This page delivers traffic analytics for Ada County, Idaho. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Ada County, Idaho among 975 road miles divided in 28,549 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 180 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.
9,292
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
6.3%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
32.6 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.
22.5%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
43.7 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$91,996
Our data indicates an estimated average traffic volume of 9,292 vehicles per day in Ada County, Idaho that results in 9,986,228 vehicle-miles traveled per day (≈3.6 billion 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 32.6 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Idaho state averages: Ada sees 62% higher average daily traffic volume than the state average (9,292 vehicles per day against 5,734), suggesting more demand on each road - a critical factor for logistics and site planning. In total volume terms, its road network carries 9,986,228 vehicle-miles traveled per day (≈3.6 billion per year), about 22% of Idaho's statewide total. The average trip takes 32.6 minutes, 4% lower than the state level. At 41% higher than the state level, the 22.5% congestion ratio signals more pronounced congestion - crucial for traffic control improvement and logistics planning. At 9,292 vehicles per day, Ada posts the highest average traffic volume in Idaho. On travel time, Ada runs longer than 42% 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.
30,750
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
10.0%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
33.8 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.
52.1%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
44.2 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$87,984
A significant volume of traffic in Ada County, Idaho utilizes the highway network. The average highway carries 30,750 vehicles per day, 245% more than the average non-highway road in the same area, which carries 8,923 vehicles per day. That average covers 104 highway road miles divided in 482 segments (average segment length 1,140 ft), together carrying 3,407,141 vehicle-miles traveled per day (≈1.2 billion per year). No county in Idaho moves more traffic on its highways. Trucks constitute 10.0% of highway traffic.
Analytical insight
At 10.0%, highway truck share is 29% lower than the state average, marking Ada as a primarily local traffic hub - underscoring the importance of local access for logistics operators. By truck concentration, highways here outrank 32% of counties in Idaho. At roughly 3,286 trucks per day, Ada carries the highest volume of highway trucks in Idaho.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
8,923
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
4.3%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
32.6 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.
22.0%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
43.5 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$93,898
The non-highway road network in Ada County, Idaho supports a substantial volume of traffic. The average non-highway road carries 8,923 vehicles per day, 71% less than the average highway in the same area, which carries 30,750 vehicles per day. That average covers 871 non-highway road miles divided in 28,067 segments (average segment length 164 ft), together carrying 6,579,087 vehicle-miles traveled per day (≈2.4 billion per year). Trucks constitute 4.3% of non-highway traffic.
Analytical insight
The concentration of trucks on non-highway roads is 57% lower than on highways. Non-highway congestion (22.0%) runs 34% higher than the state average, pointing to slower local traffic flow. Overall, average travel time here is longer than 42% of counties in Idaho. 98% of counties in Idaho see lower average driver income among trip origins than Ada. Ada's median driver age is higher than 30% of counties in Idaho.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–12:00 PM and PM peak 3:00 PM–6:00 PM, with volumes reaching approximately 83% higher than the daily average.
Weekend traffic:
Weekend volumes run about 24% below weekday levels.
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +5% versus the annual average.
Lowest month:
January is the quietest month, with volumes -11% versus the annual average.
Analytical insight
In Ada County, Idaho, the peak hour concentrates about 8% of the day's traffic, and seasonal swing is mild at +5% in high season.
Traffic Flow Profile Comparison
Metric
Ada
Idaho
Average
Difference
Traffic
9,292
5,734
+62.1%
Truck % (Total Traffic)
6.3%
9.7%
-35.2%
Truck % (Highway)
10.0%
14.1%
-28.7%
Avg. Travel Time
32.6 min
33.8 min
-3.5%
Frequently Asked Questions
The average daily traffic volume is calculated at 9,292 vehicles per day, providing a baseline for daily operations and site assessment.
Yes - Ada has the highest average traffic volume of any county in Idaho, at 9,292 vehicles per day.
Weekday peaks occur between 7:00 AM and 12:00 PM in the morning and between 3:00 PM and 6:00 PM in the evening - about 83% above the daily average.
Trucks account for approximately 6.3% of the total traffic mix across all road types, with a significantly higher concentration of 10.0% on highways.
Drivers on Ada roads have a median age of 44 years, and the median household income of the neighborhoods trips originate from averages $91,996 - useful context for retail siting and customer profiling.
Approximately 15% of highway traffic and 3% of non-highway traffic consists of vehicles whose trip originates outside Ada 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 5% higher during June–August. Volumes drop to their lowest levels in January, averaging 8,298 vehicles per day - a 11% decrease from the annual average.
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)
