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Traffic heat map of Galveston County, Texas: 661 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Gulf Freeway and Egret Bay Boulevard

Galveston County, Texas Traffic Counts

Its busiest road, Gulf Freeway, carries 114,550 vehicles a day, 12.8 times the average road. This page breaks down traffic in Galveston County, Texas across 661 miles of monitored roads split into 17,588 segments, using multi-sourced mobile and sensor data. It goes beyond raw counts to truck flow, congestion and who is driving, so site selection and route planning rest on evidence.
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 Galveston County, Texas

Traffic

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

vehicles per day8,937
Trucks

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

6.6%
Average travel time

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

32.0 min
Congestion ratio

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

21.8%
Drivers’ average age

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

44.6 yrs
Drivers’ average income

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

$102,248

The average monitored road in Galveston County, Texas carries 8,937 vehicles per day. Across its 661 miles of monitored roads, that adds up to 6,290,278 vehicle-miles traveled per day (≈2.3 billion per year). Trucks are a smaller part of the mix than across Texas: 6.6% against 9.8%.

Busier roads than 97% of counties in Texas

At 8,937 vehicles per day, the average monitored road in Galveston carries 30% more traffic than the state average of 6,895, suggesting more demand on each road - a busier backdrop for retail sites, at the cost of slower access. Network-wide, Galveston accounts for about 0.9% of Texas's statewide total of vehicle-miles. Galveston carries more traffic than 97% of counties in Texas.

The average trip takes 32.0 minutes, on par with the state level. 77% of counties in Texas have a longer average travel time than Galveston's 32.0 minutes.

The congestion ratio of 21.8% is 33% higher, pointing to more pronounced congestion than the state level - expect slower peak-hour deliveries and less predictable arrival times.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Galveston County, Texas

Trafficvehicles per day23,091
Trucks10.5%
Average travel time38.3 min
Congestion ratio31.6%
Drivers’ average age44.4 yrs
Drivers’ average income$90,432

Highways carry a significant share of travel in Galveston County, Texas: 33% of all vehicle-miles. The average highway carries 23,091 vehicles per day, 173% more than the average non-highway road in the same area, which carries 8,447 vehicles per day.

With 13% of the road miles (85 miles in 588 segments), highways punch above their length, carrying 2,090,223 vehicle-miles traveled per day (≈763 million per year).

87% of counties in Texas move less traffic on their highways.

Lower highway truck share than 89% of counties in Texas

Highway truck concentration here runs 24% lower than the state average, at 10.5%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

Galveston's highway truck share (10.5%) is lower than 89% of counties in Texas. Galveston's highway truck count is higher than 79% of counties in Texas, at roughly 2,422 trucks per day.

non-highway traffic icon

Non-highway Traffic in Galveston County, Texas

Trafficvehicles per day8,447
Trucks4.7%
Average travel time31.7 min
Congestion ratio21.5%
Drivers’ average age44.7 yrs
Drivers’ average income$106,035

Local roads carry more than half of all travel in Galveston County, Texas (67% of vehicle-miles). The average non-highway road carries 8,447 vehicles per day.

Spread over 576 miles and 17,000 segments, 87% of the road network, local roads carry a lighter load per mile: 4,200,056 vehicle-miles traveled per day (≈1.5 billion per year). About 1 in 22 vehicles on non-highway roads is a truck (4.7%).

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

Compared to highways, non-highway routes see 56% fewer trucks by share.

Non-highway congestion (21.5%) runs 34% higher than the state average, pointing to slower local traffic flow.

Galveston's average driver income is higher than 95% of counties in Texas. Galveston's median driver age is lower than 58% 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 73% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 16% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +6% versus the annual average.
Lowest month:
January is the quietest month, with volumes -10% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Galveston County, Texas, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +6% in high season.

Galveston County vs. Texas Traffic Comparison

The truck share sets Galveston County apart: 33% below the Texas average. Its average daily traffic per road, by contrast, is 30% above.

MetricGalveston CountyTexas averageDifference
Traffic8,9376,895+29.6%
Truck % (Total Traffic)6.6%9.8%-32.5%
Truck % (Highway)10.5%13.8%-23.7%
Avg. Travel Time32.0 min32.6 min-2.1%

How Galveston County compares

Galveston County against nearby counties

Set against the average of the 4 areas nearest to it, Galveston County moves 19.2% of the total daily travel; 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.

Galveston 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
Galveston County8,9376.6%6,290,27832.0 min21.8%
Chambers County, Texas6,03617.1%3,070,98136.2 min16.6%
Brazoria County, Texas5,4776.9%7,780,59532.1 min15.2%
Harris County, Texas10,0806.8%107,067,37733.1 min20.4%
Fort Bend County, Texas7,1085.5%12,825,63429.8 min16.0%
Texas average6,8959.8%N/A32.6 min16.4%

Galveston County ranked within Texas

Galveston County sits in the top quarter of the Texas field on average daily traffic volume, at #8 of 254.

Galveston County ranked among 254 county-level areas in Texas (1 = highest); measures without data in every county rank a smaller field, down to 227.
MeasureGalveston CountyTexas rank
Traffic volume (AADT)8,937#8 of 254
Highway vehicle-miles per day2,090,223#30 of 227
Truck share on highways10.5%#202 of 227
Highway trucks per day2,422#48 of 227
Average travel time32.0 min#195 of 254
Average driver income$102,248#14 of 254
Average driver age44.6 yrs#149 of 254

The two ends of this table sit far apart: #8 of 254 on average daily traffic volume, against #202 of 227 on truck share on highways.

Busiest roads in Galveston County, Texas

The three busiest roads in Galveston County average 62,512 vehicles a day, 7.0 times the county average of 8,937 across all its monitored roads.

Gulf Freeway is the busiest road, at 114,550 vehicles a day, 10,841 of them trucks (9.5%). That is 3.0 times the next road, Egret Bay Boulevard (38,157). It also carries the most trucks.

Trucks make up 13.7% of traffic on 36th Street, against 6.6% across all roads in the county.

The truck ranking looks different from the traffic one, sharing just 2 of its 5 roads.

Gulf Freeway carries longer journeys than most roads here, with a median trip of 43.1 minutes against 32.0 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Gulf FreewayMotorway · 114,550vehicles10,841trucks · 9.5%
Road class
Motorway
Congestion ratio
58.4%
Median trip time
43.1 min
Drivers’ median age
43.9 yrs
Drivers’ average income
$102,462

Travel on Gulf Freeway's busiest stretch runs 58% over free-flow time, against 22% across the county, so expect slower peak hours.

2Egret Bay BoulevardPrimary road · 38,157vehicles1,170trucks · 3.1%
Road class
Primary road
Congestion ratio
28.9%
Median trip time
33.4 min
Drivers’ median age
44.8 yrs
Drivers’ average income
$117,756

Egret Bay Boulevard carries 4.3 times the county average at its busiest, 1,170 of them trucks (3.1%, below the county-wide 6.6%).

3FM 270Primary road · 34,827vehicles1,236trucks · 3.5%
Road class
Primary road
Congestion ratio
23.4%
Median trip time
33.7 min
Drivers’ median age
44.7 yrs
Drivers’ average income
$118,183

FM 270 carries 3.9 times the county average on its busiest stretch, where the median trip lasts 33.7 minutes.

436th StreetTrunk road · 34,386vehicles4,714trucks · 13.7%
Road class
Trunk road
Congestion ratio
38.1%
Median trip time
34.4 min
Drivers’ median age
44.3 yrs
Drivers’ average income
$78,224

At 3.8 times the county average, 36th Street draws drivers from neighborhoods averaging $78,224 in household income.

5FM 528Primary road · 31,994vehicles808trucks · 2.5%
Road class
Primary road
Congestion ratio
85.2%
Median trip time
31.6 min
Drivers’ median age
44.2 yrs
Drivers’ average income
$126,262

FM 528 is one of the more congested roads here: trips take 85% longer than at free-flow speed, against 22% county-wide.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Gulf FreewayMotorway · #1 by traffic114,550vehicles10,841trucks · 9.5%
236th StreetTrunk road · #4 by traffic34,386vehicles4,714trucks · 13.7%
3Emmett F Lowry ExpresswayMotorway · 29,206vehicles2,524trucks · 8.6%
Road class
Motorway
Congestion ratio
31.9%
Median trip time
31.8 min
Drivers’ median age
44.2 yrs
Drivers’ average income
$79,791

The busiest stretch of Emmett F Lowry Expressway carries 3.3 times the county average; trucks are 8.6% of it, above the county-wide 6.6%.

4TX 146Trunk road · 30,667vehicles2,047trucks · 6.7%
Road class
Trunk road
Congestion ratio
30.9%
Median trip time
30.9 min
Drivers’ median age
44.2 yrs
Drivers’ average income
$107,668

On its busiest stretch, TX 146 carries 3.4 times the county average; trucks are 6.7% of it, in line with the county-wide 6.6%.

5Bayport BoulevardTrunk road · 22,659vehicles1,745trucks · 7.7%
Road class
Trunk road
Congestion ratio
48.9%
Median trip time
30.2 min
Drivers’ median age
44.1 yrs
Drivers’ average income
$116,199

Bayport Boulevard peaks at 22,659 vehicles a day, 2.5 times the county average; trucks are 7.7% of it, above the county-wide 6.6%.

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

GalvestonDepartment 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 Galveston County

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

Need segment-level traffic data?

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