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Traffic heat map of Santa Cruz County, Arizona: 229 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Mariposa Road and I 19

Santa Cruz County, Arizona Traffic Counts

Trips here are the shortest of any county in Arizona, a median 26.5 minutes. This page breaks down traffic in Santa Cruz County, Arizona across 229 miles of monitored roads split into 2,143 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 Santa Cruz County, Arizona

Traffic

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

vehicles per day5,006
Trucks

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

9.1%
Average travel time

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

26.5 min
Congestion ratio

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

12.6%
Drivers’ average age

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

45.5 yrs
Drivers’ average income

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

$56,544

A typical monitored road in Santa Cruz County, Arizona sees 5,006 vehicles per day, while its 229 miles of monitored roads together handle 1,112,244 vehicle-miles traveled per day (≈406 million per year). About 1 in 11 vehicles is a truck, in line with Arizona (9.6%).

The shortest trips of any county in Arizona

Santa Cruz sees 50% lower average daily traffic volume than the state average (5,006 vehicles per day against 10,009), suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. Network-wide, Santa Cruz accounts for about 0.6% of Arizona's statewide total of vehicle-miles. 71% of counties in Arizona see more traffic than Santa Cruz's 5,006 vehicles per day.

At 26.5 minutes, the average travel time is 19% lower than the state level. At 26.5 minutes, Santa Cruz also has the lowest average travel time in Arizona.

Congestion runs 30% lower than the state level, at a ratio of 12.6%, which means 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 Santa Cruz County, Arizona

Trafficvehicles per day6,005
Trucks10.7%
Average travel time34.8 min
Congestion ratio13.3%
Drivers’ average age45.5 yrs
Drivers’ average income$57,000

Highways carry more than half of all travel in Santa Cruz County, Arizona (61% of vehicle-miles). The average highway carries 6,005 vehicles per day, 23% more than the average non-highway road in the same area, which carries 4,879 vehicles per day.

With 29% of the road miles (67 miles in 242 segments), highways punch above their length, carrying 676,853 vehicle-miles traveled per day (≈247 million per year).

Lower highway truck share than 85% of counties in Arizona

Highway truck concentration here runs 23% lower than the state average, at 10.7%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

85% of counties in Arizona see a higher highway truck share than Santa Cruz's 10.7%. 85% of counties in Arizona see more highway trucks per day than Santa Cruz's roughly 643.

non-highway traffic icon

Non-highway Traffic in Santa Cruz County, Arizona

Trafficvehicles per day4,879
Trucks6.7%
Average travel time25.5 min
Congestion ratio12.6%
Drivers’ average age45.6 yrs
Drivers’ average income$55,903

Local roads carry a significant share of travel in Santa Cruz County, Arizona: 39% of all vehicle-miles. On the average non-highway road, that comes to 4,879 vehicles per day.

Spread over 162 miles and 1,901 segments, 71% of the road network, local roads carry a lighter load per mile: 435,390 vehicle-miles traveled per day (≈159 million per year). Trucks make up 6.7% of non-highway traffic, about 1 in 15 vehicles.

The lowest driver income of any county in Arizona

The concentration of trucks on non-highway roads is 38% lower than on highways.

The non-highway congestion ratio of 12.6% is 31% lower than the state level, suggesting more efficient local mobility than the state average.

Santa Cruz also has the lowest average driver income in Arizona among trip origins - $56,544. 50% of counties in Arizona have a younger driver population than Santa Cruz.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and a long afternoon plateau from 2:00 PM to 8:00 PM, with volumes reaching approximately 72% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 17% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
March–May is the high season, with volumes +5% versus the annual average.
Lowest month:
July is the quietest month, with volumes -10% versus the annual average - an unusual summer low, when most places are at their busiest.

Data Finding: Hourly & Seasonal Patterns

In Santa Cruz County, Arizona, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +5% in high season.

Santa Cruz County vs. Arizona Traffic Comparison

Santa Cruz County's biggest difference from the Arizona average is its average daily traffic per road, 50% below it. Its highway truck share is also 23% below.

MetricSanta Cruz CountyArizona averageDifference
Traffic5,00610,009-50.0%
Truck % (Total Traffic)9.1%9.6%-5.1%
Truck % (Highway)10.7%13.9%-23.2%
Avg. Travel Time26.5 min32.9 min-19.5%

How Santa Cruz County compares

Santa Cruz County has the shortest trips among its nearby counties

Against the 4 nearest areas, Santa Cruz County moves 12.1% of the total daily travel and sees 22.8% shorter typical trips; it has the fourth busiest roads of the five. It is the quiet one of the group - below the areas around it on volume, total travel and trip length alike.

Santa Cruz 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
Santa Cruz County5,0069.1%1,112,24426.5 min12.6%
Pima County, Arizona9,1677.2%20,510,20834.2 min27.8%
Cochise County, Arizona4,18319.2%4,330,41131.8 min10.4%
Pinal County, Arizona6,81812.6%11,206,60533.4 min14.0%
Graham County, Arizona5,4689.8%797,42137.9 min12.0%
Arizona average10,0099.6%N/A32.9 min18.1%

Santa Cruz County ranked within Arizona

No county-level area in Arizona records a lower average travel time and average driver income than Santa Cruz County.

Santa Cruz County ranked among 15 county-level areas in Arizona (1 = highest); measures without data in every county rank a smaller field, down to 14.
MeasureSanta Cruz CountyArizona rank
Traffic volume (AADT)5,006#11 of 15
Highway vehicle-miles per day676,853#13 of 14
Truck share on highways10.7%#12 of 14
Highway trucks per day643#12 of 14
Average travel time26.5 min#15 of 15
Average driver income$56,544#15 of 15
Average driver age45.5 yrs#8 of 15

Busiest roads in Santa Cruz County, Arizona

Traffic concentrates on a few corridors: the three busiest roads average 22,244 vehicles a day, against 5,006 on the average road in Santa Cruz County.

Mariposa Road is the busiest road, at 24,728 vehicles a day, 1,230 of them trucks (5.0%). I 19 carries the most trucks, 2,369 a day (10.8% of its traffic), although it ranks #2 for all traffic.

Naugle Avenue skews older: its drivers' median age is 59.0, compared with 45.5 county-wide.

Naugle Avenue carries longer journeys than most roads here, with a median trip of 37.6 minutes against 26.5 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Mariposa RoadPrimary road · 24,728vehicles1,230trucks · 5.0%
Road class
Primary road
Congestion ratio
26.9%
Median trip time
23.8 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$48,905

Mariposa Road is one of the more congested roads here: trips take 27% longer than at free-flow speed, against 13% county-wide.

2I 19Motorway · 21,857vehicles2,369trucks · 10.8%
Road class
Motorway
Congestion ratio
21.2%
Median trip time
36.8 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$57,394

Drivers on I 19 are on long journeys, a median 36.8 minutes against 26.5 county-wide: a through route more than a local street.

3Grand AvenuePrimary road · 20,148vehicles961trucks · 4.8%
Road class
Primary road
Congestion ratio
20.8%
Median trip time
24.3 min
Drivers’ median age
45.2 yrs
Drivers’ average income
$50,132

Grand Avenue peaks at 20,148 vehicles a day, 4.0 times the county average; trucks are 4.8% of it, below the county-wide 9.1%.

4Rio Rico DriveTertiary road · 11,431vehicles481trucks · 4.2%
Road class
Tertiary road
Congestion ratio
26.0%
Median trip time
25.2 min
Drivers’ median age
45.3 yrs
Drivers’ average income
$65,216

Delays build on Rio Rico Drive: its congestion ratio of 26% over free-flow time is well above the county's 13%.

5Mastick WayTertiary road · 9,751vehicles354trucks · 3.6%
Road class
Tertiary road
Congestion ratio
21.9%
Median trip time
22.9 min
Drivers’ median age
45.4 yrs
Drivers’ average income
$43,780

Mastick Way is busy by local standards, at 95% more than the county average on its busiest stretch; trucks are 3.6% of it, below the county-wide 9.1%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 19Motorway · #2 by traffic21,857vehicles2,369trucks · 10.8%
2Mariposa RoadPrimary road · #1 by traffic24,728vehicles1,230trucks · 5.0%
3Grand AvenuePrimary road · #3 by traffic20,148vehicles961trucks · 4.8%
4Naugle AvenuePrimary road · 5,350vehicles726trucks · 13.6%
Road class
Primary road
Congestion ratio
18.3%
Median trip time
37.6 min
Drivers’ median age
59.0 yrs
Drivers’ average income
$64,682

Naugle Avenue peaks at 5,350 vehicles a day, 7% more than the county average; trucks are 13.6% of it, above the county-wide 9.1%.

5Rio Rico DriveTertiary road · #4 by traffic11,431vehicles481trucks · 4.2%
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

Santa CruzDepartment 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 Santa Cruz County

The same traffic breakdown for the areas closest to Santa Cruz County, Arizona.

Need segment-level traffic data?

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