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Traffic heat map of Erath County, Texas: 420 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 20 and Washington Street

Erath County, Texas Traffic Counts

TrafficZoom tracks traffic on 420 road miles in Erath County, Texas, divided into 4,800 segments averaging 462 ft. Its busiest road, I 20, carries 25,682 vehicles a day, 6.3 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 Erath County, Texas

Traffic

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

vehicles per day4,078
Trucks

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

10.7%
Average travel time

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

30.1 min
Congestion ratio

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

12.1%
Drivers’ average age

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

43.4 yrs
Drivers’ average income

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

$66,982

A typical monitored road in Erath County, Texas sees 4,078 vehicles per day, while its 420 miles of monitored roads together handle 1,306,273 vehicle-miles traveled per day (≈477 million per year). About 1 in 9 vehicles is a truck, in line with Texas (9.8%).

Shorter trips than 94% of counties in Texas

Erath sees 41% lower average daily traffic volume than the state average (4,078 vehicles per day against 6,895), suggesting less demand on each road - lighter roads for freight, but less passing trade for roadside retail. Network-wide, Erath accounts for about 0.2% of Texas's statewide total of vehicle-miles. Erath carries more traffic than 70% of counties in Texas.

At 30.1 minutes, the average travel time is 8% lower than the state level. 94% of counties in Texas have a longer average travel time than Erath's 30.1 minutes.

Congestion runs 26% lower than the state level, at a ratio of 12.1%, which means smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Erath County, Texas

Trafficvehicles per day8,039
Trucks13.1%
Average travel time33.1 min
Congestion ratio13.6%
Drivers’ average age44.1 yrs
Drivers’ average income$68,527

A little more than half of the driving in Erath County, Texas happens on highways: 62% of all vehicle-miles. The average highway carries 8,039 vehicles per day, 191% more than the average non-highway road in the same area, which carries 2,759 vehicles per day.

With 28% of the road miles (119 miles in 1,199 segments), highways punch above their length, carrying 808,014 vehicle-miles traveled per day (≈295 million per year).

By highway travel volume, Erath outranks 62% of counties in Texas.

Lower highway truck share than 66% of counties in Texas

The concentration of trucks on highways (13.1%) is 5% lower than the state average for similar road classifications. The highway traffic mix is typical for Texas: neither freight- nor commuter-dominated.

Erath's highway truck share (13.1%) is lower than 66% of counties in Texas. Erath's highway truck count is lower than 62% of counties in Texas, at roughly 1,050 trucks per day.

non-highway traffic icon

Non-highway Traffic in Erath County, Texas

Trafficvehicles per day2,759
Trucks6.8%
Average travel time29.1 min
Congestion ratio11.6%
Drivers’ average age42.3 yrs
Drivers’ average income$65,175

Local roads carry a significant share of travel in Erath County, Texas: 38% of all vehicle-miles. A typical local road sees 2,759 vehicles per day.

Spread over 301 miles and 3,601 segments, 72% of the road network, local roads carry a lighter load per mile: 498,259 vehicle-miles traveled per day (≈182 million per year). About 1 in 15 vehicles on non-highway roads is a truck (6.8%).

Younger drivers than 68% of counties in Texas

Non-highway roads carry a truck concentration that's 48% lower than the highway network.

The non-highway congestion ratio of 11.6% is 27% lower than the state level, suggesting more efficient local mobility than the state average.

58% of counties in Texas see higher average driver income among trip origins than Erath. Erath's median driver age is lower than 68% of counties in Texas.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 63% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 6% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
September–November is the high season, with volumes +4% versus the annual average.
Lowest month:
February is the quietest month, with volumes -20% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Erath County, Texas, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +4% in high season.

Erath County vs. Texas Traffic Comparison

Erath County's biggest difference from the Texas average is its average daily traffic per road, 41% below it.

MetricErath CountyTexas averageDifference
Traffic4,0786,895-40.9%
Truck % (Total Traffic)10.7%9.8%+9.4%
Truck % (Highway)13.1%13.8%-5.0%
Avg. Travel Time30.1 min32.6 min-7.8%

How Erath County compares

Erath County against nearby counties

Against the 4 nearest areas, Erath County moves 2.2 times the total daily travel; it has the second busiest roads of the five. It is bigger rather than busier: the extra travel comes from carrying more road, not from heavier roads.

Erath 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
Erath County4,07810.7%1,306,27330.1 min12.1%
Somervell County, Texas3,8358.5%265,81632.1 min9.5%
Comanche County, Texas2,16510.6%479,61431.4 min7.0%
Hood County, Texas6,5056.2%1,295,95729.8 min16.7%
Hamilton County, Texas2,26710.4%344,17641.5 min9.4%
Texas average6,8959.8%N/A32.6 min16.4%

Erath County ranked within Texas

Average travel time places Erath County #238 of 254 in Texas - the bottom quarter of the state.

Erath County ranked among 254 county-level areas in Texas (1 = highest); measures without data in every county rank a smaller field, down to 227.
MeasureErath CountyTexas rank
Traffic volume (AADT)4,078#78 of 254
Highway vehicle-miles per day808,014#86 of 227
Truck share on highways13.1%#151 of 227
Highway trucks per day1,050#141 of 227
Average travel time30.1 min#238 of 254
Average driver income$66,982#149 of 254
Average driver age43.4 yrs#173 of 254

The two ends of this table sit far apart: #78 of 254 on average daily traffic volume, against #238 of 254 on average travel time.

Busiest roads in Erath County, Texas

On their busiest stretches, the three busiest roads in Erath County carry 21,812 vehicles a day on average, 5.3 times the typical road in the county (4,078).

I 20 is the busiest road, at 25,682 vehicles a day, 6,482 of them trucks (25.2%). It tops the truck ranking too, with the most trucks.

Trips using I 20 are long: a median of 69.8 minutes against 30.1 county-wide, the mark of a through route.

Freight stands out on I 20: trucks are 25.2% of the traffic there, against 10.7% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 20Motorway · 25,682vehicles6,482trucks · 25.2%
Road class
Motorway
Congestion ratio
29.9%
Median trip time
69.8 min
Drivers’ median age
48.3 yrs
Drivers’ average income
$79,029

Delays build on I 20: its congestion ratio of 30% over free-flow time is well above the county's 12%.

2Washington StreetTrunk road · 20,721vehicles1,228trucks · 5.9%
Road class
Trunk road
Congestion ratio
23.6%
Median trip time
28.5 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$63,388

Washington Street is a trunk route for the county, carrying 5.1 times the county average on its busiest stretch; trucks are 5.9% of it, below the county-wide 10.7%.

3South LoopTrunk road · 19,035vehicles1,251trucks · 6.6%
Road class
Trunk road
Congestion ratio
25.9%
Median trip time
30.1 min
Drivers’ median age
45.6 yrs
Drivers’ average income
$64,245

At 4.7 times the county average, South Loop draws drivers from neighborhoods averaging $64,245 in household income.

4Lingleville RoadSecondary road · 14,685vehicles664trucks · 4.5%
Road class
Secondary road
Congestion ratio
37.4%
Median trip time
27.5 min
Drivers’ median age
44.2 yrs
Drivers’ average income
$67,146

Travel on Lingleville Road's busiest stretch runs 37% over free-flow time, against 12% across the county, so expect slower peak hours.

5US 377Trunk road · 11,462vehicles1,096trucks · 9.6%
Road class
Trunk road
Congestion ratio
13.1%
Median trip time
34.2 min
Drivers’ median age
43.8 yrs
Drivers’ average income
$66,235

The busiest stretch of US 377 carries 2.8 times the county average; trucks are 9.6% of it, below the county-wide 10.7%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 20Motorway · #1 by traffic25,682vehicles6,482trucks · 25.2%
2South LoopTrunk road · #3 by traffic19,035vehicles1,251trucks · 6.6%
3Washington StreetTrunk road · #2 by traffic20,721vehicles1,228trucks · 5.9%
4US 377Trunk road · #5 by traffic11,462vehicles1,096trucks · 9.6%
5Morgan Mill RoadTrunk road · 10,304vehicles871trucks · 8.4%
Road class
Trunk road
Congestion ratio
23.3%
Median trip time
33.5 min
Drivers’ median age
42.8 yrs
Drivers’ average income
$62,438

On its busiest stretch, Morgan Mill Road carries 2.5 times the county average; trucks are 8.4% of it, below the county-wide 10.7%.

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

ErathDepartment 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 Erath County

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

Need segment-level traffic data?

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