This page delivers traffic analytics for Twin Falls County, Idaho. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Twin Falls County, Idaho among 410 road miles divided in 6,517 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 332 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.
5,757
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
6.2%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
35.8 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.
16.7%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
44.3 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$70,915
Our data indicates an estimated average traffic volume of 5,757 vehicles per day in Twin Falls County, Idaho that results in 1,688,761 vehicle-miles traveled per day (≈616 million per year). The traffic stream is comprised of an average of 1 truck for every 16 vehicles. Typical time spent behind the wheel per trip is 35.8 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Idaho state averages: Twin Falls's average daily traffic volume of 5,757 vehicles per day is on par with the state average of 5,734 - a critical factor for logistics and site planning. In total volume terms, its road network carries 1,688,761 vehicle-miles traveled per day (≈616 million per year), about 3.7% of Idaho's statewide total. The average trip takes 35.8 minutes, 6% higher than the state level. The congestion ratio of 16.7% is 4% higher, pointing to more pronounced congestion than the state level - crucial for traffic control improvement and logistics planning. Twin Falls carries more traffic than 86% of counties in Idaho. Its average travel time of 35.8 minutes is longer than 74% of counties in Idaho.
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.
8,138
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
10.6%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
35.9 min
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
44.5 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$73,772
A significant volume of traffic in Twin Falls County, Idaho utilizes the highway network. The average highway carries 8,138 vehicles per day, 44% more than the average non-highway road in the same area, which carries 5,647 vehicles per day. That average covers 52 highway road miles divided in 287 segments (average segment length 965 ft), together carrying 342,173 vehicle-miles traveled per day (≈125 million per year). Trucks constitute 10.6% of highway traffic.
Analytical insight
Highway truck concentration here runs 25% lower than the state average, at 10.6% - positioning Twin Falls as a primarily local traffic hub. For logistics operators, this validates the importance of local access. 47% of counties in Idaho see a lower highway truck share than Twin Falls's 10.6%. By raw truck volume, Twin Falls carries more highway trucks than 50% of counties in Idaho.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
5,647
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
5.1%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
35.7 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.
16.7%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
44.3 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$70,492
The non-highway road network in Twin Falls County, Idaho supports a substantial volume of traffic. The average non-highway road carries 5,647 vehicles per day, 31% less than the average highway in the same area, which carries 8,138 vehicles per day. That average covers 358 non-highway road miles divided in 6,230 segments (average segment length 303 ft), together carrying 1,346,589 vehicle-miles traveled per day (≈492 million per year). Trucks constitute 5.1% of non-highway traffic.
Analytical insight
Non-highway roads carry a truck concentration that's 52% lower than the highway network. The non-highway congestion ratio of 16.7% is 2% higher than the state level, suggesting slower local mobility than the state average. Overall, average travel time here is longer than 74% of counties in Idaho. Twin Falls's average driver income exceeds 51% of counties in Idaho. Twin Falls's median driver age is higher than 40% of counties in Idaho.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 8:00 AM–12:00 PM and PM peak 3:00 PM–6:00 PM, with volumes reaching approximately 78% higher than the daily average.
Weekend traffic:
Weekend volumes run about 22% below weekday levels.
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +10% versus the annual average.
Lowest month:
January is the quietest month, with volumes -15% versus the annual average.
Analytical insight
In Twin Falls County, Idaho, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is pronounced at +10% in high season.
Traffic Flow Profile Comparison
Metric
Twin Falls
Idaho
Average
Difference
Traffic
5,757
5,734
+0.4%
Truck % (Total Traffic)
6.2%
9.7%
-35.4%
Truck % (Highway)
10.6%
14.1%
-24.6%
Avg. Travel Time
35.8 min
33.8 min
+5.7%
Frequently Asked Questions
The average daily traffic volume is calculated at 5,757 vehicles per day, providing a baseline for daily operations and site assessment.
Twin Falls carries more traffic than 86% of counties in Idaho, averaging 5,757 vehicles per day.
Approximately 20% of highway traffic and 5% of non-highway traffic consists of vehicles whose trip originates outside Twin Falls County, Idaho. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
Traffic volumes are typically 10% higher during June–August. Volumes drop to their lowest levels in January, averaging 4,871 vehicles per day - a 15% decrease from the annual average.
The average travel time for drivers is 35.8 minutes, offering a standard metric for commute and delivery route planning.
Trucks account for approximately 6.2% of the total traffic mix across all road types, with a significantly higher concentration of 10.6% 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)
