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Traffic heat map of Nevada County, California: 433 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Golden Center Freeway

Nevada County, California Traffic Counts

How busy are the roads of Nevada County, California? We measure 433 road miles, divided into 7,386 segments, with multi-sourced, cross-verified mobile and sensor data. About 1 in 8 vehicles here is a truck, against 1 in 13 across California. 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 Nevada County, California

Traffic

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

vehicles per day5,057
Trucks

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

12.8%
Average travel time

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

32.3 min
Congestion ratio

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

15.8%
Drivers’ average age

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

54.6 yrs
Drivers’ average income

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

$91,854

The average monitored road in Nevada County, California carries 5,057 vehicles per day. Across its 433 miles of monitored roads, that adds up to 2,915,322 vehicle-miles traveled per day (≈1.1 billion per year). About 1 in 8 vehicles is a truck, well above the 7.8% across California - a freight-heavy mix.

Traffic 60% below the California average

Nevada's average daily traffic volume is 60% lower than the state average - 5,057 vehicles per day against 12,766 - suggesting less traffic load per road - quiet roads that suit freight movement more than drive-by retail. Across the whole network, that travel is about 0.3% of California's statewide total. Nevada carries less traffic than 72% of counties in California.

The average trip takes 32.3 minutes, 6% lower than the state level. 75% of counties in California have a longer average travel time than Nevada's 32.3 minutes.

Congestion runs 42% lower than the state level, at a ratio of 15.8%, which means smoother traffic flow - travel times are easy to plan around for scheduled deliveries.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Nevada County, California

Trafficvehicles per day11,104
Trucks18.0%
Average travel time52.0 min
Congestion ratio28.7%
Drivers’ average age53.1 yrs
Drivers’ average income$88,069

A little more than half of the driving in Nevada County, California happens on highways: 59% of all vehicle-miles. The average highway carries 11,104 vehicles per day, 141% more than the average non-highway road in the same area, which carries 4,602 vehicles per day.

Highways make up 29% of the monitored road miles (126 miles, 517 segments), so they carry more than their share: 1,732,286 vehicle-miles traveled per day (≈632 million per year).

Freight-heavy highways

The concentration of trucks on highways (18.0%) is 74% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.

80% of counties in California see a lower highway truck share than Nevada's 18.0%. 57% of counties in California see more highway trucks per day than Nevada's roughly 2,000.

non-highway traffic icon

Non-highway Traffic in Nevada County, California

Trafficvehicles per day4,602
Trucks5.1%
Average travel time30.9 min
Congestion ratio14.8%
Drivers’ average age55.1 yrs
Drivers’ average income$94,233

A significant share of driving in Nevada County, California, 41% of vehicle-miles, happens on local roads. A typical local road sees 4,602 vehicles per day.

Spread over 307 miles and 6,869 segments, 71% of the road network, local roads carry a lighter load per mile: 1,183,036 vehicle-miles traveled per day (≈432 million per year). About 1 in 20 vehicles on non-highway roads is a truck (5.1%).

Older drivers than 86% of counties in California

Non-highway roads carry a truck concentration that's 72% lower than the highway network.

Non-highway congestion (14.8%) runs 44% lower than the state average, pointing to smoother local traffic flow.

53% of counties in California see lower average driver income among trip origins than Nevada. 86% of counties in California have a younger driver population than Nevada.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Nevada County, California, the peak hour concentrates about 8% of the day's traffic.

Nevada County vs. California Traffic Comparison

The highway truck share sets Nevada County apart: 74% above the California average. Its truck share is also 64% above.

MetricNevada CountyCalifornia averageDifference
Traffic5,05712,766-60.4%
Truck % (Total Traffic)12.8%7.8%+64.4%
Truck % (Highway)18.0%10.4%+73.5%
Avg. Travel Time32.3 min34.5 min-6.3%

How Nevada County compares

Nevada County has a higher truck share than any nearby county

Nevada County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the quietest roads of the five. Smaller and quieter on both counts: a shorter network than the areas around it, carrying lighter traffic across it.

Nevada 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
Nevada County5,05712.8%2,915,32232.3 min15.8%
Yuba County, California5,8588.6%1,639,64933.0 min18.0%
Placer County, California8,9677.9%11,780,50230.8 min24.3%
Sutter County, California6,4538.8%2,634,83332.6 min15.3%
El Dorado County, California5,3146.4%4,239,40830.3 min14.9%
California average12,7667.8%N/A34.5 min27.4%

Nevada County ranked within California

Nevada County sits in the top quarter of the California field on average driver age, at #9 of 58.

Nevada County ranked among 58 county-level areas in California (1 = highest); measures without data in every county rank a smaller field, down to 52.
MeasureNevada CountyCalifornia rank
Traffic volume (AADT)5,057#42 of 58
Highway vehicle-miles per day1,732,286#36 of 52
Truck share on highways18.0%#11 of 52
Highway trucks per day2,000#30 of 52
Average travel time32.3 min#44 of 58
Average driver income$91,854#28 of 58
Average driver age54.6 yrs#9 of 58

The two ends of this table sit far apart: #9 of 58 on average driver age, against #44 of 58 on average travel time.

Busiest roads in Nevada County, California

On their busiest stretches, the three busiest roads in Nevada County carry 33,168 vehicles a day on average, 6.6 times the typical road in the county (5,057).

Golden Center Freeway leads with 34,360 vehicles a day, 1,993 of them trucks (5.8%). Alan S. Hart Freeway carries the most trucks, 7,305 a day (22.0% of its traffic), although it ranks #2 for all traffic.

Alan S. Hart Freeway carries longer journeys than most roads here, with a median trip of 60.6 minutes against 32.3 county-wide.

Drivers on California Highway 267 come from neighborhoods with an average household income of $126,594, 38% above the county average of $91,854.

Trucks make up 22.0% of traffic on Alan S. Hart Freeway, against 12.8% across all roads in the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Golden Center FreewayMotorway · 34,360vehicles1,993trucks · 5.8%
Road class
Motorway
Congestion ratio
41.0%
Median trip time
30.6 min
Drivers’ median age
56.6 yrs
Drivers’ average income
$77,509

Travel on Golden Center Freeway's busiest stretch runs 41% over free-flow time, against 16% across the county, so expect slower peak hours.

2Alan S. Hart FreewayMotorway · 33,187vehicles7,305trucks · 22.0%
Road class
Motorway
Congestion ratio
35.2%
Median trip time
60.6 min
Drivers’ median age
47.8 yrs
Drivers’ average income
$95,684

A main artery: Alan S. Hart Freeway's busiest stretch carries 6.6 times the county average; trucks are 22.0% of it, above the county-wide 12.8%.

3CA 49Primary road · 31,956vehicles1,766trucks · 5.5%
Road class
Primary road
Congestion ratio
36.0%
Median trip time
36.0 min
Drivers’ median age
54.9 yrs
Drivers’ average income
$93,644

CA 49 is one of the more congested roads here: trips take 36% longer than at free-flow speed, against 16% county-wide.

4Eric Rood Memorial ExpresswayTrunk road · 20,770vehicles1,347trucks · 6.5%
Road class
Trunk road
Congestion ratio
28.0%
Median trip time
30.7 min
Drivers’ median age
56.9 yrs
Drivers’ average income
$79,770

Eric Rood Memorial Expressway carries 4.1 times the county average on its busiest stretch, where the median trip lasts 30.7 minutes.

5California Highway 267Primary road · 13,701vehicles523trucks · 3.8%
Road class
Primary road
Median trip time
28.5 min
Drivers’ median age
50.0 yrs
Drivers’ average income
$126,594

At 2.7 times the county average, California Highway 267 draws drivers from neighborhoods averaging $126,594 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Alan S. Hart FreewayMotorway · #2 by traffic33,187vehicles7,305trucks · 22.0%
2Golden Center FreewayMotorway · #1 by traffic34,360vehicles1,993trucks · 5.8%
3CA 49Primary road · #3 by traffic31,956vehicles1,766trucks · 5.5%
4Eric Rood Memorial ExpresswayTrunk road · #4 by traffic20,770vehicles1,347trucks · 6.5%
5CA 20Trunk road · 12,319vehicles959trucks · 7.8%
Road class
Trunk road
Median trip time
36.0 min
Drivers’ median age
57.4 yrs
Drivers’ average income
$89,781

The busiest stretch of CA 20 carries 2.4 times the county average; trucks are 7.8% of it, below the county-wide 12.8%.

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

NevadaDepartment 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 Nevada County

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

Need segment-level traffic data?

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