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Traffic heat map of San Juan County, Utah: 333 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Main Street and Center Street

San Juan County, Utah Traffic Counts

Our San Juan County, Utah traffic data covers 1,364 road segments over 333 road miles, with an average segment of just 1,290 ft. About 1 in 7 vehicles here is a truck, against 1 in 11 across Utah. 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 icon

Total Traffic Volume & Performance in San Juan County, Utah

Traffic

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

vehicles per day2,189
Trucks

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

14.1%
Average travel time

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

34.6 min
Drivers’ average age

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

47.2 yrs
Drivers’ average income

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

$67,284

A typical monitored road in San Juan County, Utah sees 2,189 vehicles per day, while its 333 miles of monitored roads together handle 539,742 vehicle-miles traveled per day (≈197 million per year). About 1 in 7 vehicles is a truck, well above the 8.9% across Utah - a freight-heavy mix.

Traffic 79% below the Utah average

San Juan's average daily traffic volume is 79% lower than the state average - 2,189 vehicles per day against 10,198 - suggesting less traffic load per road - very light roads: easy truck access, but little passing trade for roadside retail. In total volume terms, its road network carries about 0.6% of Utah's statewide total of vehicle-miles. By volume, San Juan's 2,189 vehicles per day trails 86% of counties in Utah.

Journey times run 8% higher than the state level, at 34.6 minutes on average. 75% of counties in Utah have a shorter average travel time than San Juan's 34.6 minutes.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in San Juan County, Utah

Trafficvehicles per day6,275
Trucks14.7%
Average travel time47.8 min
Drivers’ average age48.0 yrs
Drivers’ average income$74,340

Highways carry more than half of all travel in San Juan County, Utah (59% of vehicle-miles). The average highway carries 6,275 vehicles per day, 350% more than the average non-highway road in the same area, which carries 1,395 vehicles per day.

With 20% of the road miles (66 miles in 222 segments), highways punch above their length, carrying 317,514 vehicle-miles traveled per day (≈116 million per year).

Fewer highway trucks than 79% of counties in Utah

At 14.7%, highway truck share is 19% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.

50% of counties in Utah see a lower highway truck share than San Juan's 14.7%. By raw truck volume, San Juan carries fewer highway trucks than 79% of counties in Utah.

non-highway traffic icon

Non-highway Traffic in San Juan County, Utah

Trafficvehicles per day1,395
Trucks13.3%
Average travel time32.1 min
Drivers’ average age45.8 yrs
Drivers’ average income$59,506

A significant share of driving in San Juan County, Utah, 41% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 1,395 vehicles per day.

Spread over 267 miles and 1,142 segments, 80% of the road network, local roads carry a lighter load per mile: 222,228 vehicle-miles traveled per day (≈81.1 million per year). The truck share on non-highway roads is 13.3%.

Drivers from lower-income areas than 86% of counties in Utah

Non-highway roads carry a truck concentration that's 9% lower than the highway network.

Trip origins here have lower average income than 86% of counties in Utah. San Juan's median driver age is higher than 82% of counties in Utah.

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 2:00 PM to 6:00 PM, with volumes reaching approximately 61% higher than the daily average.
Weekend traffic:
Weekends are busier than weekdays: volumes run about 6% above weekday levels, which usually points to leisure, tourism or shopping traffic.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +14% versus the annual average.
Lowest month:
February is the quietest month, with volumes -22% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In San Juan County, Utah, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +14% in high season.

San Juan County vs. Utah Traffic Comparison

San Juan County's biggest difference from the Utah average is its average daily traffic per road, 79% below it. Its truck share, by contrast, is 58% above.

MetricSan Juan CountyUtah averageDifference
Traffic2,18910,198-78.5%
Truck % (Total Traffic)14.1%8.9%+58.3%
Truck % (Highway)14.7%12.3%+19.0%
Avg. Travel Time34.6 min32.2 min+7.7%

How San Juan County compares

San Juan County has a higher truck share than any nearby county

San Juan County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the fourth busiest roads of the five. Quiet roads and long journeys - a rural pattern, where the distance between destinations rather than the traffic on the way is what takes the time.

San Juan County and the 4 nearest county-level areas by centroid distance, with the Utah average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
San Juan County2,18914.1%539,74234.6 minN/A
Montezuma County, Colorado3,75610.5%797,10930.4 min10.2%
Dolores County, Colorado3,05912.6%110,04142.4 min10.7%
San Miguel County, Colorado3,2128.1%186,25523.0 min9.2%
Wayne County, Utah9749.3%73,47524.4 minN/A
Utah average10,1988.9%N/A32.2 min21.2%

San Juan County ranked within Utah

San Juan County sits in the bottom quarter of the Utah field on highway travel volume, at #22 of 25.

San Juan County ranked among 29 county-level areas in Utah (1 = highest); measures without data in every county rank a smaller field, down to 25.
MeasureSan Juan CountyUtah rank
Traffic volume (AADT)2,189#25 of 29
Highway vehicle-miles per day317,514#22 of 25
Truck share on highways14.7%#13 of 25
Highway trucks per day922#20 of 25
Average travel time34.6 min#8 of 29
Average driver income$67,284#25 of 29
Average driver age47.2 yrs#6 of 29

The two ends of this table sit far apart: #6 of 29 on average driver age, against #22 of 25 on highway travel volume.

Busiest roads in San Juan County, Utah

Traffic concentrates on a few corridors: the three busiest roads average 8,656 vehicles a day, against 2,189 on the average road in San Juan County.

Main Street leads with 12,004 vehicles a day, 1,156 of them trucks (9.6%). That is 70% more than the next road, Center Street (7,043). It also carries the most trucks.

Trips using Main Street are long: a median of 53.6 minutes against 34.6 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Main StreetTrunk road · 12,004vehicles1,156trucks · 9.6%
Road class
Trunk road
Median trip time
53.6 min
Drivers’ median age
47.1 yrs
Drivers’ average income
$69,252

A main artery: Main Street's busiest stretch carries 5.5 times the county average; trucks are 9.6% of it, below the county-wide 14.1%.

2Center StreetTrunk road · 7,043vehicles678trucks · 9.6%
Road class
Trunk road
Median trip time
48.1 min
Drivers’ median age
50.1 yrs
Drivers’ average income
$63,714

Drivers on Center Street are on long journeys, a median 48.1 minutes against 34.6 county-wide: a through route more than a local street.

3US 191Trunk road · 6,920vehicles1,049trucks · 15.2%
Road class
Trunk road
Median trip time
34.9 min
Drivers’ median age
47.2 yrs
Drivers’ average income
$76,979

US 191 peaks at 6,920 vehicles a day, 3.2 times the county average; trucks are 15.2% of it, above the county-wide 14.1%.

4Central StreetTrunk road · 5,840vehicles621trucks · 10.6%
Road class
Trunk road
Median trip time
46.4 min
Drivers’ median age
50.8 yrs
Drivers’ average income
$68,027

Central Street carries 2.7 times the county average at its busiest, 621 of them trucks (10.6%, below the county-wide 14.1%).

5US 491Trunk road · 3,946vehicles554trucks · 14.0%
Road class
Trunk road
Median trip time
49.2 min
Drivers’ median age
49.4 yrs
Drivers’ average income
$68,840

US 491 carries through traffic: the median trip using it lasts 49.2 minutes, against 34.6 for the county.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Main StreetTrunk road · #1 by traffic12,004vehicles1,156trucks · 9.6%
2US 191Trunk road · #3 by traffic6,920vehicles1,049trucks · 15.2%
3Center StreetTrunk road · #2 by traffic7,043vehicles678trucks · 9.6%
4Central StreetTrunk road · #4 by traffic5,840vehicles621trucks · 10.6%
5US 491Trunk road · #5 by traffic3,946vehicles554trucks · 14.0%
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

San JuanDepartment 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 San Juan County

The same traffic breakdown for the areas closest to San Juan County, Utah.

Need segment-level traffic data?

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