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Traffic heat map of Elmore County, Idaho: 428 miles of roads shaded from blue (light) to red (heavy traffic), busiest on American Legion Boulevard

Elmore County, Idaho Traffic Counts

TrafficZoom tracks traffic on 428 road miles in Elmore County, Idaho, divided into 2,747 segments averaging 823 ft. It is one of the top 3 counties in Idaho for highway travel volume. Built from cross-verified mobile and road-sensor data, these counts help you size up a retail site, plan logistics routes or assess infrastructure needs.
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 Elmore County, Idaho

Traffic

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

vehicles per day4,558
Trucks

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

18.7%
Average travel time

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

30.2 min
Congestion ratio

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

3.6%
Drivers’ average age

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

42.8 yrs
Drivers’ average income

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

$70,164

The average monitored road in Elmore County, Idaho carries 4,558 vehicles per day. Across its 428 miles of monitored roads, that adds up to 2,556,881 vehicle-miles traveled per day (≈933 million per year). About 1 in 5 vehicles is a truck, well above the 9.7% across Idaho - a freight-heavy mix.

Congestion 78% below the Idaho average

Elmore's average daily traffic volume is 20% lower than the state average - 4,558 vehicles per day against 5,734 - suggesting less traffic load per road - a critical factor for logistics and site planning. In total volume terms, its road network carries about 5.7% of Idaho's statewide total of vehicle-miles. By volume, Elmore's 4,558 vehicles per day outpaces 79% of counties in Idaho.

At 30.2 minutes, the average travel time is 11% lower than the state level. Its average travel time of 30.2 minutes is shorter than 77% of counties in Idaho.

The congestion ratio of 3.6% is 78% lower, pointing to smoother traffic flow than the state level - free-flowing roads make scheduled deliveries highly predictable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Elmore County, Idaho

Trafficvehicles per day9,578
Trucks22.3%
Average travel time60.3 min
Drivers’ average age44.6 yrs
Drivers’ average income$75,733

Highways carry most of the traffic in Elmore County, Idaho: 76% of all vehicle-miles. The average highway carries 9,578 vehicles per day, 120% more than the average non-highway road in the same area, which carries 4,355 vehicles per day.

With 38% of the road miles (162 miles in 107 segments), highways punch above their length, carrying 1,933,859 vehicle-miles traveled per day (≈706 million per year).

By highway travel volume, that ranks Elmore in the top 3 counties in Idaho.

More highway trucks than 97% of counties in Idaho

Highway truck concentration here runs 59% higher than the state average, at 22.3%. That marks Elmore as a major freight corridor, where highway access is what logistics operators compete on.

88% of counties in Idaho see a lower highway truck share than Elmore's 22.3%. Elmore's highway truck count is higher than 97% of counties in Idaho, at roughly 2,140 trucks per day.

non-highway traffic icon

Non-highway Traffic in Elmore County, Idaho

Trafficvehicles per day4,355
Trucks7.3%
Average travel time28.9 min
Congestion ratio3.6%
Drivers’ average age42.3 yrs
Drivers’ average income$62,587

Local roads carry a smaller share of travel in Elmore County, Idaho, 24% of vehicle-miles; most driving happens on highways. A typical local road sees 4,355 vehicles per day.

Spread over 266 miles and 2,640 segments, 62% of the road network, local roads carry a lighter load per mile: 623,022 vehicle-miles traveled per day (≈227 million per year). About 1 in 14 vehicles on non-highway roads is a truck (7.3%).

Local congestion 78% below the Idaho average

Compared to highways, non-highway routes see 67% fewer trucks by share.

At 78% lower than the state level, the non-highway congestion ratio of 3.6% signals easier movement on local roads.

56% of counties in Idaho see higher average driver income among trip origins than Elmore. Elmore's median driver age is lower than 84% of counties in Idaho.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 11:00 AM–12:00 PM and PM peak 5:00 PM–6:00 PM, with volumes reaching approximately 77% higher than the daily average.
Weekend traffic:
Weekends are busier than weekdays: volumes run about 6% above weekday levels, which usually points to leisure, tourism or shopping traffic.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +23% versus the annual average.
Lowest month:
January is the quietest month, with volumes -27% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Elmore County, Idaho, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +23% in high season.

Elmore County vs. Idaho Traffic Comparison

Elmore County's biggest difference from the Idaho average is its truck share, 93% above it. Its highway truck share is also 59% above.

MetricElmore CountyIdaho averageDifference
Traffic4,5585,734-20.5%
Truck % (Total Traffic)18.7%9.7%+93.3%
Truck % (Highway)22.3%14.1%+58.7%
Avg. Travel Time30.2 min33.8 min-10.8%

How Elmore County compares

Elmore County against nearby counties

Against the 4 nearest areas, Elmore County sees 32.1% shorter typical trips and runs 7.7 percentage points more truck traffic; it has the third busiest roads of the five. Traffic volume here matches the areas around it, but more of that traffic is trucks - a difference in what routes through, not in how much.

Elmore County and the 4 nearest county-level areas by centroid distance, with the Idaho average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Elmore County4,55818.7%2,556,88130.2 min3.6%
Ada County, Idaho9,2926.3%9,986,22832.6 min22.5%
Camas County, Idaho1,0959.6%64,34252.6 minN/A
Boise County, Idaho4,8339.4%266,40658.1 min3.8%
Gooding County, Idaho2,06118.6%958,69534.2 min4.2%
Idaho average5,7349.7%N/A33.8 min16.0%

Elmore County ranked within Idaho

Elmore County sits in Idaho's top three on highway travel volume and highway truck volume.

Elmore County ranked among 44 county-level areas in Idaho (1 = highest); measures without data in every county rank a smaller field, down to 35.
MeasureElmore CountyIdaho rank
Traffic volume (AADT)4,558#10 of 44
Highway vehicle-miles per day1,933,859#2 of 35
Truck share on highways22.3%#5 of 35
Highway trucks per day2,140#2 of 35
Average travel time30.2 min#34 of 44
Average driver income$70,164#25 of 44
Average driver age42.8 yrs#37 of 44

The two ends of this table sit far apart: #2 of 35 on highway travel volume, against #37 of 44 on average driver age.

Busiest roads in Elmore County, Idaho

The three busiest roads in Elmore County average 21,972 vehicles a day, 4.8 times the county average of 4,558 across all its monitored roads.

American Legion Boulevard leads with 24,066 vehicles a day, 986 of them trucks (4.1%). Vietnam Veterans Memorial Highway carries the most trucks, 5,264 a day (23.5% of its traffic), although it ranks #2 for all traffic.

Trips using Vietnam Veterans Memorial Highway are long: a median of 59.5 minutes against 30.2 county-wide, the mark of a through route.

ID 51 is busy with cars rather than freight: only 3.6% of its traffic is trucks, against 18.7% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1American Legion BoulevardPrimary road · 24,066vehicles986trucks · 4.1%
Road class
Primary road
Median trip time
27.5 min
Drivers’ median age
42.9 yrs
Drivers’ average income
$60,995

American Legion Boulevard carries 5.3 times the county average at its busiest, 986 of them trucks (4.1%, below the county-wide 18.7%).

2Vietnam Veterans Memorial HighwayMotorway · 22,424vehicles5,264trucks · 23.5%
Road class
Motorway
Median trip time
59.5 min
Drivers’ median age
44.6 yrs
Drivers’ average income
$75,734

Vietnam Veterans Memorial Highway carries 4.9 times the county average at its busiest, 5,264 of them trucks (23.5%, above the county-wide 18.7%).

3ID 51Primary road · 19,426vehicles706trucks · 3.6%
Road class
Primary road
Median trip time
29.3 min
Drivers’ median age
42.5 yrs
Drivers’ average income
$61,959

ID 51 carries 4.3 times the county average on its busiest stretch, where the median trip lasts 29.3 minutes.

4Old Oregon Trail HighwayPrimary road · 14,884vehicles903trucks · 6.1%
Road class
Primary road
Median trip time
31.9 min
Drivers’ median age
42.2 yrs
Drivers’ average income
$62,701

At 3.3 times the county average, Old Oregon Trail Highway draws drivers from neighborhoods averaging $62,701 in household income.

52nd East StreetPrimary road · 12,030vehicles607trucks · 5.0%
Road class
Primary road
Median trip time
28.6 min
Drivers’ median age
42.5 yrs
Drivers’ average income
$61,720

The busiest stretch of 2nd East Street carries 2.6 times the county average; trucks are 5.0% of it, below the county-wide 18.7%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Vietnam Veterans Memorial HighwayMotorway · #2 by traffic22,424vehicles5,264trucks · 23.5%
2American Legion BoulevardPrimary road · #1 by traffic24,066vehicles986trucks · 4.1%
3Old Oregon Trail HighwayPrimary road · #4 by traffic14,884vehicles903trucks · 6.1%
4Sunset StripPrimary road · 10,218vehicles812trucks · 8.0%
Road class
Primary road
Median trip time
34.5 min
Drivers’ median age
42.0 yrs
Drivers’ average income
$65,631

On its busiest stretch, Sunset Strip carries 2.2 times the county average; trucks are 8.0% of it, below the county-wide 18.7%.

5ID 51Primary road · #3 by traffic19,426vehicles706trucks · 3.6%
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

ElmoreDepartment 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 Elmore County

The same traffic breakdown for the areas closest to Elmore County, Idaho.

Need segment-level traffic data?

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