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Traffic heat map of Lake County, California: 279 miles of roads shaded from blue (light) to red (heavy traffic), busiest on CA 29 and 11th Street

Lake County, California Traffic Counts

Traffic analytics for Lake County, California, calculated from real-world mobile and sensor networks on 3,459 road segments (279 road miles, about 426 ft each). The average road here carries 6,159 vehicles a day, 52% less than the California average of 12,766. 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 icon

Total Traffic Volume & Performance in Lake County, California

Traffic

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

vehicles per day6,159
Trucks

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

7.4%
Average travel time

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

38.4 min
Congestion ratio

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

19.1%
Drivers’ average age

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

49.9 yrs
Drivers’ average income

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

$69,231

The average monitored road in Lake County, California carries 6,159 vehicles per day. Across its 279 miles of monitored roads, that adds up to 1,447,766 vehicle-miles traveled per day (≈528 million per year). About 1 in 14 vehicles is a truck, in line with California (7.8%).

Longer trips than 88% of counties in California

At 6,159 vehicles per day, the average monitored road in Lake carries 52% 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. In total volume terms, its road network carries about 0.2% of California's statewide total of vehicle-miles. By volume, Lake's 6,159 vehicles per day trails 56% of counties in California.

The average trip takes 38.4 minutes, 11% higher than the state level. Its average travel time of 38.4 minutes is longer than 88% of counties in California.

At 30% lower than the state level, the 19.1% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Lake County, California

Trafficvehicles per day9,468
Trucks8.5%
Average travel time32.6 min
Congestion ratio25.2%
Drivers’ average age50.6 yrs
Drivers’ average income$67,158

A significant share of driving in Lake County, California, 41% of vehicle-miles, happens on highways. The average highway carries 9,468 vehicles per day, 67% more than the average non-highway road in the same area, which carries 5,659 vehicles per day.

With 27% of the road miles (74 miles in 454 segments), highways punch above their length, carrying 590,015 vehicle-miles traveled per day (≈215 million per year).

Fewer highway trucks than 88% of counties in California

The concentration of trucks on highways (8.5%) is 18% lower than the state average for similar road classifications. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

Lake's highway truck share (8.5%) is lower than 71% of counties in California. 88% of counties in California see more highway trucks per day than Lake's roughly 809.

non-highway traffic icon

Non-highway Traffic in Lake County, California

Trafficvehicles per day5,659
Trucks6.6%
Average travel time39.3 min
Congestion ratio18.2%
Drivers’ average age49.5 yrs
Drivers’ average income$70,641

Local roads carry more than half of all travel in Lake County, California (59% of vehicle-miles). On the average non-highway road, that comes to 5,659 vehicles per day.

Local roads also make up about 73% of the monitored road miles: 205 miles in 3,005 segments, together carrying 857,751 vehicle-miles traveled per day (≈313 million per year). Trucks make up 6.6% of non-highway traffic, about 1 in 15 vehicles.

Drivers from lower-income areas than 89% of counties in California

Compared to highways, non-highway routes see 23% fewer trucks by share.

At 31% lower than the state level, the non-highway congestion ratio of 18.2% signals easier movement on local roads.

Trip origins here have lower average income than 89% of counties in California. Lake's median driver age is higher than 75% of counties in California.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Lake County, California, the peak hour concentrates about 7% of the day's traffic.

Lake County vs. California Traffic Comparison

The average daily traffic per road sets Lake County apart: 52% below the California average. Its highway truck share is also 18% below.

MetricLake CountyCalifornia averageDifference
Traffic6,15912,766-51.8%
Truck % (Total Traffic)7.4%7.8%-4.8%
Truck % (Highway)8.5%10.4%-17.7%
Avg. Travel Time38.4 min34.5 min+11.4%

How Lake County compares

Lake County against nearby counties

Against the 4 nearest areas, Lake County moves 37.0% of the total daily travel and runs 6.4 percentage points less truck traffic; it has the third 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.

Lake 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
Lake County6,1597.4%1,447,76638.4 min19.1%
Colusa County, California3,19121.1%1,487,58839.5 min10.1%
Glenn County, California2,80319.2%1,075,54233.3 min11.7%
Mendocino County, California7,3048.3%2,422,66232.1 min15.7%
Sonoma County, California10,6676.5%10,645,61432.4 min28.9%
California average12,7667.8%N/A34.5 min27.4%

Lake County ranked within California

Lake County sits in the bottom quarter of the California field on highway travel volume, at #48 of 52.

Lake County ranked among 58 county-level areas in California (1 = highest); measures without data in every county rank a smaller field, down to 52.
MeasureLake CountyCalifornia rank
Traffic volume (AADT)6,159#33 of 58
Highway vehicle-miles per day590,015#48 of 52
Truck share on highways8.5%#37 of 52
Highway trucks per day809#46 of 52
Average travel time38.4 min#8 of 58
Average driver income$69,231#52 of 58
Average driver age49.9 yrs#15 of 58

The two ends of this table sit far apart: #8 of 58 on average travel time, against #48 of 52 on highway travel volume.

Busiest roads in Lake County, California

Traffic concentrates on a few corridors: the three busiest roads average 15,121 vehicles a day, against 6,159 on the average road in Lake County.

CA 29 is the busiest road, at 17,007 vehicles a day, 1,094 of them trucks (6.4%). It tops the truck ranking too, with the most trucks.

Drivers on Calistoga Street come from neighborhoods with an average household income of $118,140, 71% above the county average of $69,231, while those on CA 53 average $51,479, 26% below it.

11th Street carries longer journeys than most roads here, with a median trip of 66.4 minutes against 38.4 county-wide.

Few trucks use 11th Street: 3.4% of its traffic, under half the county's 7.4%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1CA 29Trunk road · 17,007vehicles1,094trucks · 6.4%
Road class
Trunk road
Congestion ratio
40.5%
Median trip time
29.8 min
Drivers’ median age
51.7 yrs
Drivers’ average income
$75,685

Delays build on CA 29: its congestion ratio of 40% over free-flow time is well above the county's 19%.

211th StreetSecondary road · 14,923vehicles512trucks · 3.4%
Road class
Secondary road
Congestion ratio
35.9%
Median trip time
66.4 min
Drivers’ median age
48.9 yrs
Drivers’ average income
$74,558

11th Street carries 2.4 times the county average on its busiest stretch, where the median trip lasts 66.4 minutes.

3CA 53Trunk road · 13,433vehicles806trucks · 6.0%
Road class
Trunk road
Congestion ratio
24.7%
Median trip time
29.0 min
Drivers’ median age
51.7 yrs
Drivers’ average income
$51,479

At 2.2 times the county average, CA 53 draws drivers from neighborhoods averaging $51,479 in household income.

4CA 20Primary road · 12,964vehicles885trucks · 6.8%
Road class
Primary road
Congestion ratio
36.6%
Median trip time
41.9 min
Drivers’ median age
49.7 yrs
Drivers’ average income
$60,691

Travel on CA 20's busiest stretch runs 37% over free-flow time, against 19% across the county, so expect slower peak hours.

5CA 29 / CA 175Trunk road · 12,796vehicles979trucks · 7.7%
Road class
Trunk road
Congestion ratio
28.4%
Median trip time
29.6 min
Drivers’ median age
50.5 yrs
Drivers’ average income
$73,127

The busiest stretch of CA 29 / CA 175 carries 2.1 times the county average; trucks are 7.7% of it, in line with the county-wide 7.4%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1CA 29Trunk road · #1 by traffic17,007vehicles1,094trucks · 6.4%
2CA 29 / CA 175Trunk road · #5 by traffic12,796vehicles979trucks · 7.7%
3CA 20Primary road · #4 by traffic12,964vehicles885trucks · 6.8%
4Calistoga StreetPrimary road · 11,657vehicles862trucks · 7.4%
Road class
Primary road
Congestion ratio
27.7%
Median trip time
32.9 min
Drivers’ median age
51.3 yrs
Drivers’ average income
$118,140

Calistoga Street carries 89% more than the county average on its busiest stretch, where the median trip lasts 32.9 minutes.

5CA 53Trunk road · #3 by traffic13,433vehicles806trucks · 6.0%
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

LakeDepartment 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 Lake County

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

Need segment-level traffic data?

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