This page delivers traffic analytics for San Luis Obispo County, California. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for San Luis Obispo County, California among 970 road miles divided in 15,962 segments. Our metrics go beyond simple volume counts to provide actionable insights on traffic intensity, congestion, commercial vehicle flow, and network performance with highest possible granularity (average segment length is 321 ft). Whether you are evaluating a new retail location, planning logistics routes, or assessing infrastructure needs, this data helps you move from assumptions to certainty.
Data sourced from TrafficZoom's proprietary analytics platform.
The average number of vehicles that travel each day over any road in the road network.
6,561
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
7.0%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
32.3 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
18.3%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
45.2 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$99,111
Our data indicates an estimated average traffic volume of 6,561 vehicles per day in San Luis Obispo County, California that results in 8,188,448 vehicle-miles traveled per day (≈3.0 billion per year). The traffic stream is comprised of an average of 1 truck for every 14 vehicles. Typical time spent behind the wheel per trip is 32.3 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the California state averages: San Luis Obispo's average daily traffic volume is 49% lower than the state average - 6,561 vehicles per day against 12,766 - suggesting less traffic load per road, a critical factor for logistics and site planning. Across the whole network that adds up to 8,188,448 vehicle-miles traveled per day (≈3.0 billion per year), roughly 0.9% of California's statewide total. Journey times run 6% lower than the state level, at 32.3 minutes on average. At 33% lower than the state level, the 18.3% congestion ratio signals smoother traffic flow - crucial for traffic control improvement and logistics planning. 54% of counties in California see less traffic than San Luis Obispo's 6,561 vehicles per day. 21% of counties in California have a shorter average travel time than San Luis Obispo's 32.3 minutes.
Highway vs. Non-Highway Traffic Analysis
Highway Traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
19,015
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
8.3%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
39.2 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
42.7%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
45.1 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$99,287
A significant volume of traffic in San Luis Obispo County, California utilizes the highway network. The average highway carries 19,015 vehicles per day, 227% more than the average non-highway road in the same area, which carries 5,814 vehicles per day. That average covers 286 highway road miles divided in 904 segments (average segment length 1,671 ft), together carrying 5,192,203 vehicle-miles traveled per day (≈1.9 billion per year). By highway travel volume, San Luis Obispo outranks 67% of counties in California. Trucks constitute 8.3% of highway traffic.
Analytical insight
At 8.3%, highway truck share is 20% lower than the state average, marking San Luis Obispo as a primarily local traffic hub - underscoring the importance of local access for logistics operators. By truck concentration, highways here outrank 24% of counties in California. By raw truck volume, San Luis Obispo carries more highway trucks than 25% of counties in California.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
5,814
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
4.7%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
31.9 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
16.8%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
45.3 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$98,874
The non-highway road network in San Luis Obispo County, California supports a substantial volume of traffic. The average non-highway road carries 5,814 vehicles per day, 69% less than the average highway in the same area, which carries 19,015 vehicles per day. That average covers 684 non-highway road miles divided in 15,058 segments (average segment length 240 ft), together carrying 2,996,245 vehicle-miles traveled per day (≈1.1 billion per year). Trucks constitute 4.7% of non-highway traffic.
Analytical insight
The concentration of trucks on non-highway roads is 43% lower than on highways. Non-highway congestion (16.8%) runs 36% lower than the state average, pointing to smoother local traffic flow. San Luis Obispo's overall average travel time exceeds 21% of counties in California. 58% of counties in California see lower average driver income among trip origins than San Luis Obispo. 53% of counties in California have a younger driver population than San Luis Obispo.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and PM peak 3:00 PM–5:00 PM, with volumes reaching approximately 88% higher than the daily average.
Weekend traffic:
Weekend volumes run about 1% below weekday levels.
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +11% versus the annual average.
Lowest month:
January is the quietest month, with volumes -17% versus the annual average.
Analytical insight
In San Luis Obispo County, California, the peak hour concentrates about 8% of the day's traffic, and seasonal swing is pronounced at +11% in high season.
Traffic Flow Profile Comparison
Metric
San Luis Obispo
California
Average
Difference
Traffic
6,561
12,766
-48.6%
Truck % (Total Traffic)
7.0%
7.8%
-9.8%
Truck % (Highway)
8.3%
10.4%
-19.8%
Avg. Travel Time
32.3 min
34.5 min
-6.3%
Frequently Asked Questions
The average daily traffic volume is calculated at 6,561 vehicles per day, providing a baseline for daily operations and site assessment.
San Luis Obispo carries more highway trucks by raw volume than 25% of counties in California, at roughly 1,582 per day.
Weekday peaks occur between 10:00 AM and 12:00 PM in the morning and between 3:00 PM and 5:00 PM in the evening - about 88% above the daily average.
Trucks account for approximately 7.0% of the total traffic mix across all road types, with a significantly higher concentration of 8.3% on highways.
Drivers on San Luis Obispo roads have a median age of 45 years, and the median household income of the neighborhoods trips originate from averages $99,111 - useful context for retail siting and customer profiling.
Approximately 7% of highway traffic and 0% of non-highway traffic consists of vehicles whose trip originates outside San Luis Obispo County, California. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
The average travel time for drivers is 32.3 minutes, offering a standard metric for commute and delivery route planning.
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)
