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Traffic heat map of Franklin County, Washington: 486 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 182 and Lewis and Clark Trail

Franklin County, Washington Traffic Counts

Traffic analytics for Franklin County, Washington, calculated from real-world mobile and sensor networks on 4,525 road segments (486 road miles, about 567 ft each). Its busiest road, I 182, carries 44,102 vehicles a day, 8.4 times the average road. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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total traffic icon

Total Traffic Volume & Performance in Franklin County, Washington

Traffic

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

vehicles per day5,247
Trucks

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

9.5%
Average travel time

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

31.7 min
Congestion ratio

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

17.1%
Drivers’ average age

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

41.5 yrs
Drivers’ average income

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

$91,171

Our data shows 5,247 vehicles per day on the average road in Franklin County, Washington, and 2,212,418 vehicle-miles traveled per day (≈808 million per year) across its 486 miles of monitored roads. At 9.5%, the truck share runs above the 7.1% across Washington: about 1 in 11 vehicles.

Shorter trips than 82% of counties in Washington

At 5,247 vehicles per day, the average monitored road in Franklin carries 28% less traffic than the state average of 7,322, suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. In total volume terms, its road network carries about 1.4% of Washington's statewide total of vehicle-miles. By volume, Franklin's 5,247 vehicles per day outpaces 68% of counties in Washington.

At 31.7 minutes, the average travel time matches the state level closely. Its average travel time of 31.7 minutes is shorter than 82% of counties in Washington.

The congestion ratio of 17.1% runs slightly lower than the state level (14% lower) - relevant for traffic control and delivery planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Franklin County, Washington

Trafficvehicles per day16,496
Trucks11.9%
Average travel time35.0 min
Congestion ratio39.4%
Drivers’ average age42.7 yrs
Drivers’ average income$88,299

A little more than half of the driving in Franklin County, Washington happens on highways: 58% of all vehicle-miles. The average highway carries 16,496 vehicles per day, 242% more than the average non-highway road in the same area, which carries 4,827 vehicles per day.

Highways make up 24% of the monitored road miles (116 miles, 163 segments), so they carry more than their share: 1,290,705 vehicle-miles traveled per day (≈471 million per year).

By highway travel volume, Franklin outranks 53% of counties in Washington.

Higher highway truck share than 72% of counties in Washington

At 11.9%, highway truck share is 26% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.

Franklin's highway truck share (11.9%) is higher than 72% of counties in Washington. Franklin's highway truck count is higher than 56% of counties in Washington, at roughly 1,970 trucks per day.

non-highway traffic icon

Non-highway Traffic in Franklin County, Washington

Trafficvehicles per day4,827
Trucks6.1%
Average travel time31.6 min
Congestion ratio16.2%
Drivers’ average age40.8 yrs
Drivers’ average income$94,624

A significant share of driving in Franklin County, Washington, 42% of vehicle-miles, happens on local roads. A typical local road sees 4,827 vehicles per day.

Spread over 370 miles and 4,362 segments, 76% of the road network, local roads carry a lighter load per mile: 921,714 vehicle-miles traveled per day (≈336 million per year). The truck share on non-highway roads is 6.1%.

Younger drivers than 95% of counties in Washington

The concentration of trucks on non-highway roads is 49% lower than on highways.

Non-highway congestion (16.2%) runs 17% lower than the state average, pointing to smoother local traffic flow.

Franklin's average driver income is higher than 82% of counties in Washington. 95% of counties in Washington have an older driver population than Franklin.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and a long afternoon plateau from 2:00 PM to 8:00 PM, with volumes reaching approximately 71% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 18% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +9% versus the annual average.
Lowest month:
January is the quietest month, with volumes -16% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Franklin County, Washington, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +9% in high season.

Franklin County vs. Washington Traffic Comparison

Of the four measures, truck share differs most: Franklin County runs 33% above the Washington average. Its average daily traffic per road, by contrast, is 28% below.

MetricFranklin CountyWashington averageDifference
Traffic5,2477,322-28.3%
Truck % (Total Traffic)9.5%7.1%+33.3%
Truck % (Highway)11.9%9.5%+25.6%
Avg. Travel Time31.7 min33.2 min-4.4%

How Franklin County compares

Franklin County against nearby counties

Set against the average of the 4 areas nearest to it, Franklin County is 44.7% more congested and sees 21.5% shorter typical trips; it has the second busiest roads of the five. Busier roads and shorter trips together - destinations here sit closer to one another than in the areas around it.

Franklin 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
Franklin County5,2479.5%2,212,41831.7 min17.1%
Walla Walla County, Washington4,4058.3%1,241,22544.8 min13.5%
Benton County, Washington6,1128.2%4,794,57632.4 min18.9%
Adams County, Washington2,52317.6%1,620,37040.1 min7.6%
Columbia County, Washington2,03511.1%78,69744.4 min7.2%
Washington average7,3227.1%N/A33.2 min19.9%

Franklin County ranked within Washington

Average driver age places Franklin County #37 of 39 in Washington - the bottom quarter of the state.

Franklin County ranked among 39 county-level areas in Washington (1 = highest); measures without data in every county rank a smaller field, down to 33.
MeasureFranklin CountyWashington rank
Traffic volume (AADT)5,247#13 of 39
Highway vehicle-miles per day1,290,705#16 of 33
Truck share on highways11.9%#10 of 33
Highway trucks per day1,970#15 of 33
Average travel time31.7 min#32 of 39
Average driver income$91,171#8 of 39
Average driver age41.5 yrs#37 of 39

Franklin County ranks #8 of 39 on average driver income but #37 of 39 on average driver age - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Franklin County, Washington

On their busiest stretches, the three busiest roads in Franklin County carry 35,797 vehicles a day on average, 6.8 times the typical road in the county (5,247).

I 182 is the busiest road, at 44,102 vehicles a day, 2,736 of them trucks (6.2%). Thomas S. Foley Memorial Highway carries the most trucks, 3,248 a day (14.7% of its traffic), although it ranks #5 for all traffic.

Thomas S. Foley Memorial Highway carries longer journeys than most roads here, with a median trip of 44.7 minutes against 31.7 county-wide.

Few trucks use Road 68: 4.0% of its traffic, under half the county's 9.5%.

Trucks make up 14.7% of traffic on Thomas S. Foley Memorial Highway, against 9.5% across all roads in the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 182Motorway · 44,102vehicles2,736trucks · 6.2%
Road class
Motorway
Congestion ratio
40.5%
Median trip time
32.1 min
Drivers’ median age
42.8 yrs
Drivers’ average income
$94,591

I 182 carries 8.4 times the county average at its busiest, 2,736 of them trucks (6.2%, below the county-wide 9.5%).

2Lewis and Clark TrailMotorway · 31,908vehicles2,540trucks · 8.0%
Road class
Motorway
Congestion ratio
55.5%
Median trip time
34.5 min
Drivers’ median age
42.6 yrs
Drivers’ average income
$84,371

Travel on Lewis and Clark Trail's busiest stretch runs 56% over free-flow time, against 17% across the county, so expect slower peak hours.

3Road 68Secondary road · 31,381vehicles1,253trucks · 4.0%
Road class
Secondary road
Congestion ratio
34.4%
Median trip time
29.8 min
Drivers’ median age
41.7 yrs
Drivers’ average income
$95,265

Road 68 carries 6.0 times the county average on its busiest stretch, where the median trip lasts 29.8 minutes.

4Court StreetPrimary road · 23,107vehicles1,164trucks · 5.0%
Road class
Primary road
Congestion ratio
57.9%
Median trip time
33.0 min
Drivers’ median age
40.8 yrs
Drivers’ average income
$82,204

Court Street is one of the more congested roads here: trips take 58% longer than at free-flow speed, against 17% county-wide.

5Thomas S. Foley Memorial HighwayTrunk road · 22,109vehicles3,248trucks · 14.7%
Road class
Trunk road
Congestion ratio
23.7%
Median trip time
44.7 min
Drivers’ median age
42.5 yrs
Drivers’ average income
$84,776

Thomas S. Foley Memorial Highway peaks at 22,109 vehicles a day, 4.2 times the county average; trucks are 14.7% of it, above the county-wide 9.5%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Thomas S. Foley Memorial HighwayTrunk road · #5 by traffic22,109vehicles3,248trucks · 14.7%
2I 182Motorway · #1 by traffic44,102vehicles2,736trucks · 6.2%
3Lewis and Clark TrailMotorway · #2 by traffic31,908vehicles2,540trucks · 8.0%
4Road 68Secondary road · #3 by traffic31,381vehicles1,253trucks · 4.0%
5Court StreetPrimary road · #4 by traffic23,107vehicles1,164trucks · 5.0%
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

FranklinDepartment 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 Franklin County

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

Need segment-level traffic data?

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