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Traffic heat map of King County, Texas: 75 miles of roads shaded from blue (light) to red (heavy traffic), busiest on US 82 and US 83

King County, Texas Traffic Counts

How busy are the roads of King County, Texas? We measure 75 road miles, divided into 256 segments, with multi-sourced, cross-verified mobile and sensor data. Trips here are among the 3 longest of any county in Texas. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
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 King County, Texas

Traffic

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

vehicles per day1,195
Trucks

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

16.1%
Average travel time

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

74.4 min
Congestion ratio

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

3.1%
Drivers’ average age

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

48.5 yrs
Drivers’ average income

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

$66,218

The average monitored road in King County, Texas carries 1,195 vehicles per day. Across its 75 miles of monitored roads, that adds up to 96,977 vehicle-miles traveled per day (≈35.4 million per year). About 1 in 6 vehicles is a truck, well above the 9.8% across Texas - a freight-heavy mix.

Trips 128% longer than the Texas average

King sees 83% lower average daily traffic volume than the state average (1,195 vehicles per day against 6,895), suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Across the whole network, that travel is less than 0.1% of Texas's statewide total. By volume, King's 1,195 vehicles per day trails 91% of counties in Texas.

At 74.4 minutes, the average travel time is 128% higher than the state level. Its average travel time of 74.4 minutes is longer than 100% of counties in Texas.

At 81% lower than the state level, the 3.1% congestion ratio signals smoother traffic flow - free-flowing roads make scheduled deliveries highly predictable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in King County, Texas

Trafficvehicles per day1,668
Trucks18.6%
Average travel time108.0 min
Congestion ratio3.9%
Drivers’ average age53.5 yrs
Drivers’ average income$70,010

A little more than half of the driving in King County, Texas happens on highways: 65% of all vehicle-miles. The average highway carries 1,668 vehicles per day, 108% more than the average non-highway road in the same area, which carries 803 vehicles per day.

Highways make up 48% of the monitored road miles (36 miles, 116 segments), so they carry more than their share: 63,464 vehicle-miles traveled per day (≈23.2 million per year).

Fewer highway trucks than 94% of counties in Texas

Highway truck concentration here runs 35% higher than the state average, at 18.6%. Highways here lean toward freight, so highway access is a real asset for logistics operators.

King's highway truck share (18.6%) is higher than 64% of counties in Texas. By raw truck volume, King carries fewer highway trucks than 94% of counties in Texas.

non-highway traffic icon

Non-highway Traffic in King County, Texas

Trafficvehicles per day803
Trucks11.3%
Average travel time46.5 min
Congestion ratio2.5%
Drivers’ average age45.7 yrs
Drivers’ average income$65,492

Local roads carry a significant share of travel in King County, Texas: 35% of all vehicle-miles. The average non-highway road carries 803 vehicles per day.

Spread over 39 miles and 140 segments, 52% of the road network, local roads carry a lighter load per mile: 33,512 vehicle-miles traveled per day (≈12.2 million per year). Trucks make up 11.3% of non-highway traffic, about 1 in 9 vehicles.

Local congestion 85% below the Texas average

Compared to highways, non-highway routes see 39% fewer trucks by share.

At 85% lower than the state level, the non-highway congestion ratio of 2.5% signals easier movement on local roads.

Trip origins here have lower average income than 63% of counties in Texas. The driver population here skews older than 74% of counties in Texas.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In King County, Texas, the peak hour concentrates about 8% of the day's traffic.

King County vs. Texas Traffic Comparison

The average travel time sets King County apart: 128% above the Texas average. Its average daily traffic per road, by contrast, is 83% below.

MetricKing CountyTexas averageDifference
Traffic1,1956,895-82.7%
Truck % (Total Traffic)16.1%9.8%+64.3%
Truck % (Highway)18.6%13.8%+34.9%
Avg. Travel Time74.4 min32.6 min+128.0%

How King County compares

Trips in King County run longer than in any nearby county

Compared with its 4 closest neighbours, King County sees 94.7% longer typical trips and carries 61.8% more traffic on a typical road; it has the busiest roads of the five. It absorbs markedly more traffic than the areas around it without running any tighter - spare capacity rather than strain.

King County and the 4 nearest county-level areas by centroid distance, with the Texas average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
King County1,19516.1%96,97774.4 min3.1%
Cottle County, Texas71512.4%59,06237.2 min3.6%
Dickens County, Texas66014.9%99,44044.1 min3.4%
Stonewall County, Texas78010.7%67,78534.4 min2.9%
Knox County, Texas80015.7%155,67537.1 min3.9%
Texas average6,8959.8%N/A32.6 min16.4%

King County ranked within Texas

King County sits in Texas's top three on average travel time.

King County ranked among 254 county-level areas in Texas (1 = highest); measures without data in every county rank a smaller field, down to 227.
MeasureKing CountyTexas rank
Traffic volume (AADT)1,195#232 of 254
Highway vehicle-miles per day63,464#218 of 227
Truck share on highways18.6%#82 of 227
Highway trucks per day309#213 of 227
Average travel time74.4 min#2 of 254
Average driver income$66,218#161 of 254
Average driver age48.5 yrs#67 of 254

King County ranks #2 of 254 on average travel time but #232 of 254 on average daily traffic volume. Some of the longest trips in Texas on some of its emptiest roads - distance, not congestion, is what sets travel time here.

Busiest roads in King County, Texas

Traffic concentrates on a few corridors: the three busiest roads average 1,072 vehicles a day, against 1,195 on the average road in King County.

US 82 leads with 1,926 vehicles a day, 357 of them trucks (18.5%). That is 93% more than the next road, US 83 (999). It tops the truck ranking too, with the most trucks.

Trips on TX 222 are short, a median of 33.9 minutes against 74.4 county-wide, so it serves mostly local traffic.

Drivers on TX 222 come from neighborhoods with an average household income of $47,304, 29% below the county average of $66,218.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1US 82Trunk road · 1,926vehicles357trucks · 18.5%
Road class
Trunk road
Congestion ratio
3.9%
Median trip time
107.9 min
Drivers’ median age
53.5 yrs
Drivers’ average income
$70,010

US 82 carries through traffic: the median trip using it lasts 107.9 minutes, against 74.4 for the county.

2US 83Primary road · 999vehicles112trucks · 11.2%
Road class
Primary road
Congestion ratio
2.5%
Median trip time
47.0 min
Drivers’ median age
44.5 yrs
Drivers’ average income
$69,431

US 83 is a quieter road: its busiest stretch carries 16% less than the county average; trucks are 11.2% of it, below the county-wide 16.1%.

3TX 222Primary road · 292vehicles40trucks · 13.7%
Road class
Primary road
Median trip time
33.9 min
Drivers’ median age
54.2 yrs
Drivers’ average income
$47,304

Even at its busiest, TX 222 carries 76% less than the county average; trucks are 13.7% of it, below the county-wide 16.1%.

414th StreetTertiary road · 249vehicles19trucks · 7.6%
Road class
Tertiary road
Median trip time
42.3 min
Drivers’ median age
54.0 yrs
Drivers’ average income
$70,192

Trips on 14th Street are short, a median 42.3 minutes against 74.4 county-wide, so it mostly serves local errands and commutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 82Trunk road · #1 by traffic1,926vehicles357trucks · 18.5%
2US 83Primary road · #2 by traffic999vehicles112trucks · 11.2%
3TX 222Primary road · #3 by traffic292vehicles40trucks · 13.7%
414th StreetTertiary road · #4 by traffic249vehicles19trucks · 7.6%
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

KingDepartment 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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— demographics, housing and mobility data.

Counties near King County

The same traffic breakdown for the areas closest to King County, Texas.

Need segment-level traffic data?

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