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Traffic heat map of Caribou County, Idaho: 100 miles of roads shaded from blue (light) to red (heavy traffic), busiest on 2nd South Street and 3rd East Street

Caribou County, Idaho Traffic Counts

TrafficZoom tracks traffic on 100 road miles in Caribou County, Idaho, divided into 862 segments averaging 613 ft. Its busiest road, 2nd South Street, carries 9,382 vehicles a day, 4.6 times the average road. 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 icon

Total Traffic Volume & Performance in Caribou County, Idaho

Traffic

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

vehicles per day2,035
Trucks

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

12.1%
Average travel time

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

33.2 min
Drivers’ average age

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

47.9 yrs
Drivers’ average income

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

$67,874

Our data shows 2,035 vehicles per day on the average road in Caribou County, Idaho, and 212,143 vehicle-miles traveled per day (≈77.4 million per year) across its 100 miles of monitored roads. At 12.1%, the truck share runs above the 9.7% across Idaho: about 1 in 8 vehicles.

Traffic 65% below the Idaho average

Caribou's average daily traffic volume is 65% lower than the state average - 2,035 vehicles per day against 5,734 - suggesting less traffic load per road - quiet roads that suit freight movement more than drive-by retail. In total volume terms, its road network carries about 0.5% of Idaho's statewide total of vehicle-miles. By volume, Caribou's 2,035 vehicles per day trails 77% of counties in Idaho.

The average trip takes 33.2 minutes, on par with the state level. 53% of counties in Idaho have a longer average travel time than Caribou's 33.2 minutes.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Caribou County, Idaho

Trafficvehicles per day5,314
Trucks12.9%
Average travel time37.6 min
Drivers’ average age48.2 yrs
Drivers’ average income$68,967

A little more than half of the driving in Caribou County, Idaho happens on highways: 62% of all vehicle-miles. The average highway carries 5,314 vehicles per day, 296% more than the average non-highway road in the same area, which carries 1,344 vehicles per day.

With 26% of the road miles (26 miles in 150 segments), highways punch above their length, carrying 131,332 vehicle-miles traveled per day (≈47.9 million per year).

A typical mix of freight and passenger traffic

At 12.9%, highway truck share is 9% lower than the state average. The highway traffic mix is typical for Idaho: neither freight- nor commuter-dominated.

Caribou's highway truck share (12.9%) is higher than 59% of counties in Idaho. 53% of counties in Idaho see more highway trucks per day than Caribou's roughly 684.

non-highway traffic icon

Non-highway Traffic in Caribou County, Idaho

Trafficvehicles per day1,344
Trucks10.8%
Average travel time32.3 min
Drivers’ average age47.5 yrs
Drivers’ average income$66,695

A significant share of driving in Caribou County, Idaho, 38% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 1,344 vehicles per day.

Local roads make up 74% of the monitored road miles (74 miles in 712 segments) but carry less than their share of travel: 80,811 vehicle-miles traveled per day (≈29.5 million per year). The truck share on non-highway roads is 10.8%.

Drivers from lower-income areas than 65% of counties in Idaho

Non-highway roads carry a truck concentration that's 16% lower than the highway network.

65% of counties in Idaho see higher average driver income among trip origins than Caribou. Caribou's median driver age is higher than 58% 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 98% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 20% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +29% versus the annual average.
Lowest month:
January is the quietest month, with volumes -31% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Caribou County, Idaho, the peak hour concentrates about 8% of the day's traffic, and there is a strong seasonal swing of +29% in high season.

Caribou County vs. Idaho Traffic Comparison

Caribou County's biggest difference from the Idaho average is its average daily traffic per road, 65% below it. Its truck share, by contrast, is 25% above.

MetricCaribou CountyIdaho averageDifference
Traffic2,0355,734-64.5%
Truck % (Total Traffic)12.1%9.7%+25.4%
Truck % (Highway)12.9%14.1%-8.5%
Avg. Travel Time33.2 min33.8 min-1.7%

How Caribou County compares

Caribou County has a higher truck share than any nearby county

Compared with its 4 closest neighbours, Caribou County moves 17.1% of the total daily travel and carries 52.9% less traffic on a typical road; it has the quietest roads of the five. Smaller and quieter on both counts: a shorter network than the areas around it, carrying lighter traffic across it.

Caribou 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
Caribou County2,03512.1%212,14333.2 minN/A
Bannock County, Idaho4,35610.1%1,864,63435.0 min16.8%
Bear Lake County, Idaho2,16810.2%191,25529.8 minN/A
Franklin County, Idaho2,9497.2%233,26732.2 min2.8%
Bonneville County, Idaho7,7936.6%2,674,55435.2 min20.6%
Idaho average5,7349.7%N/A33.8 min16.0%

Caribou County ranked within Idaho

Caribou County sits in the bottom quarter of the Idaho field on highway travel volume, at #29 of 35.

Caribou County ranked among 44 county-level areas in Idaho (1 = highest); measures without data in every county rank a smaller field, down to 35.
MeasureCaribou CountyIdaho rank
Traffic volume (AADT)2,035#34 of 44
Highway vehicle-miles per day131,332#29 of 35
Truck share on highways12.9%#15 of 35
Highway trucks per day684#19 of 35
Average travel time33.2 min#24 of 44
Average driver income$67,874#29 of 44
Average driver age47.9 yrs#19 of 44

Busiest roads in Caribou County, Idaho

The three busiest roads in Caribou County average 7,777 vehicles a day, 3.8 times the county average of 2,035 across all its monitored roads.

2nd South Street is the busiest road, at 9,382 vehicles a day, 1,312 of them trucks (14.0%). It tops the truck ranking too, with the most trucks.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
12nd South StreetTrunk road · 9,382vehicles1,312trucks · 14.0%
Road class
Trunk road
Median trip time
32.4 min
Drivers’ median age
48.5 yrs
Drivers’ average income
$65,740

2nd South Street carries 4.6 times the county average at its busiest, 1,312 of them trucks (14.0%, above the county-wide 12.1%).

23rd East StreetSecondary road · 7,044vehicles758trucks · 10.8%
Road class
Secondary road
Median trip time
27.4 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$62,294

3rd East Street carries 3.5 times the county average on its busiest stretch, where the median trip lasts 27.4 minutes.

3US 30Trunk road · 6,906vehicles848trucks · 12.3%
Road class
Trunk road
Median trip time
38.8 min
Drivers’ median age
48.3 yrs
Drivers’ average income
$68,452

At 3.4 times the county average, US 30 draws drivers from neighborhoods averaging $68,452 in household income.

4Hooper AvenueSecondary road · 6,654vehicles685trucks · 10.3%
Road class
Secondary road
Median trip time
29.9 min
Drivers’ median age
47.6 yrs
Drivers’ average income
$62,358

The busiest stretch of Hooper Avenue carries 3.3 times the county average; trucks are 10.3% of it, below the county-wide 12.1%.

5Main StreetTertiary road · 3,538vehicles242trucks · 6.8%
Road class
Tertiary road
Median trip time
34.4 min
Drivers’ median age
47.1 yrs
Drivers’ average income
$66,481

Main Street is busy by local standards, at 74% more than the county average on its busiest stretch; trucks are 6.8% of it, below the county-wide 12.1%.

Ranked by trucks per day

Cars and light vehiclesTrucks
12nd South StreetTrunk road · #1 by traffic9,382vehicles1,312trucks · 14.0%
2US 30Trunk road · #3 by traffic6,906vehicles848trucks · 12.3%
33rd East StreetSecondary road · #2 by traffic7,044vehicles758trucks · 10.8%
4Hooper AvenueSecondary road · #4 by traffic6,654vehicles685trucks · 10.3%
5ID 34Primary road · 3,169vehicles291trucks · 9.2%
Road class
Primary road
Median trip time
28.0 min
Drivers’ median age
47.5 yrs
Drivers’ average income
$67,766

ID 34 peaks at 3,169 vehicles a day, 56% more than the county average; trucks are 9.2% of it, below the county-wide 12.1%.

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

CaribouDepartment 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 Caribou County

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

Need segment-level traffic data?

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