Need segment-level traffic data?

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

Get insights →
Traffic heat map of Starr County, Texas: 276 miles of roads shaded from blue (light) to red (heavy traffic), busiest on US 83 and Main Street

Starr County, Texas Traffic Counts

TrafficZoom tracks traffic on 276 road miles in Starr County, Texas, divided into 2,319 segments averaging 628 ft. Its busiest road, US 83, carries 29,595 vehicles a day, 4.3 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
Find my place
total traffic icon

Total Traffic Volume & Performance in Starr County, Texas

Traffic

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

vehicles per day6,806
Trucks

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

8.2%
Average travel time

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

29.6 min
Congestion ratio

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

13.2%
Drivers’ average age

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

41.1 yrs
Drivers’ average income

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

$45,859

Our data shows 6,806 vehicles per day on the average road in Starr County, Texas, and 1,084,406 vehicle-miles traveled per day (≈396 million per year) across its 276 miles of monitored roads. Trucks are a smaller part of the mix than across Texas: 8.2% against 9.8%.

Shorter trips than 97% of counties in Texas

At 6,806 vehicles per day, the average road in Starr tracks closely with the state average of 6,895 vehicles per day. Across the whole network, that travel is about 0.1% of Texas's statewide total. Starr carries more traffic than 88% of counties in Texas.

The average trip takes 29.6 minutes, 9% lower than the state level. 97% of counties in Texas have a longer average travel time than Starr's 29.6 minutes.

The congestion ratio of 13.2% is 19% lower, pointing to smoother traffic flow than the state level - crucial for traffic control improvement and logistics planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Starr County, Texas

Trafficvehicles per day19,438
Trucks8.6%
Average travel time34.7 min
Congestion ratio28.0%
Drivers’ average age41.2 yrs
Drivers’ average income$46,117

Most travel in Starr County, Texas happens on highways, 72% of all vehicle-miles. The average highway carries 19,438 vehicles per day, 793% more than the average non-highway road in the same area, which carries 2,176 vehicles per day.

That comes from just 21% of the monitored road miles: 58 miles in 622 segments, carrying 778,195 vehicle-miles traveled per day (≈284 million per year).

By highway travel volume, Starr outranks 61% of counties in Texas.

Lower highway truck share than 98% of counties in Texas

Highway truck concentration here runs 37% lower than the state average, at 8.6%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

98% of counties in Texas see a higher highway truck share than Starr's 8.6%. 51% of counties in Texas see more highway trucks per day than Starr's roughly 1,679.

non-highway traffic icon

Non-highway Traffic in Starr County, Texas

Trafficvehicles per day2,176
Trucks7.2%
Average travel time27.7 min
Congestion ratio7.8%
Drivers’ average age39.9 yrs
Drivers’ average income$45,154

At 28% of vehicle-miles, local roads carry a smaller share of the traffic in Starr County, Texas than highways. On the average non-highway road, that comes to 2,176 vehicles per day.

Spread over 218 miles and 1,697 segments, 79% of the road network, local roads carry a lighter load per mile: 306,211 vehicle-miles traveled per day (≈112 million per year). Trucks make up 7.2% of non-highway traffic, about 1 in 14 vehicles.

Drivers from lower-income areas than 98% of counties in Texas

Non-highway roads carry a truck concentration that's 17% lower than the highway network.

At 51% lower than the state level, the non-highway congestion ratio of 7.8% signals easier movement on local roads.

98% of counties in Texas see higher average driver income among trip origins than Starr. Starr's median driver age is lower than 88% of counties in Texas.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and PM peak 4:00 PM–7:00 PM, with volumes reaching approximately 66% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 9% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
Traffic is nearly flat through the year: even March–May, the busiest stretch, runs only +2% versus the annual average.
Lowest month:
January is the quietest month, with volumes -3% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Starr County, Texas, the peak hour concentrates about 7% of the day's traffic, and traffic stays steady through the year (+2% in high season).

Starr County vs. Texas Traffic Comparison

The highway truck share sets Starr County apart: 37% below the Texas average. Its truck share is also 16% below.

MetricStarr CountyTexas averageDifference
Traffic6,8066,895-1.3%
Truck % (Total Traffic)8.2%9.8%-15.9%
Truck % (Highway)8.6%13.8%-37.2%
Avg. Travel Time29.6 min32.6 min-9.3%

How Starr County compares

Starr County has the shortest trips among its nearby counties

Compared with its 4 closest neighbours, Starr County moves 25.1% of the total daily travel and sees 28.3% shorter typical trips; it has the second busiest roads of the five. The mirror image of a big network: fewer road-miles carrying heavier traffic, so the travel here is concentrated rather than spread out.

Starr 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
Starr County6,8068.2%1,084,40629.6 min13.2%
Zapata County, Texas3,28613.3%292,01233.0 min8.1%
Hidalgo County, Texas10,7886.0%16,185,32234.1 min26.6%
Jim Hogg County, Texas1,47514.9%117,36739.3 min8.4%
Brooks County, Texas3,28930.2%665,97858.7 min10.1%
Texas average6,8959.8%N/A32.6 min16.4%

Starr County ranked within Texas

Starr County sits in the bottom quarter of the Texas field on average driver income, at #250 of 254.

Starr County ranked among 254 county-level areas in Texas (1 = highest); measures without data in every county rank a smaller field, down to 227.
MeasureStarr CountyTexas rank
Traffic volume (AADT)6,806#32 of 254
Highway vehicle-miles per day778,195#90 of 227
Truck share on highways8.6%#222 of 227
Highway trucks per day1,679#117 of 227
Average travel time29.6 min#247 of 254
Average driver income$45,859#250 of 254
Average driver age41.1 yrs#223 of 254

The two ends of this table sit far apart: #32 of 254 on average daily traffic volume, against #250 of 254 on average driver income.

Busiest roads in Starr County, Texas

The three busiest roads in Starr County average 27,121 vehicles a day, 4.0 times the county average of 6,806 across all its monitored roads.

US 83 leads with 29,595 vehicles a day, 1,860 of them trucks (6.3%). It tops the truck ranking too, with the most trucks.

2nd Street carries longer journeys than most roads here, with a median trip of 39.9 minutes against 29.6 county-wide.

Main Street is busy with cars rather than freight: only 4.1% of its traffic is trucks, against 8.2% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1US 83Trunk road · 29,595vehicles1,860trucks · 6.3%
Road class
Trunk road
Congestion ratio
35.3%
Median trip time
36.6 min
Drivers’ median age
41.2 yrs
Drivers’ average income
$48,586

At 4.3 times the county average, US 83 draws drivers from neighborhoods averaging $48,586 in household income.

2Main StreetTrunk road · 28,655vehicles1,166trucks · 4.1%
Road class
Trunk road
Congestion ratio
38.2%
Median trip time
32.7 min
Drivers’ median age
41.4 yrs
Drivers’ average income
$48,690

Delays build on Main Street: its congestion ratio of 38% over free-flow time is well above the county's 13%.

3Grant StreetTrunk road · 23,114vehicles1,814trucks · 7.8%
Road class
Trunk road
Congestion ratio
26.9%
Median trip time
31.1 min
Drivers’ median age
41.1 yrs
Drivers’ average income
$39,883

The busiest stretch of Grant Street carries 3.4 times the county average; trucks are 7.8% of it, in line with the county-wide 8.2%.

42nd StreetTrunk road · 16,365vehicles780trucks · 4.8%
Road class
Trunk road
Congestion ratio
37.1%
Median trip time
39.9 min
Drivers’ median age
42.2 yrs
Drivers’ average income
$49,801

Travel on 2nd Street's busiest stretch runs 37% over free-flow time, against 13% across the county, so expect slower peak hours.

5Eisenhower StreetTertiary road · 8,511vehicles334trucks · 3.9%
Road class
Tertiary road
Congestion ratio
19.4%
Median trip time
28.1 min
Drivers’ median age
39.6 yrs
Drivers’ average income
$44,165

Eisenhower Street is busy by local standards, at 25% more than the county average on its busiest stretch; trucks are 3.9% of it, below the county-wide 8.2%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 83Trunk road · #1 by traffic29,595vehicles1,860trucks · 6.3%
2Grant StreetTrunk road · #3 by traffic23,114vehicles1,814trucks · 7.8%
3Main StreetTrunk road · #2 by traffic28,655vehicles1,166trucks · 4.1%
42nd StreetTrunk road · #4 by traffic16,365vehicles780trucks · 4.8%
5Garcia StreetTrunk road · 6,876vehicles386trucks · 5.6%
Road class
Trunk road
Congestion ratio
15.7%
Median trip time
35.2 min
Drivers’ median age
41.4 yrs
Drivers’ average income
$38,184

Garcia Street is a quieter road: its busiest stretch carries about the same as the county average; trucks are 5.6% of it, below the county-wide 8.2%.

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

StarrDepartment 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.
link arrow icon
Data current as of:
Q3 2026

Explore further

TrafficZoom platform

— street-level analytics and custom corridor reports.

Map AI

— demographics, housing and mobility data.

Counties near Starr County

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

Need segment-level traffic data?

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