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Traffic heat map of La Paz County, Arizona: 465 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Pearl Harbor Memorial Highway

La Paz County, Arizona Traffic Counts

How busy are the roads of La Paz County, Arizona? We measure 465 road miles, divided into 2,399 segments, with multi-sourced, cross-verified mobile and sensor data. Its highways carry one of the top 3 truck shares of any county in Arizona. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
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 La Paz County, Arizona

Traffic

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

vehicles per day3,896
Trucks

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

23.5%
Average travel time

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

40.9 min
Congestion ratio

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

8.4%
Drivers’ average age

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

55.8 yrs
Drivers’ average income

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

$59,204

A typical monitored road in La Paz County, Arizona sees 3,896 vehicles per day, while its 465 miles of monitored roads together handle 2,850,962 vehicle-miles traveled per day (≈1.0 billion per year). About 1 in 4 vehicles is a truck, well above the 9.6% across Arizona - a freight-heavy mix.

Longer trips than 93% of counties in Arizona

At 3,896 vehicles per day, the average monitored road in La Paz carries 61% less traffic than the state average of 10,009, suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. In total volume terms, its road network carries about 1.6% of Arizona's statewide total of vehicle-miles. 86% of counties in Arizona see more traffic than La Paz's 3,896 vehicles per day.

Journey times run 24% higher than the state level, at 40.9 minutes on average. On travel time, La Paz runs longer than 93% of counties in Arizona.

The congestion ratio of 8.4% is 53% lower, pointing to smoother traffic flow than the state level - delays are rare enough to plan travel times almost to the minute.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in La Paz County, Arizona

Trafficvehicles per day7,716
Trucks26.1%
Average travel time45.4 min
Congestion ratio15.7%
Drivers’ average age55.3 yrs
Drivers’ average income$61,224

The vast majority of driving in La Paz County, Arizona happens on highways: 83% of all vehicle-miles. The average highway carries 7,716 vehicles per day, 216% more than the average non-highway road in the same area, which carries 2,440 vehicles per day.

With 52% of the road miles (244 miles in 662 segments), highways punch above their length, carrying 2,363,590 vehicle-miles traveled per day (≈863 million per year).

A major freight corridor

Highway truck concentration here runs 87% higher than the state average, at 26.1%. That marks La Paz as a major freight corridor, where highway access is what logistics operators compete on.

By truck concentration, highways here outrank 92% of counties in Arizona. La Paz's highway truck count is higher than 77% of counties in Arizona, at roughly 2,015 trucks per day.

non-highway traffic icon

Non-highway Traffic in La Paz County, Arizona

Trafficvehicles per day2,440
Trucks10.7%
Average travel time39.1 min
Congestion ratio5.7%
Drivers’ average age59.7 yrs
Drivers’ average income$51,826

At 17% of vehicle-miles, local roads carry a smaller share of the traffic in La Paz County, Arizona than highways. The average non-highway road carries 2,440 vehicles per day.

Local roads make up 48% of the monitored road miles (221 miles in 1,737 segments) but carry less than their share of travel: 487,372 vehicle-miles traveled per day (≈178 million per year). The truck share on non-highway roads is 10.7%.

Drivers from lower-income areas than 93% of counties in Arizona

Non-highway roads carry a truck concentration that's 59% lower than the highway network.

At 69% lower than the state level, the non-highway congestion ratio of 5.7% signals easier movement on local roads.

93% of counties in Arizona see higher average driver income among trip origins than La Paz. The driver population here skews older than 79% of counties in Arizona.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 9:00 AM–12:00 PM and a long afternoon plateau from 1:00 PM to 5:00 PM, with volumes reaching approximately 60% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 10% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
January–March is the high season, with volumes +22% versus the annual average.
Lowest month:
August is the quietest month, with volumes -26% versus the annual average - an unusual summer low, when most places are at their busiest.

Data Finding: Hourly & Seasonal Patterns

In La Paz County, Arizona, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +22% in high season.

La Paz County vs. Arizona Traffic Comparison

Of the four measures, truck share differs most: La Paz County runs 144% above the Arizona average. Its highway truck share is also 87% above.

MetricLa Paz CountyArizona averageDifference
Traffic3,89610,009-61.1%
Truck % (Total Traffic)23.5%9.6%+144.1%
Truck % (Highway)26.1%13.9%+87.2%
Avg. Travel Time40.9 min32.9 min+24.1%

How La Paz County compares

La Paz County has a higher truck share than any nearby county

Compared with its 4 closest neighbours, La Paz County moves 9.7% of the total daily travel and is 51.5% less congested; it has the quietest roads of the five. Freight passes through here that never reaches the areas around it: the truck share is high precisely because the local car traffic is not.

La Paz County and the 4 nearest county-level areas by centroid distance, with the Arizona average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
La Paz County3,89623.5%2,850,96240.9 min8.4%
Yuma County, Arizona6,82110.5%4,299,75433.9 min14.6%
Maricopa County, Arizona11,8706.8%98,058,20532.5 min18.6%
Imperial County, California8,66813.1%6,475,28243.4 min20.8%
Yavapai County, Arizona6,74912.9%8,524,06533.4 min15.6%
Arizona average10,0099.6%N/A32.9 min18.1%

La Paz County ranked within Arizona

La Paz County sits in Arizona's top three on truck share on highways and average travel time.

La Paz County ranked among 15 county-level areas in Arizona (1 = highest); measures without data in every county rank a smaller field, down to 14.
MeasureLa Paz CountyArizona rank
Traffic volume (AADT)3,896#13 of 15
Highway vehicle-miles per day2,363,590#8 of 14
Truck share on highways26.1%#2 of 14
Highway trucks per day2,015#4 of 14
Average travel time40.9 min#2 of 15
Average driver income$59,204#14 of 15
Average driver age55.8 yrs#4 of 15

The two ends of this table sit far apart: #2 of 15 on average travel time, against #14 of 15 on average driver income.

Busiest roads in La Paz County, Arizona

On their busiest stretches, the three busiest roads in La Paz County carry 15,978 vehicles a day on average, 4.1 times the typical road in the county (3,896).

Pearl Harbor Memorial Highway leads with 25,567 vehicles a day, 7,649 of them trucks (29.9%). That is 2.1 times the next road, Riverside Drive (12,385). It also carries the most trucks on the list.

Trips using Vicksburg Road are long: a median of 67.2 minutes against 40.9 county-wide, the mark of a through route.

Vicksburg Road skews older: its drivers' median age is 69.9, compared with 55.8 county-wide.

Riverside Drive is busy with cars rather than freight: only 6.0% of its traffic is trucks, against 23.5% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Pearl Harbor Memorial HighwayMotorway · 25,567vehicles7,649trucks · 29.9%
Road class
Motorway
Congestion ratio
26.5%
Median trip time
52.5 min
Drivers’ median age
51.6 yrs
Drivers’ average income
$63,703

Pearl Harbor Memorial Highway is one of the more congested roads here: trips take 27% longer than at free-flow speed, against 8% county-wide.

2Riverside DriveTrunk road · 12,385vehicles738trucks · 6.0%
Road class
Trunk road
Congestion ratio
16.2%
Median trip time
35.5 min
Drivers’ median age
59.7 yrs
Drivers’ average income
$58,582

Riverside Drive carries 3.2 times the county average on its busiest stretch, where the median trip lasts 35.5 minutes.

3Vicksburg RoadSecondary road · 9,983vehicles1,069trucks · 10.7%
Road class
Secondary road
Median trip time
67.2 min
Drivers’ median age
69.9 yrs
Drivers’ average income
$55,681

At 2.6 times the county average, Vicksburg Road draws drivers from neighborhoods averaging $55,681 in household income.

4Rio Vista HighwayTrunk road · 9,662vehicles718trucks · 7.4%
Road class
Trunk road
Congestion ratio
10.7%
Median trip time
36.3 min
Drivers’ median age
59.1 yrs
Drivers’ average income
$56,770

The busiest stretch of Rio Vista Highway carries 2.5 times the county average; trucks are 7.4% of it, below the county-wide 23.5%.

5California AvenuePrimary road · 9,432vehicles434trucks · 4.6%
Road class
Primary road
Congestion ratio
20.9%
Median trip time
34.7 min
Drivers’ median age
56.6 yrs
Drivers’ average income
$65,224

Delays build on California Avenue: its congestion ratio of 21% over free-flow time is well above the county's 8%.

Ranked by trucks per day

Only named roads are listed. Some unnamed segments, such as ramps or unlabeled carriageways, may carry as much traffic as the roads shown.

Cars and light vehiclesTrucks
1Pearl Harbor Memorial HighwayMotorway · #1 by traffic25,567vehicles7,649trucks · 29.9%
2Vicksburg RoadSecondary road · #3 by traffic9,983vehicles1,069trucks · 10.7%
3Riverside DriveTrunk road · #2 by traffic12,385vehicles738trucks · 6.0%
4Rio Vista HighwayTrunk road · #4 by traffic9,662vehicles718trucks · 7.4%
5State Route 95Trunk road · 5,950vehicles692trucks · 11.6%
Road class
Trunk road
Congestion ratio
8.0%
Median trip time
47.2 min
Drivers’ median age
61.4 yrs
Drivers’ average income
$59,534

At 53% more than the county average, State Route 95 draws drivers from neighborhoods averaging $59,534 in household income.

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

La PazDepartment 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 La Paz County

The same traffic breakdown for the areas closest to La Paz County, Arizona.

Need segment-level traffic data?

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