This page delivers traffic analytics for Salt Lake County, Utah. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Salt Lake County, Utah among 1,503 road miles divided in 49,888 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 159 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.
12,656
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
5.9%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
32.1 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.
25.7%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
39.1 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$104,848
Our data indicates an estimated average traffic volume of 12,656 vehicles per day in Salt Lake County, Utah that results in 25,179,994 vehicle-miles traveled per day (≈9.2 billion per year). The traffic stream is comprised of an average of 1 truck for every 17 vehicles. Typical time spent behind the wheel per trip is 32.1 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Utah state averages: Salt Lake's average daily traffic volume is 24% higher than the state average - 12,656 vehicles per day against 10,198 - suggesting more traffic load per road, a critical factor for logistics and site planning. Network-wide, Salt Lake accounts for about 29% of Utah's statewide total, at 25,179,994 vehicle-miles traveled per day (≈9.2 billion per year). Journey times here (32.1 minutes on average) closely track the state level. The congestion ratio of 25.7% is 21% higher, pointing to more pronounced congestion than the state level - crucial for traffic control improvement and logistics planning. By volume, Salt Lake's 12,656 vehicles per day outpaces 93% of counties in Utah. 39% of counties in Utah have a shorter average travel time than Salt Lake's 32.1 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.
42,376
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
7.7%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
37.2 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.
54.0%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
39.1 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$104,618
A significant volume of traffic in Salt Lake County, Utah utilizes the highway network. The average highway carries 42,376 vehicles per day, 256% more than the average non-highway road in the same area, which carries 11,891 vehicles per day. That average covers 303 highway road miles divided in 1,252 segments (average segment length 1,276 ft), together carrying 12,368,837 vehicle-miles traveled per day (≈4.5 billion per year). By highway travel volume, Salt Lake ranks first in Utah. Trucks constitute 7.7% of highway traffic.
Analytical insight
Highway truck concentration here runs 37% lower than the state average, at 7.7% - positioning Salt Lake as a primarily local traffic hub. For logistics operators, this validates the importance of local access. 4% of counties in Utah see a lower highway truck share than Salt Lake's 7.7%. Salt Lake's highway truck count is higher than 92% of counties in Utah, at roughly 3,271 trucks per day.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
11,891
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
4.1%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
32.0 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.
25.0%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
39.1 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$105,029
The non-highway road network in Salt Lake County, Utah supports a substantial volume of traffic. The average non-highway road carries 11,891 vehicles per day, 72% less than the average highway in the same area, which carries 42,376 vehicles per day. That average covers 1,201 non-highway road miles divided in 48,636 segments (average segment length 130 ft), together carrying 12,811,157 vehicle-miles traveled per day (≈4.7 billion per year). Trucks constitute 4.1% of non-highway traffic.
Analytical insight
The concentration of trucks on non-highway roads is 47% lower than on highways. Non-highway congestion (25.0%) runs 10% higher than the state average, pointing to slower local traffic flow. Salt Lake's overall average travel time exceeds 39% of counties in Utah. 86% of counties in Utah see lower average driver income among trip origins than Salt Lake. 7% of counties in Utah have a younger driver population than Salt Lake.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–12:00 PM and PM peak 4:00 PM–6:00 PM, with volumes reaching approximately 77% higher than the daily average.
Weekend traffic:
Weekend volumes run about 22% below weekday levels.
Seasonal Fluctuation
Busy season:
August–October is the high season, with volumes +4% versus the annual average.
Lowest month:
November is the quietest month, with volumes -5% versus the annual average.
Analytical insight
In Salt Lake County, Utah, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is mild at +4% in high season.
Traffic Flow Profile Comparison
Metric
Salt Lake
Utah
Average
Difference
Traffic
12,656
10,198
+24.1%
Truck % (Total Traffic)
5.9%
8.9%
-34.3%
Truck % (Highway)
7.7%
12.3%
-37.4%
Avg. Travel Time
32.1 min
32.2 min
-0.2%
Frequently Asked Questions
The average daily traffic volume is calculated at 12,656 vehicles per day, providing a baseline for daily operations and site assessment.
The driver population in Salt Lake skews older than 7% of counties in Utah.
Traffic volumes are typically 4% higher during August–October. Volumes drop to their lowest levels in November, averaging 11,969 vehicles per day - a 5% decrease from the annual average.
Approximately 24% of highway traffic and 1% of non-highway traffic consists of vehicles whose trip originates outside Salt Lake County, Utah. 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 32.1 minutes, offering a standard metric for commute and delivery route planning.
Weekday peaks occur between 7:00 AM and 12:00 PM in the morning and between 4:00 PM and 6:00 PM in the evening - about 77% above the daily average.
Trucks account for approximately 5.9% of the total traffic mix across all road types, with a significantly higher concentration of 7.7% on highways.
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)
