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Traffic heat map of Miller County, Arkansas: 450 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Purple Heart Trail and North Loop

Miller County, Arkansas Traffic Counts

Its busiest road, Purple Heart Trail, carries 32,485 vehicles a day, 11.6 times the average road. This page breaks down traffic in Miller County, Arkansas across 450 miles of monitored roads split into 3,719 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 Volume & Performance in Miller County, Arkansas

Traffic

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

vehicles per day2,804
Trucks

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

16.5%
Average travel time

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

29.9 min
Congestion ratio

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

7.9%
Drivers’ average age

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

46.9 yrs
Drivers’ average income

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

$58,525

The average monitored road in Miller County, Arkansas carries 2,804 vehicles per day. Across its 450 miles of monitored roads, that adds up to 1,503,296 vehicle-miles traveled per day (≈549 million per year). At 16.5%, the truck share runs above the 11.6% across Arkansas: about 1 in 6 vehicles.

Shorter trips than 87% of counties in Arkansas

Miller's average daily traffic volume is 43% lower than the state average - 2,804 vehicles per day against 4,932 - suggesting less traffic load per road - less drive-by exposure for retail, but easier access for deliveries. In total volume terms, its road network carries about 1.7% of Arkansas's statewide total of vehicle-miles. Miller carries less traffic than 53% of counties in Arkansas.

The average trip takes 29.9 minutes, 5% lower than the state level. On travel time, Miller runs shorter than 87% of counties in Arkansas.

At 38% lower than the state level, the 7.9% congestion ratio signals smoother traffic flow - travel times are easy to plan around for scheduled deliveries.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Miller County, Arkansas

Trafficvehicles per day6,412
Trucks21.5%
Average travel time40.0 min
Congestion ratio10.9%
Drivers’ average age47.0 yrs
Drivers’ average income$59,522

Highways carry more than half of all travel in Miller County, Arkansas (68% of vehicle-miles). The average highway carries 6,412 vehicles per day, 171% more than the average non-highway road in the same area, which carries 2,369 vehicles per day.

With 34% of the road miles (154 miles in 400 segments), highways punch above their length, carrying 1,024,885 vehicle-miles traveled per day (≈374 million per year).

By highway travel volume, Miller outranks 84% of counties in Arkansas.

Higher highway truck share than 81% of counties in Arkansas

Highway truck concentration here runs 26% higher than the state average, at 21.5%. Highways here lean toward freight, so highway access is a real asset for logistics operators.

By truck concentration, highways here outrank 81% of counties in Arkansas. 65% of counties in Arkansas see fewer highway trucks per day than Miller's roughly 1,377.

non-highway traffic icon

Non-highway Traffic in Miller County, Arkansas

Trafficvehicles per day2,369
Trucks5.8%
Average travel time28.7 min
Congestion ratio7.6%
Drivers’ average age46.9 yrs
Drivers’ average income$57,581

A significant share of driving in Miller County, Arkansas, 32% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 2,369 vehicles per day.

Local roads make up 66% of the monitored road miles (296 miles in 3,319 segments) but carry less than their share of travel: 478,411 vehicle-miles traveled per day (≈175 million per year). Trucks make up 5.8% of non-highway traffic, about 1 in 17 vehicles.

Local congestion 39% below the Arkansas average

Non-highway roads carry a truck concentration that's 73% lower than the highway network.

The non-highway congestion ratio of 7.6% is 39% lower than the state level, suggesting more efficient local mobility than the state average.

Miller's average driver income is higher than 62% of counties in Arkansas. 59% of counties in Arkansas have an older driver population than Miller.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Miller County vs. Arkansas Traffic Comparison

Of the four measures, average daily traffic per road differs most: Miller County runs 43% below the Arkansas average. Its truck share, by contrast, is 42% above.

MetricMiller CountyArkansas averageDifference
Traffic2,8044,932-43.2%
Truck % (Total Traffic)16.5%11.6%+41.9%
Truck % (Highway)21.5%17.1%+25.6%
Avg. Travel Time29.9 min31.6 min-5.4%

How Miller County compares

Miller County against nearby counties

Nothing in this table sets Miller County sharply apart from the 4 areas nearest to it, though it has the third busiest roads of the five.

Miller County and the 4 nearest county-level areas by centroid distance, with the Arkansas average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Miller County2,80416.5%1,503,29629.9 min7.9%
Lafayette County, Arkansas1,90411.3%214,19340.9 min5.6%
Hempstead County, Arkansas2,80517.9%1,309,89332.1 min8.7%
Cass County, Texas2,13812.4%839,04130.8 min6.3%
Bowie County, Texas5,09713.8%2,939,97331.4 min13.8%
Arkansas average4,93211.6%N/A31.6 min12.8%

Miller County ranked within Arkansas

Average travel time places Miller County #65 of 75 in Arkansas - the bottom quarter of the state.

Miller County ranked among 75 county-level areas in Arkansas (1 = highest); measures without data in every county rank a smaller field, down to 64.
MeasureMiller CountyArkansas rank
Traffic volume (AADT)2,804#40 of 75
Highway vehicle-miles per day1,024,885#11 of 64
Truck share on highways21.5%#13 of 64
Highway trucks per day1,377#23 of 64
Average travel time29.9 min#65 of 75
Average driver income$58,525#29 of 75
Average driver age46.9 yrs#44 of 75

Miller County ranks #11 of 64 on highway travel volume but #65 of 75 on average travel time - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Miller County, Arkansas

Traffic concentrates on a few corridors: the three busiest roads average 19,956 vehicles a day, against 2,804 on the average road in Miller County.

Purple Heart Trail is the busiest road, at 32,485 vehicles a day, 8,015 of them trucks (24.7%). That is 2.1 times the next road, North Loop (15,374). It also carries the most trucks.

Trips using W. Greg Wall, P.E. Memorial Highway are long: a median of 50.6 minutes against 29.9 county-wide, the mark of a through route.

Trucks make up 25.9% of traffic on North Loop, against 16.5% across all roads in the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Purple Heart TrailMotorway · 32,485vehicles8,015trucks · 24.7%
Road class
Motorway
Congestion ratio
28.1%
Median trip time
42.5 min
Drivers’ median age
47.6 yrs
Drivers’ average income
$57,931

Delays build on Purple Heart Trail: its congestion ratio of 28% over free-flow time is well above the county's 8%.

2North LoopMotorway · 15,374vehicles3,978trucks · 25.9%
Road class
Motorway
Congestion ratio
14.7%
Median trip time
37.0 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$63,357

North Loop carries 5.5 times the county average on its busiest stretch, where the median trip lasts 37.0 minutes.

3W. Greg Wall, P.E. Memorial HighwayMotorway · 12,010vehicles2,862trucks · 23.8%
Road class
Motorway
Median trip time
50.6 min
Drivers’ median age
50.3 yrs
Drivers’ average income
$54,705

W. Greg Wall, P.E. Memorial Highway peaks at 12,010 vehicles a day, 4.3 times the county average; trucks are 23.8% of it, above the county-wide 16.5%.

4US 71Primary road · 11,256vehicles536trucks · 4.8%
Road class
Primary road
Congestion ratio
12.8%
Median trip time
28.9 min
Drivers’ median age
46.0 yrs
Drivers’ average income
$48,746

US 71 carries 4.0 times the county average at its busiest, 536 of them trucks (4.8%, below the county-wide 16.5%).

5Arkansas BoulevardSecondary road · 10,949vehicles305trucks · 2.8%
Road class
Secondary road
Congestion ratio
20.4%
Median trip time
28.4 min
Drivers’ median age
46.4 yrs
Drivers’ average income
$55,627

Travel on Arkansas Boulevard's busiest stretch runs 20% over free-flow time, against 8% across the county, so expect slower peak hours.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Purple Heart TrailMotorway · #1 by traffic32,485vehicles8,015trucks · 24.7%
2North LoopMotorway · #2 by traffic15,374vehicles3,978trucks · 25.9%
3W. Greg Wall, P.E. Memorial HighwayMotorway · #3 by traffic12,010vehicles2,862trucks · 23.8%
4Hickerson FreewayMotorway · 7,833vehicles1,281trucks · 16.4%
Road class
Motorway
Congestion ratio
4.9%
Median trip time
33.9 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$59,486

Hickerson Freeway carries 2.8 times the county average on its busiest stretch, where the median trip lasts 33.9 minutes.

5US 59Trunk road · 8,832vehicles1,200trucks · 13.6%
Road class
Trunk road
Median trip time
47.3 min
Drivers’ median age
47.0 yrs
Drivers’ average income
$63,298

US 59 carries through traffic: the median trip using it lasts 47.3 minutes, against 29.9 for the county.

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

MillerDepartment 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 Miller County

The same traffic breakdown for the areas closest to Miller County, Arkansas.

Need segment-level traffic data?

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