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Traffic heat map of Lassen County, California: 457 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Main Street and CA 36

Lassen County, California Traffic Counts

TrafficZoom tracks traffic on 457 road miles in Lassen County, California, divided into 2,001 segments averaging 1,205 ft. Trips here are among the 5 longest of any county in California. Built from cross-verified mobile and road-sensor data, these counts help you size up a retail site, plan logistics routes or assess infrastructure needs.
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 Lassen County, California

Traffic

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

vehicles per day3,122
Trucks

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

12.2%
Average travel time

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

41.2 min
Congestion ratio

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

9.0%
Drivers’ average age

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

45.4 yrs
Drivers’ average income

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

$69,764

Our data shows 3,122 vehicles per day on the average road in Lassen County, California, and 1,133,550 vehicle-miles traveled per day (≈414 million per year) across its 457 miles of monitored roads. About 1 in 8 vehicles is a truck, well above the 7.8% across California - a freight-heavy mix.

Longer trips than 93% of counties in California

Lassen sees 76% lower average daily traffic volume than the state average (3,122 vehicles per day against 12,766), suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Network-wide, Lassen accounts for about 0.1% of California's statewide total of vehicle-miles. Lassen carries less traffic than 86% of counties in California.

The average trip takes 41.2 minutes, 19% higher than the state level. Its average travel time of 41.2 minutes is longer than 93% of counties in California.

At 67% lower than the state level, the 9.0% congestion ratio signals 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 Lassen County, California

Trafficvehicles per day6,449
Trucks12.9%
Average travel time47.8 min
Congestion ratio14.0%
Drivers’ average age45.8 yrs
Drivers’ average income$69,796

Most travel in Lassen County, California happens on highways, 75% of all vehicle-miles. The average highway carries 6,449 vehicles per day, 310% more than the average non-highway road in the same area, which carries 1,572 vehicles per day.

Highways make up 45% of the monitored road miles (207 miles, 636 segments), so they carry more than their share: 851,653 vehicle-miles traveled per day (≈311 million per year).

Fewer highway trucks than 94% of counties in California

Highway truck concentration here runs 25% higher than the state average, at 12.9%. Highways here lean toward freight, so highway access is a real asset for logistics operators.

57% of counties in California see a lower highway truck share than Lassen's 12.9%. 94% of counties in California see more highway trucks per day than Lassen's roughly 835.

non-highway traffic icon

Non-highway Traffic in Lassen County, California

Trafficvehicles per day1,572
Trucks10.0%
Average travel time38.1 min
Congestion ratio6.6%
Drivers’ average age44.6 yrs
Drivers’ average income$69,703

At 25% of vehicle-miles, local roads carry a smaller share of the traffic in Lassen County, California than highways. On the average non-highway road, that comes to 1,572 vehicles per day.

Local roads make up 55% of the monitored road miles (249 miles in 1,365 segments) but carry less than their share of travel: 281,897 vehicle-miles traveled per day (≈103 million per year). Trucks make up 10.0% of non-highway traffic, about 1 in 10 vehicles.

Drivers from lower-income areas than 88% of counties in California

The concentration of trucks on non-highway roads is 23% lower than on highways.

Non-highway congestion (6.6%) runs 75% lower than the state average, pointing to smoother local traffic flow.

88% of counties in California see higher average driver income among trip origins than Lassen. Lassen's median driver age is higher than 54% of counties in California.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
A long morning plateau from 7:00 AM to 12:00 PM and a long afternoon plateau from 2:00 PM to 7:00 PM, with volumes reaching approximately 70% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 15% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
March–May is the high season, with volumes +15% versus the annual average.
Lowest month:
December is the quietest month, with volumes -27% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Lassen 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.

Lassen County vs. California Traffic Comparison

Of the four measures, average daily traffic per road differs most: Lassen County runs 76% below the California average. Its truck share, by contrast, is 57% above.

MetricLassen CountyCalifornia averageDifference
Traffic3,12212,766-75.5%
Truck % (Total Traffic)12.2%7.8%+57.3%
Truck % (Highway)12.9%10.4%+24.8%
Avg. Travel Time41.2 min34.5 min+19.4%

How Lassen County compares

Lassen County against nearby counties

Against the 4 nearest areas, Lassen County moves 46.9% of the total daily travel; it has the second busiest roads of the five. The same kind of road, just less of it: traffic per road matches the areas around it while the network itself is smaller.

Lassen 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
Lassen County3,12212.2%1,133,55041.2 min9.0%
Plumas County, California2,4108.9%470,47337.2 min9.4%
Washoe County, Nevada6,2327.4%8,670,40231.4 min15.4%
Sierra County, California1,74114.3%251,98062.2 min4.8%
Modoc County, California1,73313.4%265,51435.8 min3.2%
California average12,7667.8%N/A34.5 min27.4%

Lassen County ranked within California

Lassen County sits in the bottom quarter of the California field on highway truck volume, at #49 of 52.

Lassen County ranked among 58 county-level areas in California (1 = highest); measures without data in every county rank a smaller field, down to 52.
MeasureLassen CountyCalifornia rank
Traffic volume (AADT)3,122#50 of 58
Highway vehicle-miles per day851,653#45 of 52
Truck share on highways12.9%#23 of 52
Highway trucks per day835#49 of 52
Average travel time41.2 min#5 of 58
Average driver income$69,764#51 of 58
Average driver age45.4 yrs#27 of 58

Lassen County ranks #5 of 58 on average travel time but #49 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 Lassen County, California

The three busiest roads in Lassen County average 9,417 vehicles a day, 3.0 times the county average of 3,122 across all its monitored roads.

Main Street is the busiest road, at 12,282 vehicles a day, 735 of them trucks (6.0%). CA 36 carries the most trucks, 835 a day (9.0% of its traffic), although it ranks #2 for all traffic.

Feather River Highway carries longer journeys than most roads here, with a median trip of 62.5 minutes against 41.2 county-wide.

Drivers on Feather River Highway come from neighborhoods with an average household income of $41,554, 40% below the county average of $69,764.

Feather River Highway skews older: its drivers' median age is 55.2, compared with 45.4 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Main StreetTrunk road · 12,282vehicles735trucks · 6.0%
Road class
Trunk road
Congestion ratio
20.0%
Median trip time
40.1 min
Drivers’ median age
44.7 yrs
Drivers’ average income
$62,842

Travel on Main Street's busiest stretch runs 20% over free-flow time, against 9% across the county, so expect slower peak hours.

2CA 36Trunk road · 9,261vehicles835trucks · 9.0%
Road class
Trunk road
Congestion ratio
18.9%
Median trip time
30.5 min
Drivers’ median age
48.7 yrs
Drivers’ average income
$72,307

CA 36 is one of the more congested roads here: trips take 19% longer than at free-flow speed, against 9% county-wide.

3CA 70Primary road · 6,707vehicles584trucks · 8.7%
Road class
Primary road
Congestion ratio
14.4%
Median trip time
58.6 min
Drivers’ median age
54.3 yrs
Drivers’ average income
$47,566

Drivers on CA 70 are on long journeys, a median 58.6 minutes against 41.2 county-wide: a through route more than a local street.

4Hillcrest RoadTrunk road · 5,312vehicles441trucks · 8.3%
Road class
Trunk road
Congestion ratio
12.5%
Median trip time
29.3 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$70,052

Hillcrest Road is a local road at heart: the median trip using it lasts 29.3 minutes, against 41.2 for the county.

5US 395Trunk road · 5,118vehicles671trucks · 13.1%
Road class
Trunk road
Congestion ratio
12.6%
Median trip time
54.0 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$71,596

US 395 is busy by local standards, at 64% more than the county average on its busiest stretch; trucks are 13.1% of it, above the county-wide 12.2%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1CA 36Trunk road · #2 by traffic9,261vehicles835trucks · 9.0%
2Main StreetTrunk road · #1 by traffic12,282vehicles735trucks · 6.0%
3US 395Trunk road · #5 by traffic5,118vehicles671trucks · 13.1%
4CA 70Primary road · #3 by traffic6,707vehicles584trucks · 8.7%
5Feather River HighwayPrimary road · 4,824vehicles483trucks · 10.0%
Road class
Primary road
Congestion ratio
11.0%
Median trip time
62.5 min
Drivers’ median age
55.2 yrs
Drivers’ average income
$41,554

Feather River Highway peaks at 4,824 vehicles a day, 54% more than the county average; trucks are 10.0% of it, below the county-wide 12.2%.

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

LassenDepartment 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 Lassen County

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

Need segment-level traffic data?

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