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Traffic heat map of Plumas County, California: 265 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Sierra Avenue and Main Street

Plumas County, California Traffic Counts

How busy are the roads of Plumas County, California? We measure 265 road miles, divided into 1,761 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, Sierra Avenue, carries 7,719 vehicles a day, 3.2 times the average road. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
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 Plumas County, California

Traffic

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

vehicles per day2,410
Trucks

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

8.9%
Average travel time

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

37.2 min
Congestion ratio

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

9.4%
Drivers’ average age

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

56.8 yrs
Drivers’ average income

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

$77,279

Our data shows 2,410 vehicles per day on the average road in Plumas County, California, and 470,473 vehicle-miles traveled per day (≈172 million per year) across its 265 miles of monitored roads. Trucks are 8.9% of traffic, close to the 7.8% across California.

Quieter roads than 93% of counties in California

Plumas's average daily traffic volume is 81% lower than the state average - 2,410 vehicles per day against 12,766 - suggesting less traffic load per road - very light roads: easy truck access, but little passing trade for roadside retail. Network-wide, Plumas accounts for less than 0.1% of California's statewide total of vehicle-miles. 93% of counties in California see more traffic than Plumas's 2,410 vehicles per day.

Journey times run 8% higher than the state level, at 37.2 minutes on average. Its average travel time of 37.2 minutes is longer than 82% of counties in California.

Congestion runs 66% lower than the state level, at a ratio of 9.4%, which means smoother traffic flow - delays are rare enough to plan travel times almost to the minute.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
A long morning plateau from 8:00 AM to 12:00 PM and a long afternoon plateau from 1:00 PM to 5:00 PM, with volumes reaching approximately 79% higher than the daily average.
Weekend traffic:
Weekend traffic is about as busy as on weekdays (+1%): leisure and through trips largely replace the commute.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
July–September is the high season, with volumes +42% versus the annual average.
Lowest month:
March is the quietest month, with volumes -70% versus the annual average.

Data Finding: Hourly & Seasonal Patterns

In Plumas County, California, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +42% in high season.

Plumas County vs. California Traffic Comparison

Plumas County's biggest difference from the California average is its average daily traffic per road, 81% below it.

MetricPlumas CountyCalifornia averageDifference
Traffic2,41012,766-81.1%
Truck % (Total Traffic)8.9%7.8%+14.9%
Avg. Travel Time37.2 min34.5 min+7.9%

How Plumas County compares

Plumas County against nearby counties

Compared with its 4 closest neighbours, Plumas County moves 22.7% of the total daily travel and carries 43.5% less traffic on a typical road; it has the fourth busiest roads of the five. Less traffic and more room for it - the roads here run both quieter and freer than the areas around them.

Plumas 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
Plumas County2,4108.9%470,47337.2 min9.4%
Lassen County, California3,12212.2%1,133,55041.2 min9.0%
Sierra County, California1,74114.3%251,98062.2 min4.8%
Butte County, California7,1496.9%3,985,32934.2 min21.7%
Nevada County, California5,05712.8%2,915,32232.3 min15.8%
California average12,7667.8%N/A34.5 min27.4%

Plumas County ranked within California

Average driver age places Plumas County #4 of 58 in California - the top quarter of the state.

Plumas County ranked among 58 county-level areas in California (1 = highest).
MeasurePlumas CountyCalifornia rank
Traffic volume (AADT)2,410#54 of 58
Average travel time37.2 min#11 of 58
Average driver income$77,279#44 of 58
Average driver age56.8 yrs#4 of 58

The two ends of this table sit far apart: #4 of 58 on average driver age, against #54 of 58 on average daily traffic volume.

Busiest roads in Plumas County, California

Traffic concentrates on a few corridors: the three busiest roads average 7,341 vehicles a day, against 2,410 on the average road in Plumas County.

Sierra Avenue leads with 7,719 vehicles a day, 450 of them trucks (5.8%). Crescent Street carries the most trucks, 696 a day (12.1% of its traffic), although it ranks #5 for all traffic.

Drivers on Gulling Street come from neighborhoods with an average household income of $46,266, 40% below the county average of $77,279.

Trips using Feather River Highway are long: a median of 53.5 minutes against 37.2 county-wide, the mark of a through route.

Gulling Street is busy with cars rather than freight: only 4.1% of its traffic is trucks, against 8.9% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Sierra AvenuePrimary road · 7,719vehicles450trucks · 5.8%
Road class
Primary road
Median trip time
48.5 min
Drivers’ median age
55.9 yrs
Drivers’ average income
$50,064

Drivers on Sierra Avenue are on long journeys, a median 48.5 minutes against 37.2 county-wide: a through route more than a local street.

2Main StreetPrimary road · 7,455vehicles678trucks · 9.1%
Road class
Primary road
Congestion ratio
9.2%
Median trip time
36.0 min
Drivers’ median age
54.8 yrs
Drivers’ average income
$76,502

On its busiest stretch, Main Street carries 3.1 times the county average; trucks are 9.1% of it, in line with the county-wide 8.9%.

3Gulling StreetSecondary road · 6,848vehicles280trucks · 4.1%
Road class
Secondary road
Median trip time
28.8 min
Drivers’ median age
56.2 yrs
Drivers’ average income
$46,266

Gulling Street peaks at 6,848 vehicles a day, 2.8 times the county average; trucks are 4.1% of it, below the county-wide 8.9%.

4Lawrence StreetPrimary road · 5,755vehicles654trucks · 11.4%
Road class
Primary road
Congestion ratio
18.9%
Median trip time
33.7 min
Drivers’ median age
56.2 yrs
Drivers’ average income
$76,583

Travel on Lawrence Street's busiest stretch runs 19% over free-flow time, against 9% across the county, so expect slower peak hours.

5Crescent StreetPrimary road · 5,753vehicles696trucks · 12.1%
Road class
Primary road
Congestion ratio
13.1%
Median trip time
28.6 min
Drivers’ median age
54.4 yrs
Drivers’ average income
$76,575

Crescent Street carries 2.4 times the county average at its busiest, 696 of them trucks (12.1%, above the county-wide 8.9%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1Crescent StreetPrimary road · #5 by traffic5,753vehicles696trucks · 12.1%
2Main StreetPrimary road · #2 by traffic7,455vehicles678trucks · 9.1%
3Lawrence StreetPrimary road · #4 by traffic5,755vehicles654trucks · 11.4%
4CA 70Primary road · 5,716vehicles491trucks · 8.6%
Road class
Primary road
Median trip time
45.3 min
Drivers’ median age
55.9 yrs
Drivers’ average income
$58,519

CA 70 carries 2.4 times the county average on its busiest stretch, where the median trip lasts 45.3 minutes.

5Feather River HighwayPrimary road · 4,919vehicles450trucks · 9.2%
Road class
Primary road
Congestion ratio
11.6%
Median trip time
53.5 min
Drivers’ median age
55.5 yrs
Drivers’ average income
$51,668

At 2.0 times the county average, Feather River Highway draws drivers from neighborhoods averaging $51,668 in household income.

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

PlumasDepartment 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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TrafficZoom platform

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Map AI

— demographics, housing and mobility data.

Counties near Plumas County

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

Need segment-level traffic data?

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