
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 in Modoc County, California
| Traffic | vehicles per day2,794 |
|---|
| Trucks | 14.5% |
|---|
| Average travel time | 36.2 min |
|---|
| Congestion ratio | 2.8% |
|---|
| Drivers’ average age | 58.9 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 in Modoc County, California
| Traffic | vehicles per day944 |
|---|
| Trucks | 10.0% |
|---|
| Average travel time | 35.5 min |
|---|
| Congestion ratio | 3.5% |
|---|
| Drivers’ average age | 57.9 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.