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Traffic heat map of Shasta County, California: 799 miles of roads shaded from blue (light) to red (heavy traffic), busiest on CA 44

Shasta County, California Traffic Counts

Traffic analytics for Shasta County, California, calculated from real-world mobile and sensor networks on 10,699 road segments (799 road miles, about 394 ft each). About 1 in 8 vehicles here is a truck, against 1 in 13 across California. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
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 Shasta County, California

Traffic

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

vehicles per day5,129
Trucks

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

12.3%
Average travel time

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

30.8 min
Congestion ratio

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

18.2%
Drivers’ average age

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

47.5 yrs
Drivers’ average income

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

$77,354

Our data shows 5,129 vehicles per day on the average road in Shasta County, California, and 3,941,778 vehicle-miles traveled per day (≈1.4 billion per year) across its 799 miles of monitored roads. About 1 in 8 vehicles is a truck, well above the 7.8% across California - a freight-heavy mix.

Shorter trips than 91% of counties in California

At 5,129 vehicles per day, the average monitored road in Shasta carries 60% 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. Network-wide, Shasta accounts for about 0.4% of California's statewide total of vehicle-miles. By volume, Shasta's 5,129 vehicles per day trails 70% of counties in California.

At 30.8 minutes, the average travel time is 11% lower than the state level. On travel time, Shasta runs shorter than 91% of counties in California.

Congestion runs 34% lower than the state level, at a ratio of 18.2%, which means smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Shasta County, California

Trafficvehicles per day7,640
Trucks17.8%
Average travel time37.5 min
Congestion ratio28.8%
Drivers’ average age48.6 yrs
Drivers’ average income$75,695

A little more than half of the driving in Shasta County, California happens on highways: 56% of all vehicle-miles. The average highway carries 7,640 vehicles per day, 59% more than the average non-highway road in the same area, which carries 4,812 vehicles per day.

Highways make up 32% of the monitored road miles (256 miles, 1,198 segments), so they carry more than their share: 2,209,825 vehicle-miles traveled per day (≈807 million per year).

Freight-heavy highways

The concentration of trucks on highways (17.8%) is 71% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.

78% of counties in California see a lower highway truck share than Shasta's 17.8%. By raw truck volume, Shasta carries fewer highway trucks than 73% of counties in California.

non-highway traffic icon

Non-highway Traffic in Shasta County, California

Trafficvehicles per day4,812
Trucks5.3%
Average travel time29.9 min
Congestion ratio16.9%
Drivers’ average age47.0 yrs
Drivers’ average income$78,540

A significant share of driving in Shasta County, California, 44% of vehicle-miles, happens on local roads. A typical local road sees 4,812 vehicles per day.

Local roads make up 68% of the monitored road miles (543 miles in 9,501 segments) but carry less than their share of travel: 1,731,953 vehicle-miles traveled per day (≈632 million per year). About 1 in 19 vehicles on non-highway roads is a truck (5.3%).

Drivers from lower-income areas than 74% of counties in California

Compared to highways, non-highway routes see 70% fewer trucks by share.

The non-highway congestion ratio of 16.9% is 36% lower than the state level, suggesting more efficient local mobility than the state average.

Trip origins here have lower average income than 74% of counties in California. Shasta's median driver age is higher than 70% of counties in California.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and a long afternoon plateau from 2:00 PM to 8:00 PM, with volumes reaching approximately 71% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 23% 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 +10% versus the annual average.
Lowest month:
February is the quietest month, with volumes -29% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Shasta County, California, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +10% in high season.

Shasta County vs. California Traffic Comparison

Of the four measures, highway truck share differs most: Shasta County runs 71% above the California average. Its average daily traffic per road, by contrast, is 60% below.

MetricShasta CountyCalifornia averageDifference
Traffic5,12912,766-59.8%
Truck % (Total Traffic)12.3%7.8%+58.7%
Truck % (Highway)17.8%10.4%+71.5%
Avg. Travel Time30.8 min34.5 min-10.8%

How Shasta County compares

Shasta County has the shortest trips among its nearby counties

Set against the average of the 4 areas nearest to it, Shasta County is 48.9% more congested and sees 21.3% shorter typical trips; it has the second busiest roads of the five. Busier roads and shorter trips together - destinations here sit closer to one another than in the areas around it.

Shasta 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
Shasta County5,12912.3%3,941,77830.8 min18.2%
Tehama County, California3,66216.2%1,770,11834.9 min12.8%
Trinity County, California2,09224.1%206,15349.0 min5.7%
Siskiyou County, California2,78421.7%2,457,29538.3 min8.7%
Butte County, California7,1496.9%3,985,32934.2 min21.7%
California average12,7667.8%N/A34.5 min27.4%

Shasta County ranked within California

Shasta County sits in the bottom quarter of the California field on average travel time, at #53 of 58.

Shasta County ranked among 58 county-level areas in California (1 = highest); measures without data in every county rank a smaller field, down to 52.
MeasureShasta CountyCalifornia rank
Traffic volume (AADT)5,129#41 of 58
Highway vehicle-miles per day2,209,825#31 of 52
Truck share on highways17.8%#12 of 52
Highway trucks per day1,360#38 of 52
Average travel time30.8 min#53 of 58
Average driver income$77,354#43 of 58
Average driver age47.5 yrs#18 of 58

Shasta County ranks #12 of 52 on truck share on highways but #53 of 58 on average travel time - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Shasta County, California

Traffic concentrates on a few corridors: the three busiest roads average 29,585 vehicles a day, against 5,129 on the average road in Shasta County.

CA 44 leads with 38,051 vehicles a day, 2,602 of them trucks (6.8%). Cascade Wonderland Highway carries the most trucks, 5,285 a day (19.7% of its traffic), although it ranks #2 for all traffic.

Few trucks use Bonnyview Road: 4.8% of its traffic, under half the county's 12.3%.

Trucks make up 19.7% of traffic on Cascade Wonderland Highway, against 12.3% across all roads in the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1CA 44Motorway · 38,051vehicles2,602trucks · 6.8%
Road class
Motorway
Congestion ratio
32.1%
Median trip time
27.0 min
Drivers’ median age
48.9 yrs
Drivers’ average income
$76,419

CA 44 is a trunk route for the county, carrying 7.4 times the county average on its busiest stretch; trucks are 6.8% of it, below the county-wide 12.3%.

2Cascade Wonderland HighwayMotorway · 26,872vehicles5,285trucks · 19.7%
Road class
Motorway
Congestion ratio
27.6%
Median trip time
37.4 min
Drivers’ median age
48.7 yrs
Drivers’ average income
$71,803

Cascade Wonderland Highway carries 5.2 times the county average at its busiest, 5,285 of them trucks (19.7%, above the county-wide 12.3%).

3Bonnyview RoadSecondary road · 23,830vehicles1,152trucks · 4.8%
Road class
Secondary road
Congestion ratio
52.2%
Median trip time
31.2 min
Drivers’ median age
48.0 yrs
Drivers’ average income
$77,703

Bonnyview Road is one of the more congested roads here: trips take 52% longer than at free-flow speed, against 18% county-wide.

4Lake BoulevardPrimary road · 20,716vehicles987trucks · 4.8%
Road class
Primary road
Congestion ratio
25.0%
Median trip time
31.7 min
Drivers’ median age
47.7 yrs
Drivers’ average income
$73,783

Lake Boulevard carries 4.0 times the county average on its busiest stretch, where the median trip lasts 31.7 minutes.

5Tehama StreetTrunk road · 17,769vehicles907trucks · 5.1%
Road class
Trunk road
Congestion ratio
38.4%
Median trip time
23.6 min
Drivers’ median age
49.0 yrs
Drivers’ average income
$74,711

At 3.5 times the county average, Tehama Street draws drivers from neighborhoods averaging $74,711 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Cascade Wonderland HighwayMotorway · #2 by traffic26,872vehicles5,285trucks · 19.7%
2CA 44Motorway · #1 by traffic38,051vehicles2,602trucks · 6.8%
3Bonnyview RoadSecondary road · #3 by traffic23,830vehicles1,152trucks · 4.8%
4Eureka WayTrunk road · 8,777vehicles1,121trucks · 12.8%
Road class
Trunk road
Congestion ratio
32.3%
Median trip time
30.6 min
Drivers’ median age
48.1 yrs
Drivers’ average income
$82,295

Eureka Way carries 71% more than the county average on its busiest stretch, where the median trip lasts 30.6 minutes.

5Market StreetPrimary road · 16,483vehicles1,092trucks · 6.6%
Road class
Primary road
Congestion ratio
41.6%
Median trip time
29.6 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$75,215

Delays build on Market Street: its congestion ratio of 42% over free-flow time is well above the county's 18%.

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

ShastaDepartment 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 Shasta County

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

Need segment-level traffic data?

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