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Traffic heat map of Douglas County, Washington: 331 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Senator George Sellar Bridge

Douglas County, Washington Traffic Counts

TrafficZoom tracks traffic on 331 road miles in Douglas County, Washington, divided into 2,945 segments averaging 593 ft. Its busiest road, Senator George Sellar Bridge, carries 55,624 vehicles a day, 12.2 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 Douglas County, Washington

Traffic

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

vehicles per day4,552
Trucks

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

7.8%
Average travel time

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

32.7 min
Congestion ratio

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

14.6%
Drivers’ average age

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

46.0 yrs
Drivers’ average income

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

$88,457

A typical monitored road in Douglas County, Washington sees 4,552 vehicles per day, while its 331 miles of monitored roads together handle 1,068,265 vehicle-miles traveled per day (≈390 million per year). Trucks are 7.8% of traffic, close to the 7.1% across Washington.

Traffic 38% below the Washington average

Douglas sees 38% lower average daily traffic volume than the state average (4,552 vehicles per day against 7,322), suggesting less demand on each road - lighter roads for freight, but less passing trade for roadside retail. Across the whole network, that travel is about 0.7% of Washington's statewide total. Douglas carries more traffic than 61% of counties in Washington.

Journey times here (32.7 minutes on average) closely track the state level. On travel time, Douglas runs shorter than 63% of counties in Washington.

Congestion runs 26% lower than the state level, at a ratio of 14.6%, which means smoother traffic flow - travel times are easy to plan around for scheduled deliveries.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Douglas County, Washington

Trafficvehicles per day10,372
Trucks8.8%
Average travel time39.2 min
Congestion ratio26.9%
Drivers’ average age46.3 yrs
Drivers’ average income$83,839

Highways carry more than half of all travel in Douglas County, Washington (58% of vehicle-miles). The average highway carries 10,372 vehicles per day, 179% more than the average non-highway road in the same area, which carries 3,711 vehicles per day.

With 21% of the road miles (68 miles in 372 segments), highways punch above their length, carrying 616,755 vehicle-miles traveled per day (≈225 million per year).

Lower highway truck share than 66% of counties in Washington

At 8.8%, highway truck share is 7% lower than the state average. The highway traffic mix is typical for Washington: neither freight- nor commuter-dominated.

Douglas's highway truck share (8.8%) is lower than 66% of counties in Washington. By raw truck volume, Douglas carries fewer highway trucks than 59% of counties in Washington.

non-highway traffic icon

Non-highway Traffic in Douglas County, Washington

Trafficvehicles per day3,711
Trucks6.5%
Average travel time31.8 min
Congestion ratio12.9%
Drivers’ average age45.8 yrs
Drivers’ average income$92,294

A significant share of driving in Douglas County, Washington, 42% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 3,711 vehicles per day.

Local roads make up 79% of the monitored road miles (262 miles in 2,573 segments) but carry less than their share of travel: 451,510 vehicle-miles traveled per day (≈165 million per year). About 1 in 15 vehicles on non-highway roads is a truck (6.5%).

Drivers from higher-income areas than 76% of counties in Washington

The concentration of trucks on non-highway roads is 27% lower than on highways.

The non-highway congestion ratio of 12.9% is 34% lower than the state level, suggesting more efficient local mobility than the state average.

76% of counties in Washington see lower average driver income among trip origins than Douglas. Douglas's median driver age is lower than 58% of counties in Washington.

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 84% 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:
May–July is the high season, with volumes +24% versus the annual average.
Lowest month:
January is the quietest month, with volumes -36% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Douglas County, Washington, the peak hour concentrates about 8% of the day's traffic, and there is a strong seasonal swing of +24% in high season.

Douglas County vs. Washington Traffic Comparison

The average daily traffic per road sets Douglas County apart: 38% below the Washington average.

MetricDouglas CountyWashington averageDifference
Traffic4,5527,322-37.8%
Truck % (Total Traffic)7.8%7.1%+10.0%
Truck % (Highway)8.8%9.5%-7.2%
Avg. Travel Time32.7 min33.2 min-1.3%

How Douglas County compares

Douglas County against nearby counties

Set against the average of the 4 areas nearest to it, Douglas County moves 47.3% of the total daily travel; it has the second busiest roads of the five.

Douglas County and the 4 nearest county-level areas by centroid distance, with the Washington average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Douglas County4,5527.8%1,068,26532.7 min14.6%
Grant County, Washington3,49711.5%3,043,38133.8 min11.2%
Chelan County, Washington6,1566.6%1,717,84237.0 min20.4%
Okanogan County, Washington2,3298.6%802,72532.5 min8.9%
Kittitas County, Washington3,71116.3%3,473,82334.5 min13.7%
Washington average7,3227.1%N/A33.2 min19.9%

Douglas County ranked within Washington

Average driver income places Douglas County #10 of 39 in Washington - the top quarter of the state.

Douglas County ranked among 39 county-level areas in Washington (1 = highest); measures without data in every county rank a smaller field, down to 33.
MeasureDouglas CountyWashington rank
Traffic volume (AADT)4,552#16 of 39
Highway vehicle-miles per day616,755#21 of 33
Truck share on highways8.8%#22 of 33
Highway trucks per day916#20 of 33
Average travel time32.7 min#25 of 39
Average driver income$88,457#10 of 39
Average driver age46.0 yrs#23 of 39

Busiest roads in Douglas County, Washington

On their busiest stretches, the three busiest roads in Douglas County carry 36,495 vehicles a day on average, 8.0 times the typical road in the county (4,552).

Senator George Sellar Bridge leads with 55,624 vehicles a day, 2,304 of them trucks (4.1%). No other road comes close: Odabashian Bridge, in second place, carries 27,248. It tops the truck ranking too, with the most trucks.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Senator George Sellar BridgePrimary road · 55,624vehicles2,304trucks · 4.1%
Road class
Primary road
Congestion ratio
77.3%
Median trip time
31.4 min
Drivers’ median age
46.8 yrs
Drivers’ average income
$85,379

Senator George Sellar Bridge is one of the more congested roads here: trips take 77% longer than at free-flow speed, against 15% county-wide.

2Odabashian BridgeTrunk road · 27,248vehicles1,693trucks · 6.2%
Road class
Trunk road
Congestion ratio
34.1%
Median trip time
34.5 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$94,333

At 6.0 times the county average, Odabashian Bridge draws drivers from neighborhoods averaging $94,333 in household income.

3US 2/97Trunk road · 26,612vehicles1,341trucks · 5.0%
Road class
Trunk road
Congestion ratio
35.2%
Median trip time
33.5 min
Drivers’ median age
47.1 yrs
Drivers’ average income
$94,072

A main artery: US 2/97's busiest stretch carries 5.8 times the county average; trucks are 5.0% of it, below the county-wide 7.8%.

4State Route 285Primary road · 26,582vehicles1,200trucks · 4.5%
Road class
Primary road
Congestion ratio
85.1%
Median trip time
31.5 min
Drivers’ median age
46.5 yrs
Drivers’ average income
$85,888

Delays build on State Route 285: its congestion ratio of 85% over free-flow time is well above the county's 15%.

5Sunset HighwayTrunk road · 15,282vehicles868trucks · 5.7%
Road class
Trunk road
Congestion ratio
45.5%
Median trip time
32.2 min
Drivers’ median age
46.5 yrs
Drivers’ average income
$89,262

Sunset Highway carries 3.4 times the county average at its busiest, 868 of them trucks (5.7%, below the county-wide 7.8%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1Senator George Sellar BridgePrimary road · #1 by traffic55,624vehicles2,304trucks · 4.1%
2Odabashian BridgeTrunk road · #2 by traffic27,248vehicles1,693trucks · 6.2%
3US 2/97Trunk road · #3 by traffic26,612vehicles1,341trucks · 5.0%
4State Route 285Primary road · #4 by traffic26,582vehicles1,200trucks · 4.5%
5Rock Island RoadTrunk road · 13,882vehicles1,138trucks · 8.2%
Road class
Trunk road
Congestion ratio
31.6%
Median trip time
35.8 min
Drivers’ median age
44.2 yrs
Drivers’ average income
$80,584

Rock Island Road carries 3.0 times the county average on its busiest stretch, where the median trip lasts 35.8 minutes.

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

DouglasDepartment 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 Douglas County

The same traffic breakdown for the areas closest to Douglas County, Washington.

Need segment-level traffic data?

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