lowest month:
January is the quietest month, with volumes -23% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Jefferson County, Oregon, the peak hour concentrates about 8% of the day's traffic, and there is a strong seasonal swing of +23% in high season.

Jefferson County vs. Oregon Traffic Comparison

Jefferson County's biggest difference from the Oregon average is its average daily traffic per road, 50% below it.

MetricJefferson CountyOregon averageDifference
Traffic2,9795,908-49.6%
Truck % (Total Traffic)9.7%9.2%+4.9%
Truck % (Highway)10.4%12.0%-13.0%
Avg. Travel Time33.5 min34.3 min-2.1%

How Jefferson County compares

Jefferson County against nearby counties

Against the 4 nearest areas, Jefferson County runs 8.4 percentage points less truck traffic and moves 45.5% of the total daily travel; it has the fourth busiest roads of the five. The same kind of road, just less of it: traffic per road matches the areas around it while the network itself is smaller.

Jefferson County and the 4 nearest county-level areas by centroid distance, with the Oregon average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Jefferson County2,9799.7%690,27933.5 min10.0%
Deschutes County, Oregon6,1985.9%4,112,38830.6 min20.9%
Wasco County, Oregon3,11315.9%1,390,08938.1 min11.2%
Wheeler County, Oregon78143.2%22,04942.5 min2.7%
Crook County, Oregon3,2237.1%547,67934.8 min10.8%
Oregon average5,9089.2%N/A34.3 min16.6%

Jefferson County ranked within Oregon

Jefferson County sits in the bottom quarter of the Oregon field on highway travel volume, at #27 of 33.

Jefferson County ranked among 36 county-level areas in Oregon (1 = highest); measures without data in every county rank a smaller field, down to 33.
MeasureJefferson CountyOregon rank
Traffic volume (AADT)2,979#25 of 36
Highway vehicle-miles per day516,970#27 of 33
Truck share on highways10.4%#19 of 33
Highway trucks per day937#25 of 33
Average travel time33.5 min#25 of 36
Average driver income$73,638#15 of 36
Average driver age48.3 yrs#18 of 36

Busiest roads in Jefferson County, Oregon

The three busiest roads in Jefferson County average 11,260 vehicles a day, 3.8 times the county average of 2,979 across all its monitored roads.

The Dalles-California Highway is the busiest road, at 11,750 vehicles a day, 938 of them trucks (8.0%). 5th Street is practically level with it at 11,472. Northwest Warm Springs Highway carries the most trucks, 1,067 a day (12.8% of its traffic), although it ranks #4 for all traffic.

Trips using Warm Springs Highway are long: a median of 81.7 minutes against 33.5 county-wide, the mark of a through route.

Santiam Highway skews older: its drivers' median age is 57.8, compared with 48.3 county-wide.

Santiam Highway draws drivers from wealthier areas: their neighborhoods average $96,803 in household income, 31% above the county's $73,638.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1The Dalles-California HighwayTrunk road · 11,750vehicles938trucks · 8.0%
Road class
Trunk road
Congestion ratio
30.7%
Median trip time
44.1 min
Drivers’ median age
48.5 yrs
Drivers’ average income
$74,916

The Dalles-California Highway carries 3.9 times the county average at its busiest, 938 of them trucks (8.0%, below the county-wide 9.7%).

25th StreetTrunk road · 11,472vehicles635trucks · 5.5%
Road class
Trunk road
Congestion ratio
35.6%
Median trip time
44.9 min
Drivers’ median age
50.1 yrs
Drivers’ average income
$68,390

Travel on 5th Street's busiest stretch runs 36% over free-flow time, against 10% across the county, so expect slower peak hours.

34th StreetTrunk road · 10,560vehicles530trucks · 5.0%
Road class
Trunk road
Congestion ratio
34.6%
Median trip time
27.4 min
Drivers’ median age
46.4 yrs
Drivers’ average income
$65,322

4th Street is one of the more congested roads here: trips take 35% longer than at free-flow speed, against 10% county-wide.

4Northwest Warm Springs HighwayTrunk road · 8,308vehicles1,067trucks · 12.8%
Road class
Trunk road
Congestion ratio
19.9%
Median trip time
53.6 min
Drivers’ median age
47.7 yrs
Drivers’ average income
$69,542

Northwest Warm Springs Highway carries through traffic: the median trip using it lasts 53.6 minutes, against 33.5 for the county.

5Northeast 6th StreetTrunk road · 7,670vehicles488trucks · 6.4%
Road class
Trunk road
Congestion ratio
21.6%
Median trip time
44.0 min
Drivers’ median age
45.6 yrs
Drivers’ average income
$66,337

Northeast 6th Street carries 2.6 times the county average on its busiest stretch, where the median trip lasts 44.0 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Northwest Warm Springs HighwayTrunk road · #4 by traffic8,308vehicles1,067trucks · 12.8%
2The Dalles-California HighwayTrunk road · #1 by traffic11,750vehicles938trucks · 8.0%
3Warm Springs HighwayTrunk road · 6,088vehicles835trucks · 13.7%
Road class
Trunk road
Congestion ratio
17.0%
Median trip time
81.7 min
Drivers’ median age
44.3 yrs
Drivers’ average income
$68,932

At 2.0 times the county average, Warm Springs Highway draws drivers from neighborhoods averaging $68,932 in household income.

45th StreetTrunk road · #2 by traffic11,472vehicles635trucks · 5.5%
5Santiam HighwayTrunk road · 4,535vehicles551trucks · 12.2%
Road class
Trunk road
Congestion ratio
9.5%
Median trip time
68.4 min
Drivers’ median age
57.8 yrs
Drivers’ average income
$96,803

Drivers on Santiam Highway are on long journeys, a median 68.4 minutes against 33.5 county-wide: a through route more than a local street.

How to read these road counts
  • The first number is AADT, annual average daily traffic: the vehicles passing a point on an average day, both directions combined and trucks included. On a divided highway both carriageways are added together.
  • Traffic changes along a road, with more near interchanges and towns and less in open country. Every figure for a road describes its busiest stretch in the county, so the two rankings show the same numbers for the same road.
  • The second number is the trucks on that stretch, a part of its AADT. The bar splits the AADT into cars and light vehicles (blue) and trucks (amber).
  • See segment-level AADT for any road on TrafficZoom.

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

JeffersonDepartment of Transportation

Demographic Baseline for O-D Modeling

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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Counties near Jefferson County

The same traffic breakdown for the areas closest to Jefferson County, Oregon.

Need segment-level traffic data?

Identify traffic patterns street by street and analyze the exact corridors that matter to your project.