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Traffic heat map of McMullen County, Texas: 160 miles of roads shaded from blue (light) to red (heavy traffic), busiest on TX 16 and River Street

McMullen County, Texas Traffic Counts

Our McMullen County, Texas traffic data covers 466 road segments over 160 road miles, with an average segment of just 1,813 ft. About 1 in 6 vehicles here is a truck, against 1 in 10 across Texas. 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 McMullen County, Texas

Traffic

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

vehicles per day1,574
Trucks

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

17.0%
Average travel time

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

48.0 min
Congestion ratio

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

5.5%
Drivers’ average age

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

44.7 yrs
Drivers’ average income

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

$51,104

Our data shows 1,574 vehicles per day on the average road in McMullen County, Texas, and 208,525 vehicle-miles traveled per day (≈76.1 million per year) across its 160 miles of monitored roads. About 1 in 6 vehicles is a truck, well above the 9.8% across Texas - a freight-heavy mix.

Longer trips than 92% of counties in Texas

McMullen's average daily traffic volume is 77% lower than the state average - 1,574 vehicles per day against 6,895 - suggesting less traffic load per road - very light roads: easy truck access, but little passing trade for roadside retail. Across the whole network, that travel is less than 0.1% of Texas's statewide total. 84% of counties in Texas see more traffic than McMullen's 1,574 vehicles per day.

Journey times run 47% higher than the state level, at 48.0 minutes on average. On travel time, McMullen runs longer than 92% of counties in Texas.

Congestion runs 67% lower than the state level, at a ratio of 5.5%, which means smoother traffic flow - delays are rare enough to plan travel times almost to the minute.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in McMullen County, Texas

Trafficvehicles per day1,979
Trucks19.9%
Average travel time71.3 min
Congestion ratio4.5%
Drivers’ average age46.7 yrs
Drivers’ average income$63,036

Highways play a minor role in McMullen County, Texas, carrying just 4% of all vehicle-miles. The average highway carries 1,979 vehicles per day, 26% more than the average non-highway road in the same area, which carries 1,567 vehicles per day.

Highways make up 2% of the monitored road miles (4 miles, 8 segments), so they carry more than their share: 7,723 vehicle-miles traveled per day (≈2.8 million per year).

Fewer highway trucks than 88% of counties in Texas

At 19.9%, highway truck share is 45% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.

72% of counties in Texas see a lower highway truck share than McMullen's 19.9%. By raw truck volume, McMullen carries fewer highway trucks than 88% of counties in Texas.

non-highway traffic icon

Non-highway Traffic in McMullen County, Texas

Trafficvehicles per day1,567
Trucks16.9%
Average travel time47.6 min
Congestion ratio5.5%
Drivers’ average age44.7 yrs
Drivers’ average income$51,047

Nearly all driving in McMullen County, Texas happens on local roads: 96% of every vehicle-mile. The average non-highway road carries 1,567 vehicles per day.

Their share of road miles is similar, 98% (157 miles in 458 segments), carrying 200,802 vehicle-miles traveled per day (≈73.3 million per year). About 1 in 6 vehicles on non-highway roads is a truck (16.9%).

Drivers from lower-income areas than 95% of counties in Texas

Compared to highways, non-highway routes see 15% fewer trucks by share.

At 66% lower than the state level, the non-highway congestion ratio of 5.5% signals easier movement on local roads.

Trip origins here have lower average income than 95% of counties in Texas. McMullen's median driver age is lower than 58% of counties in Texas.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

McMullen County vs. Texas Traffic Comparison

The average daily traffic per road sets McMullen County apart: 77% below the Texas average. Its truck share, by contrast, is 74% above.

MetricMcMullen CountyTexas averageDifference
Traffic1,5746,895-77.2%
Truck % (Total Traffic)17.0%9.8%+74.3%
Truck % (Highway)19.9%13.8%+44.7%
Avg. Travel Time48.0 min32.6 min+47.1%

How McMullen County compares

McMullen County moves the least traffic of its nearby counties

Set against the average of the 4 areas nearest to it, McMullen County moves 13.1% of the total daily travel and is 45.6% less congested; it has the quietest roads of the five. Quieter and more local than the areas around it on both counts: less traffic, and less of what there is arriving by truck.

McMullen 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
McMullen County1,57417.0%208,52548.0 min5.5%
Live Oak County, Texas2,87025.3%1,652,44442.7 min9.7%
La Salle County, Texas2,69132.1%1,304,40856.5 min9.1%
Atascosa County, Texas4,21819.2%2,081,32432.7 min13.3%
Frio County, Texas2,44626.0%1,339,86636.9 min7.9%
Texas average6,8959.8%N/A32.6 min16.4%

McMullen County ranked within Texas

Highway travel volume places McMullen County #226 of 227 in Texas - the bottom quarter of the state.

McMullen County ranked among 254 county-level areas in Texas (1 = highest); measures without data in every county rank a smaller field, down to 227.
MeasureMcMullen CountyTexas rank
Traffic volume (AADT)1,574#214 of 254
Highway vehicle-miles per day7,723#226 of 227
Truck share on highways19.9%#65 of 227
Highway trucks per day394#199 of 227
Average travel time48.0 min#21 of 254
Average driver income$51,104#242 of 254
Average driver age44.7 yrs#148 of 254

McMullen County ranks #21 of 254 on average travel time but #226 of 227 on highway travel volume - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in McMullen County, Texas

On their busiest stretches, the three busiest roads in McMullen County carry 3,368 vehicles a day on average, 2.1 times the typical road in the county (1,574).

TX 16 is the busiest road, at 5,021 vehicles a day, 557 of them trucks (11.1%). No other road comes close: River Street, in second place, carries 2,644. It tops the truck ranking too, with the most trucks.

Freight stands out on FM 1582: trucks are 31.2% of the traffic there, against 17.0% county-wide.

US 59 carries longer journeys than most roads here, with a median trip of 71.3 minutes against 48.0 county-wide.

FM 1582 draws drivers from wealthier areas: their neighborhoods average $65,888 in household income, 29% above the county's $51,104.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1TX 16Primary road · 5,021vehicles557trucks · 11.1%
Road class
Primary road
Congestion ratio
10.9%
Median trip time
43.0 min
Drivers’ median age
43.4 yrs
Drivers’ average income
$50,852

TX 16 carries 3.2 times the county average on its busiest stretch, where the median trip lasts 43.0 minutes.

2River StreetPrimary road · 2,644vehicles280trucks · 10.6%
Road class
Primary road
Congestion ratio
7.2%
Median trip time
42.6 min
Drivers’ median age
43.2 yrs
Drivers’ average income
$46,678

River Street carries 68% more than the county average on its busiest stretch, where the median trip lasts 42.6 minutes.

3Elm StreetPrimary road · 2,438vehicles300trucks · 12.3%
Road class
Primary road
Congestion ratio
5.5%
Median trip time
44.4 min
Drivers’ median age
41.6 yrs
Drivers’ average income
$50,673

At 55% more than the county average, Elm Street draws drivers from neighborhoods averaging $50,673 in household income.

4TX 72Primary road · 2,320vehicles339trucks · 14.6%
Road class
Primary road
Congestion ratio
5.4%
Median trip time
36.4 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$52,632

TX 72 is busy by local standards, at 47% more than the county average on its busiest stretch; trucks are 14.6% of it, below the county-wide 17.0%.

5TX 97Primary road · 2,258vehicles419trucks · 18.6%
Road class
Primary road
Congestion ratio
5.0%
Median trip time
57.9 min
Drivers’ median age
51.0 yrs
Drivers’ average income
$55,921

TX 97 peaks at 2,258 vehicles a day, 43% more than the county average; trucks are 18.6% of it, above the county-wide 17.0%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1TX 16Primary road · #1 by traffic5,021vehicles557trucks · 11.1%
2FM 1582Secondary road · 1,478vehicles461trucks · 31.2%
Road class
Secondary road
Median trip time
52.4 min
Drivers’ median age
40.6 yrs
Drivers’ average income
$65,888

FM 1582 is a quieter road: its busiest stretch carries 6% less than the county average; trucks are 31.2% of it, above the county-wide 17.0%.

3US 59Trunk road · 2,191vehicles436trucks · 19.9%
Road class
Trunk road
Congestion ratio
4.5%
Median trip time
71.3 min
Drivers’ median age
46.7 yrs
Drivers’ average income
$63,036

US 59 carries 39% more than the county average at its busiest, 436 of them trucks (19.9%, above the county-wide 17.0%).

4TX 97Primary road · #5 by traffic2,258vehicles419trucks · 18.6%
5TX 72Primary road · #4 by traffic2,320vehicles339trucks · 14.6%
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

McMullenDepartment 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 McMullen County

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

Need segment-level traffic data?

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