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Traffic heat map of Inyo County, California: 408 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Main Street and Sierra Highway

Inyo County, California Traffic Counts

Our Inyo County, California traffic data covers 1,654 road segments over 408 road miles, with an average segment of just 1,302 ft. Its busiest road, Main Street, carries 20,922 vehicles a day, 3.8 times the average road. 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 Inyo County, California

Traffic

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

vehicles per day5,471
Trucks

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

11.6%
Average travel time

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

37.1 min
Congestion ratio

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

12.8%
Drivers’ average age

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

52.3 yrs
Drivers’ average income

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

$79,155

A typical monitored road in Inyo County, California sees 5,471 vehicles per day, while its 408 miles of monitored roads together handle 1,029,253 vehicle-miles traveled per day (≈376 million per year). Trucks are 11.6% of traffic, more than the 7.8% across California.

Longer trips than 79% of counties in California

Inyo sees 57% lower average daily traffic volume than the state average (5,471 vehicles per day against 12,766), suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Network-wide, Inyo accounts for about 0.1% of California's statewide total of vehicle-miles. 63% of counties in California see more traffic than Inyo's 5,471 vehicles per day.

Journey times run 8% higher than the state level, at 37.1 minutes on average. Its average travel time of 37.1 minutes is longer than 79% of counties in California.

Congestion runs 53% lower than the state level, at a ratio of 12.8%, which means smoother traffic flow - delays are rare enough to plan travel times almost to the minute.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Inyo County, California

Trafficvehicles per day7,579
Trucks11.7%
Average travel time41.7 min
Congestion ratio14.6%
Drivers’ average age52.4 yrs
Drivers’ average income$75,473

Highways carry the vast majority of travel in Inyo County, California, 88% of all vehicle-miles. The average highway carries 7,579 vehicles per day, 271% more than the average non-highway road in the same area, which carries 2,045 vehicles per day.

Highways make up 58% of the monitored road miles (235 miles, 1,024 segments), so they carry more than their share: 902,370 vehicle-miles traveled per day (≈329 million per year).

Fewer highway trucks than 96% of counties in California

Highway truck concentration here runs 13% higher than the state average, at 11.7%. The highway traffic mix is typical for California: neither freight- nor commuter-dominated.

51% of counties in California see a higher highway truck share than Inyo's 11.7%. Inyo's highway truck count is lower than 96% of counties in California, at roughly 887 trucks per day.

non-highway traffic icon

Non-highway Traffic in Inyo County, California

Trafficvehicles per day2,045
Trucks10.5%
Average travel time29.5 min
Congestion ratio9.8%
Drivers’ average age51.8 yrs
Drivers’ average income$86,944

Only a small share of travel in Inyo County, California happens on local roads: 12% of vehicle-miles. The average non-highway road carries 2,045 vehicles per day.

Spread over 173 miles and 630 segments, 42% of the road network, local roads carry a lighter load per mile: 126,883 vehicle-miles traveled per day (≈46.3 million per year). About 1 in 10 vehicles on non-highway roads is a truck (10.5%).

Older drivers than 84% of counties in California

Non-highway roads carry a truck concentration that's 10% lower than the highway network.

Non-highway congestion (9.8%) runs 63% lower than the state average, pointing to smoother local traffic flow.

Trip origins here have lower average income than 68% of counties in California. 84% of counties in California have a younger driver population than Inyo.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and a long afternoon plateau from 1:00 PM to 5:00 PM, with volumes reaching approximately 73% higher than the daily average.
Weekend traffic:
Weekend traffic is about as busy as on weekdays (-3%): leisure and through trips largely replace the commute.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +15% versus the annual average.
Lowest month:
February is the quietest month, with volumes -12% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Inyo County, California, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +15% in high season.

Inyo County vs. California Traffic Comparison

The average daily traffic per road sets Inyo County apart: 57% below the California average. Its truck share, by contrast, is 49% above.

MetricInyo CountyCalifornia averageDifference
Traffic5,47112,766-57.1%
Truck % (Total Traffic)11.6%7.8%+48.6%
Truck % (Highway)11.7%10.4%+12.7%
Avg. Travel Time37.1 min34.5 min+7.5%

How Inyo County compares

Inyo County against nearby counties

Compared with its 4 closest neighbours, Inyo County moves 10.2% of the total daily travel; it has the third busiest roads of the five. The mirror image of a big network: fewer road-miles carrying heavier traffic, so the travel here is concentrated rather than spread out.

Inyo County and the 4 nearest county-level areas by centroid distance, with the California average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Inyo County5,47111.6%1,029,25337.1 min12.8%
Esmeralda County, Nevada2,29114.8%395,81244.3 min5.3%
Tulare County, California6,29011.6%11,280,06034.6 min15.3%
Nye County, Nevada3,11311.7%1,405,69429.0 min8.1%
Kern County, California6,26316.4%27,254,55334.5 min17.8%
California average12,7667.8%N/A34.5 min27.4%

Inyo County ranked within California

Highway truck volume places Inyo County #50 of 52 in California - the bottom quarter of the state.

Inyo County ranked among 58 county-level areas in California (1 = highest); measures without data in every county rank a smaller field, down to 52.
MeasureInyo CountyCalifornia rank
Traffic volume (AADT)5,471#37 of 58
Highway vehicle-miles per day902,370#44 of 52
Truck share on highways11.7%#27 of 52
Highway trucks per day887#50 of 52
Average travel time37.1 min#13 of 58
Average driver income$79,155#40 of 58
Average driver age52.3 yrs#10 of 58

Inyo County ranks #10 of 58 on average driver age but #50 of 52 on highway truck volume - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Inyo County, California

Traffic concentrates on a few corridors: the three busiest roads average 13,593 vehicles a day, against 5,471 on the average road in Inyo County.

Main Street is the busiest road, at 20,922 vehicles a day, 1,406 of them trucks (6.7%). No other road comes close: Sierra Highway, in second place, carries 11,690. It tops the truck ranking too, with the most trucks.

Grand Army of the Republic Highway carries longer journeys than most roads here, with a median trip of 69.3 minutes against 37.1 county-wide.

Grand Army of the Republic Highway skews older: its drivers' median age is 60.7, compared with 52.3 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Main StreetTrunk road · 20,922vehicles1,406trucks · 6.7%
Road class
Trunk road
Congestion ratio
34.9%
Median trip time
33.3 min
Drivers’ median age
51.5 yrs
Drivers’ average income
$81,297

Delays build on Main Street: its congestion ratio of 35% over free-flow time is well above the county's 13%.

2Sierra HighwayTrunk road · 11,690vehicles821trucks · 7.0%
Road class
Trunk road
Congestion ratio
17.5%
Median trip time
29.4 min
Drivers’ median age
51.8 yrs
Drivers’ average income
$82,044

At 2.1 times the county average, Sierra Highway draws drivers from neighborhoods averaging $82,044 in household income.

3CA 395Trunk road · 8,167vehicles752trucks · 9.2%
Road class
Trunk road
Congestion ratio
9.3%
Median trip time
30.6 min
Drivers’ median age
50.8 yrs
Drivers’ average income
$84,366

At 49% more than the county average, CA 395 draws drivers from neighborhoods averaging $84,366 in household income.

4US 395Trunk road · 7,409vehicles891trucks · 12.0%
Road class
Trunk road
Median trip time
34.2 min
Drivers’ median age
51.9 yrs
Drivers’ average income
$94,846

US 395 is busy by local standards, at 35% more than the county average on its busiest stretch; trucks are 12.0% of it, in line with the county-wide 11.6%.

5Line StreetSecondary road · 7,037vehicles280trucks · 4.0%
Road class
Secondary road
Congestion ratio
16.1%
Median trip time
29.4 min
Drivers’ median age
51.8 yrs
Drivers’ average income
$86,999

Line Street peaks at 7,037 vehicles a day, 29% more than the county average; trucks are 4.0% of it, below the county-wide 11.6%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Main StreetTrunk road · #1 by traffic20,922vehicles1,406trucks · 6.7%
2Grand Army of the Republic HighwayTrunk road · 7,027vehicles938trucks · 13.3%
Road class
Trunk road
Congestion ratio
13.8%
Median trip time
69.3 min
Drivers’ median age
60.7 yrs
Drivers’ average income
$70,108

Grand Army of the Republic Highway carries 28% more than the county average at its busiest, 938 of them trucks (13.3%, above the county-wide 11.6%).

3US 395Trunk road · #4 by traffic7,409vehicles891trucks · 12.0%
4Sierra HighwayTrunk road · #2 by traffic11,690vehicles821trucks · 7.0%
5CA 395Trunk road · #3 by traffic8,167vehicles752trucks · 9.2%
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

InyoDepartment 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 Inyo County

The same traffic breakdown for the areas closest to Inyo County, California.

Need segment-level traffic data?

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