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Traffic heat map of Montgomery County, Texas: 1,340 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 45 and Eastex Freeway

Montgomery County, Texas Traffic Counts

Our Montgomery County, Texas traffic data covers 31,394 road segments over 1,340 road miles, with an average segment of just 225 ft. It ranks among the top 5 counties in Texas for average daily traffic. 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 Montgomery County, Texas

Traffic

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

vehicles per day9,598
Trucks

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

6.0%
Average travel time

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

31.7 min
Congestion ratio

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

19.2%
Drivers’ average age

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

43.8 yrs
Drivers’ average income

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

$107,958

A typical monitored road in Montgomery County, Texas sees 9,598 vehicles per day, while its 1,340 miles of monitored roads together handle 15,010,314 vehicle-miles traveled per day (≈5.5 billion per year). About 1 in 17 vehicles is a truck, fewer than the 1 in 10 across Texas.

Busier roads than 98% of counties in Texas

At 9,598 vehicles per day, the average monitored road in Montgomery carries 39% more traffic than the state average of 6,895, suggesting more demand on each road - more exposure for roadside businesses, and more competition for road space. Across the whole network, that travel is about 2.0% of Texas's statewide total. Montgomery carries more traffic than 98% of counties in Texas.

At 31.7 minutes, the average travel time matches the state level closely. On travel time, Montgomery runs shorter than 80% of counties in Texas.

At 17% higher than the state level, the 19.2% congestion ratio signals more pronounced congestion - crucial for traffic control improvement and logistics planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Montgomery County, Texas

Trafficvehicles per day29,622
Trucks8.6%
Average travel time40.2 min
Congestion ratio46.6%
Drivers’ average age43.0 yrs
Drivers’ average income$95,804

A significant share of driving in Montgomery County, Texas, 35% of vehicle-miles, happens on highways. The average highway carries 29,622 vehicles per day, 219% more than the average non-highway road in the same area, which carries 9,283 vehicles per day.

With 13% of the road miles (169 miles in 485 segments), highways punch above their length, carrying 5,178,967 vehicle-miles traveled per day (≈1.9 billion per year).

96% of counties in Texas move less traffic on their highways.

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.

Montgomery's highway truck share (8.6%) is lower than 98% of counties in Texas. Montgomery's highway truck count is higher than 80% of counties in Texas, at roughly 2,553 trucks per day.

non-highway traffic icon

Non-highway Traffic in Montgomery County, Texas

Trafficvehicles per day9,283
Trucks4.6%
Average travel time31.6 min
Congestion ratio18.8%
Drivers’ average age44.0 yrs
Drivers’ average income$111,972

Local roads carry more than half of all travel in Montgomery County, Texas (65% of vehicle-miles). On the average non-highway road, that comes to 9,283 vehicles per day.

Local roads make up 87% of the monitored road miles (1,171 miles in 30,909 segments) but carry less than their share of travel: 9,831,346 vehicle-miles traveled per day (≈3.6 billion per year). About 1 in 22 vehicles on non-highway roads is a truck (4.6%).

Drivers from higher-income areas than 97% of counties in Texas

The concentration of trucks on non-highway roads is 46% lower than on highways.

At 17% higher than the state level, the non-highway congestion ratio of 18.8% signals more friction on local roads.

97% of counties in Texas see lower average driver income among trip origins than Montgomery. Montgomery's median driver age is lower than 65% of counties in Texas.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Montgomery County, Texas, the peak hour concentrates about 7% of the day's traffic.

Montgomery County vs. Texas Traffic Comparison

Of the four measures, average daily traffic per road differs most: Montgomery County runs 39% above the Texas average. Its truck share, by contrast, is 38% below.

MetricMontgomery CountyTexas averageDifference
Traffic9,5986,895+39.2%
Truck % (Total Traffic)6.0%9.8%-38.5%
Truck % (Highway)8.6%13.8%-37.3%
Avg. Travel Time31.7 min32.6 min-2.8%

How Montgomery County compares

Montgomery County has the lowest truck share of its nearby counties

Against the 4 nearest areas, Montgomery County carries 69.9% more traffic on a typical road and is 39.6% more congested; it has the second busiest roads of the five. It is where traffic concentrates in this corner of the map - the local bottleneck, with more vehicles per road AND less room to absorb them.

Montgomery 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
Montgomery County9,5986.0%15,010,31431.7 min19.2%
San Jacinto County, Texas3,14811.5%1,034,61734.8 min8.9%
Walker County, Texas5,34113.5%2,813,82433.1 min12.1%
Grimes County, Texas4,0249.6%1,425,88640.9 min13.6%
Harris County, Texas10,0806.8%107,067,37733.1 min20.4%
Texas average6,8959.8%N/A32.6 min16.4%

Montgomery County ranked within Texas

Average daily traffic volume places Montgomery County #5 of 254 in Texas - the top quarter of the state.

Montgomery County ranked among 254 county-level areas in Texas (1 = highest); measures without data in every county rank a smaller field, down to 227.
MeasureMontgomery CountyTexas rank
Traffic volume (AADT)9,598#5 of 254
Highway vehicle-miles per day5,178,967#10 of 227
Truck share on highways8.6%#223 of 227
Highway trucks per day2,553#46 of 227
Average travel time31.7 min#203 of 254
Average driver income$107,958#8 of 254
Average driver age43.8 yrs#166 of 254

Montgomery County ranks #10 of 227 on highway travel volume but #223 of 227 on truck share on highways. It carries some of the heaviest highway traffic in Texas, but very little of it is freight - this is commuter and local car volume, not through-trucking.

Busiest roads in Montgomery County, Texas

On their busiest stretches, the three busiest roads in Montgomery County carry 74,149 vehicles a day on average, 7.7 times the typical road in the county (9,598).

I 45 is the busiest road, at 101,283 vehicles a day, 5,397 of them trucks (5.3%). Eastex Freeway carries the most trucks, 6,908 a day (9.3% of its traffic), although it ranks #2 for all traffic.

Trips using Eastex Freeway are long: a median of 42.1 minutes against 31.7 county-wide, the mark of a through route.

I 45 North Frontage Road is busy with cars rather than freight: only 2.8% of its traffic is trucks, against 6.0% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 45Motorway · 101,283vehicles5,397trucks · 5.3%
Road class
Motorway
Congestion ratio
80.5%
Median trip time
38.9 min
Drivers’ median age
42.7 yrs
Drivers’ average income
$106,782

I 45 is one of the more congested roads here: trips take 81% longer than at free-flow speed, against 19% county-wide.

2Eastex FreewayMotorway · 74,438vehicles6,908trucks · 9.3%
Road class
Motorway
Congestion ratio
53.1%
Median trip time
42.1 min
Drivers’ median age
42.5 yrs
Drivers’ average income
$81,100

Delays build on Eastex Freeway: its congestion ratio of 53% over free-flow time is well above the county's 19%.

3I 45 North Frontage RoadSecondary road · 46,726vehicles1,296trucks · 2.8%
Road class
Secondary road
Congestion ratio
33.6%
Median trip time
30.1 min
Drivers’ median age
43.2 yrs
Drivers’ average income
$115,052

I 45 North Frontage Road carries 4.9 times the county average on its busiest stretch, where the median trip lasts 30.1 minutes.

4TX 105Primary road · 43,034vehicles2,510trucks · 5.8%
Road class
Primary road
Congestion ratio
33.1%
Median trip time
34.0 min
Drivers’ median age
44.6 yrs
Drivers’ average income
$99,133

At 4.5 times the county average, TX 105 draws drivers from neighborhoods averaging $99,133 in household income.

5Needham RoadPrimary road · 42,802vehicles2,427trucks · 5.7%
Road class
Primary road
Congestion ratio
48.7%
Median trip time
28.8 min
Drivers’ median age
43.1 yrs
Drivers’ average income
$106,672

The busiest stretch of Needham Road carries 4.5 times the county average; trucks are 5.7% of it, below the county-wide 6.0%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Eastex FreewayMotorway · #2 by traffic74,438vehicles6,908trucks · 9.3%
2I 45Motorway · #1 by traffic101,283vehicles5,397trucks · 5.3%
3TX 105Primary road · #4 by traffic43,034vehicles2,510trucks · 5.8%
4Needham RoadPrimary road · #5 by traffic42,802vehicles2,427trucks · 5.7%
5Tomball TollwayMotorway · 27,513vehicles1,929trucks · 7.0%
Road class
Motorway
Congestion ratio
31.9%
Median trip time
40.4 min
Drivers’ median age
44.8 yrs
Drivers’ average income
$113,944

On its busiest stretch, Tomball Tollway carries 2.9 times the county average; trucks are 7.0% of it, above the county-wide 6.0%.

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

MontgomeryDepartment 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 Montgomery County

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

Need segment-level traffic data?

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