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Traffic heat map of Spokane County, Washington: 1,446 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 90 and Spokane Valley Freeway

Spokane County, Washington Traffic Counts

Our Spokane County, Washington traffic data covers 36,539 road segments over 1,446 road miles, with an average segment of just 209 ft. It ranks among the top 5 counties in Washington for average daily traffic. Whether you are evaluating a new retail location, planning routes or assessing infrastructure, these numbers replace guesswork.
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 Spokane County, Washington

Traffic

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

vehicles per day7,390
Trucks

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

5.8%
Average travel time

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

33.4 min
Congestion ratio

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

19.6%
Drivers’ average age

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

44.8 yrs
Drivers’ average income

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

$78,652

Our data shows 7,390 vehicles per day on the average road in Spokane County, Washington, and 10,252,503 vehicle-miles traveled per day (≈3.7 billion per year) across its 1,446 miles of monitored roads. About 1 in 17 vehicles is a truck, fewer than the 1 in 14 across Washington.

Busier roads than 92% of counties in Washington

At 7,390 vehicles per day, the average road in Spokane tracks closely with the state average of 7,322 vehicles per day. Across the whole network, that travel is about 6.6% of Washington's statewide total. Spokane carries more traffic than 92% of counties in Washington.

The average trip takes 33.4 minutes, on par with the state level. Its average travel time of 33.4 minutes is shorter than 58% of counties in Washington.

The congestion ratio of 19.6% is in line with the state level.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Spokane County, Washington

Trafficvehicles per day17,649
Trucks8.4%
Average travel time34.2 min
Congestion ratio31.2%
Drivers’ average age45.5 yrs
Drivers’ average income$77,355

A significant share of driving in Spokane County, Washington, 34% of vehicle-miles, happens on highways. The average highway carries 17,649 vehicles per day, 146% more than the average non-highway road in the same area, which carries 7,178 vehicles per day.

Highways make up 13% of the monitored road miles (193 miles, 739 segments), so they carry more than their share: 3,451,591 vehicle-miles traveled per day (≈1.3 billion per year).

By highway travel volume, that ranks Spokane in the top 5 counties in Washington.

Lower highway truck share than 75% of counties in Washington

At 8.4%, highway truck share is 12% lower than the state average. The highway traffic mix is typical for Washington: neither freight- nor commuter-dominated.

By truck concentration, highways here trail 75% of counties in Washington. Spokane's highway truck count is higher than 66% of counties in Washington, at roughly 1,482 trucks per day.

non-highway traffic icon

Non-highway Traffic in Spokane County, Washington

Trafficvehicles per day7,178
Trucks4.5%
Average travel time33.4 min
Congestion ratio19.3%
Drivers’ average age44.6 yrs
Drivers’ average income$79,191

Local roads carry more than half of all travel in Spokane County, Washington (66% of vehicle-miles). A typical local road sees 7,178 vehicles per day.

Spread over 1,252 miles and 35,800 segments, 87% of the road network, local roads carry a lighter load per mile: 6,800,912 vehicle-miles traveled per day (≈2.5 billion per year). About 1 in 22 vehicles on non-highway roads is a truck (4.5%).

Younger drivers than 71% of counties in Washington

Compared to highways, non-highway routes see 47% fewer trucks by share.

At 19.3%, the non-highway congestion ratio matches the state level closely.

50% of counties in Washington see lower average driver income among trip origins than Spokane. Spokane's median driver age is lower than 71% 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 3:00 PM–5:00 PM, with volumes reaching approximately 85% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 23% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +7% versus the annual average.
Lowest month:
January is the quietest month, with volumes -12% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Spokane County, Washington, the peak hour concentrates about 8% of the day's traffic, and there is a noticeable seasonal swing of +7% in high season.

Spokane County vs. Washington Traffic Comparison

Spokane County's biggest difference from the Washington average is its truck share, 18% below it.

MetricSpokane CountyWashington averageDifference
Traffic7,3907,322+0.9%
Truck % (Total Traffic)5.8%7.1%-18.4%
Truck % (Highway)8.4%9.5%-11.7%
Avg. Travel Time33.4 min33.2 min+0.7%

How Spokane County compares

Spokane County moves more traffic than any nearby county

Set against the average of the 4 areas nearest to it, Spokane County moves 7.3 times the total daily travel and carries 117.4% more traffic on a typical road; it has the busiest roads of the five. Bigger and busier at once: more road than the areas around it and heavier traffic on it, which makes it the centre of gravity for travel in this part of the map.

Spokane 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
Spokane County7,3905.8%10,252,50333.4 min19.6%
Kootenai County, Idaho5,9556.7%3,854,99135.2 min19.5%
Benewah County, Idaho2,83511.4%175,95238.2 minN/A
Lincoln County, Washington1,38114.4%715,27147.6 min7.2%
Whitman County, Washington3,4249.2%837,13735.4 min11.1%
Washington average7,3227.1%N/A33.2 min19.9%

Spokane County ranked within Washington

Spokane County sits in the top quarter of the Washington field on average daily traffic volume, at #4 of 39.

Spokane County ranked among 39 county-level areas in Washington (1 = highest); measures without data in every county rank a smaller field, down to 33.
MeasureSpokane CountyWashington rank
Traffic volume (AADT)7,390#4 of 39
Highway vehicle-miles per day3,451,591#5 of 33
Truck share on highways8.4%#25 of 33
Highway trucks per day1,482#12 of 33
Average travel time33.4 min#23 of 39
Average driver income$78,652#20 of 39
Average driver age44.8 yrs#28 of 39

Spokane County ranks #4 of 39 on average daily traffic volume but #25 of 33 on truck share on highways - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Spokane County, Washington

Traffic concentrates on a few corridors: the three busiest roads average 87,559 vehicles a day, against 7,390 on the average road in Spokane County.

I 90 is the busiest road, at 109,077 vehicles a day, 6,778 of them trucks (6.2%). It tops the truck ranking too, with the most trucks.

Drivers on Hamilton Street come from neighborhoods with an average household income of $58,605, 25% below the county average of $78,652.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 90Motorway · 109,077vehicles6,778trucks · 6.2%
Road class
Motorway
Congestion ratio
83.5%
Median trip time
33.8 min
Drivers’ median age
45.4 yrs
Drivers’ average income
$75,538

I 90 is one of the more congested roads here: trips take 83% longer than at free-flow speed, against 20% county-wide.

2Spokane Valley FreewayMotorway · 92,891vehicles6,051trucks · 6.5%
Road class
Motorway
Congestion ratio
70.1%
Median trip time
33.2 min
Drivers’ median age
45.5 yrs
Drivers’ average income
$77,021

Spokane Valley Freeway carries 12.6 times the county average on its busiest stretch, where the median trip lasts 33.2 minutes.

3Greene StreetPrimary road · 60,710vehicles2,482trucks · 4.1%
Road class
Primary road
Congestion ratio
90.3%
Median trip time
33.8 min
Drivers’ median age
44.8 yrs
Drivers’ average income
$67,200

Delays build on Greene Street: its congestion ratio of 90% over free-flow time is well above the county's 20%.

4Hamilton StreetPrimary road · 46,394vehicles1,664trucks · 3.6%
Road class
Primary road
Congestion ratio
79.7%
Median trip time
33.3 min
Drivers’ median age
42.7 yrs
Drivers’ average income
$58,605

At 6.3 times the county average, Hamilton Street draws drivers from neighborhoods averaging $58,605 in household income.

5Freya WayPrimary road · 41,590vehicles2,261trucks · 5.4%
Road class
Primary road
Congestion ratio
61.5%
Median trip time
32.0 min
Drivers’ median age
44.8 yrs
Drivers’ average income
$68,778

A main artery: Freya Way's busiest stretch carries 5.6 times the county average; trucks are 5.4% of it, below the county-wide 5.8%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 90Motorway · #1 by traffic109,077vehicles6,778trucks · 6.2%
2Spokane Valley FreewayMotorway · #2 by traffic92,891vehicles6,051trucks · 6.5%
3US 2Motorway · 32,092vehicles3,458trucks · 10.8%
Road class
Motorway
Congestion ratio
42.5%
Median trip time
32.4 min
Drivers’ median age
44.8 yrs
Drivers’ average income
$66,890

On its busiest stretch, US 2 carries 4.3 times the county average; trucks are 10.8% of it, above the county-wide 5.8%.

4Greene StreetPrimary road · #3 by traffic60,710vehicles2,482trucks · 4.1%
5Freya StreetPrimary road · 39,062vehicles2,310trucks · 5.9%
Road class
Primary road
Congestion ratio
57.0%
Median trip time
33.5 min
Drivers’ median age
44.8 yrs
Drivers’ average income
$70,149

Freya Street is a trunk route for the county, carrying 5.3 times the county average on its busiest stretch; trucks are 5.9% of it, in line with the county-wide 5.8%.

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

SpokaneDepartment 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 Spokane County

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

Need segment-level traffic data?

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