Need segment-level traffic data?

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

Get insights →
Traffic heat map of Modoc County, California: 224 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Main Street and 12th Street

Modoc County, California Traffic Counts

Our Modoc County, California traffic data covers 851 road segments over 224 road miles, with an average segment of just 1,389 ft. Its drivers come from the lowest-income neighborhoods of any county in California, averaging $56,891. 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
Find my place
total traffic icon

Total Traffic Volume & Performance in Modoc County, California

Traffic

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

vehicles per day1,733
Trucks

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

13.4%
Average travel time

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

35.8 min
Congestion ratio

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

3.2%
Drivers’ average age

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

58.6 yrs
Drivers’ average income

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

$56,891

A typical monitored road in Modoc County, California sees 1,733 vehicles per day, while its 224 miles of monitored roads together handle 265,514 vehicle-miles traveled per day (≈96.9 million per year). Freight weighs heavily here: trucks are 13.4% of traffic, against 7.8% across California.

Quieter roads than 98% of counties in California

At 1,733 vehicles per day, the average monitored road in Modoc carries 86% less traffic than the state average of 12,766, suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Across the whole network, that travel is less than 0.1% of California's statewide total. Modoc carries less traffic than 98% of counties in California.

Journey times here (35.8 minutes on average) closely track the state level. 72% of counties in California have a shorter average travel time than Modoc's 35.8 minutes.

Congestion runs 88% lower than the state level, at a ratio of 3.2%, which means smoother traffic flow - free-flowing roads make scheduled deliveries highly predictable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Modoc County, California

Trafficvehicles per day2,794
Trucks14.5%
Average travel time36.2 min
Congestion ratio2.8%
Drivers’ average age58.9 yrs
Drivers’ average income$56,102

Most travel in Modoc County, California happens on highways, 75% of all vehicle-miles. The average highway carries 2,794 vehicles per day, 196% more than the average non-highway road in the same area, which carries 944 vehicles per day.

With 46% of the road miles (103 miles in 363 segments), highways punch above their length, carrying 198,951 vehicle-miles traveled per day (≈72.6 million per year).

The fewest highway trucks of any county in California

At 14.5%, highway truck share is 40% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.

63% of counties in California see a lower highway truck share than Modoc's 14.5%. By raw volume, Modoc carries the lowest number of highway trucks in California - roughly 281 trucks per day.

non-highway traffic icon

Non-highway Traffic in Modoc County, California

Trafficvehicles per day944
Trucks10.0%
Average travel time35.5 min
Congestion ratio3.5%
Drivers’ average age57.9 yrs
Drivers’ average income$58,253

At 25% of vehicle-miles, local roads carry a smaller share of the traffic in Modoc County, California than highways. On the average non-highway road, that comes to 944 vehicles per day.

Local roads make up 54% of the monitored road miles (121 miles in 488 segments) but carry less than their share of travel: 66,563 vehicle-miles traveled per day (≈24.3 million per year). Trucks make up 10.0% of non-highway traffic, about 1 in 10 vehicles.

The lowest driver income of any county in California

The concentration of trucks on non-highway roads is 31% lower than on highways.

The non-highway congestion ratio of 3.5% is 87% lower than the state level, suggesting more efficient local mobility than the state average.

At $56,891, the average driver income for trips originating here is the lowest in California. 96% of counties in California have a younger driver population than Modoc.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–10:00 AM and PM peak 3:00 PM–5:00 PM, with volumes reaching approximately 62% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 27% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +11% versus the annual average.
Lowest month:
March is the quietest month, with volumes -16% versus the annual average.

Data Finding: Hourly & Seasonal Patterns

In Modoc County, California, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +11% in high season.

Modoc County vs. California Traffic Comparison

The average daily traffic per road sets Modoc County apart: 86% below the California average. Its truck share, by contrast, is 73% above.

MetricModoc CountyCalifornia averageDifference
Traffic1,73312,766-86.4%
Truck % (Total Traffic)13.4%7.8%+72.6%
Truck % (Highway)14.5%10.4%+40.1%
Avg. Travel Time35.8 min34.5 min+3.9%

How Modoc County compares

Modoc County is the least congested of its nearby counties

Compared with its 4 closest neighbours, Modoc County moves 7.5% of the total daily travel and is 75.4% less congested; it has the quietest roads of the five. Less traffic and more room for it - the roads here run both quieter and freer than the areas around them.

Modoc 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
Modoc County1,73313.4%265,51435.8 min3.2%
Lassen County, California3,12212.2%1,133,55041.2 min9.0%
Washoe County, Nevada6,2327.4%8,670,40231.4 min15.4%
Shasta County, California5,12912.3%3,941,77830.8 min18.2%
Plumas County, California2,4108.9%470,47337.2 min9.4%
California average12,7667.8%N/A34.5 min27.4%

Modoc County ranked within California

Modoc County sits in California's top three on average driver age.

Modoc County ranked among 58 county-level areas in California (1 = highest); measures without data in every county rank a smaller field, down to 52.
MeasureModoc CountyCalifornia rank
Traffic volume (AADT)1,733#57 of 58
Highway vehicle-miles per day198,951#51 of 52
Truck share on highways14.5%#20 of 52
Highway trucks per day406#52 of 52
Average travel time35.8 min#17 of 58
Average driver income$56,891#58 of 58
Average driver age58.6 yrs#3 of 58

Modoc County ranks #3 of 58 on average driver age but #58 of 58 on average driver income. The driver population here skews older and lower-income than most of California.

Busiest roads in Modoc County, California

Traffic concentrates on a few corridors: the three busiest roads average 5,104 vehicles a day, against 1,733 on the average road in Modoc County.

Main Street is the busiest road, at 7,234 vehicles a day, 579 of them trucks (8.0%). It also carries the most trucks.

Trips using Tickner Road are long: a median of 66.5 minutes against 35.8 county-wide, the mark of a through route.

Drivers on CA 139 are noticeably younger, with a median age of 43.6 against 58.6 across the county.

Trucks make up 23.9% of traffic on Tickner Road, against 13.4% across all roads in the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Main StreetTrunk road · 7,234vehicles579trucks · 8.0%
Road class
Trunk road
Median trip time
29.3 min
Drivers’ median age
58.7 yrs
Drivers’ average income
$56,368

On its busiest stretch, Main Street carries 4.2 times the county average; trucks are 8.0% of it, below the county-wide 13.4%.

212th StreetTrunk road · 5,298vehicles458trucks · 8.7%
Road class
Trunk road
Median trip time
29.2 min
Drivers’ median age
59.2 yrs
Drivers’ average income
$56,378

12th Street peaks at 5,298 vehicles a day, 3.1 times the county average; trucks are 8.7% of it, below the county-wide 13.4%.

3CA 139Trunk road · 2,780vehicles395trucks · 14.2%
Road class
Trunk road
Median trip time
45.5 min
Drivers’ median age
43.6 yrs
Drivers’ average income
$58,459

At 60% more than the county average, CA 139 draws drivers from neighborhoods averaging $58,459 in household income.

4CA 299Trunk road · 1,988vehicles274trucks · 13.8%
Road class
Trunk road
Median trip time
34.1 min
Drivers’ median age
65.5 yrs
Drivers’ average income
$55,310

CA 299 is busy by local standards, at 15% more than the county average on its busiest stretch; trucks are 13.8% of it, in line with the county-wide 13.4%.

5US 395Primary road · 1,868vehicles160trucks · 8.6%
Road class
Primary road
Median trip time
34.0 min
Drivers’ median age
55.2 yrs
Drivers’ average income
$56,281

US 395 peaks at 1,868 vehicles a day, 8% more than the county average; trucks are 8.6% of it, below the county-wide 13.4%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Main StreetTrunk road · #1 by traffic7,234vehicles579trucks · 8.0%
212th StreetTrunk road · #2 by traffic5,298vehicles458trucks · 8.7%
3CA 139Trunk road · #3 by traffic2,780vehicles395trucks · 14.2%
4CA 299Trunk road · #4 by traffic1,988vehicles274trucks · 13.8%
5Tickner RoadTrunk road · 813vehicles194trucks · 23.9%
Road class
Trunk road
Median trip time
66.5 min

Tickner Road is a quieter road: its busiest stretch carries 53% less than the county average; trucks are 23.9% of it, above the county-wide 13.4%.

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

ModocDepartment 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.
link arrow icon
Data current as of:
Q3 2026

Explore further

TrafficZoom platform

— street-level analytics and custom corridor reports.

Map AI

— demographics, housing and mobility data.

Counties near Modoc County

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

Need segment-level traffic data?

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