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Traffic heat map of Big Horn County, Montana: 398 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 90 and Crawford Avenue

Big Horn County, Montana Traffic Counts

Traffic analytics for Big Horn County, Montana, calculated from real-world mobile and sensor networks on 1,372 road segments (398 road miles, about 1,532 ft each). About 1 in 5 vehicles here is a truck, against 1 in 9 across Montana. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
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 Big Horn County, Montana

Traffic

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

vehicles per day1,458
Trucks

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

18.5%
Average travel time

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

43.0 min
Congestion ratio

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

5.2%
Drivers’ average age

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

44.5 yrs
Drivers’ average income

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

$57,632

The average monitored road in Big Horn County, Montana carries 1,458 vehicles per day. Across its 398 miles of monitored roads, that adds up to 803,677 vehicle-miles traveled per day (≈293 million per year). Freight weighs heavily here: trucks are 18.5% of traffic, against 11.7% across Montana.

Traffic 65% below the Montana average

Big Horn sees 65% lower average daily traffic volume than the state average (1,458 vehicles per day against 4,202), suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. In total volume terms, its road network carries about 2.8% of Montana's statewide total of vehicle-miles. 64% of counties in Montana see more traffic than Big Horn's 1,458 vehicles per day.

Journey times run 19% higher than the state level, at 43.0 minutes on average. On travel time, Big Horn runs longer than 69% of counties in Montana.

The congestion ratio of 5.2% is 58% lower, pointing to smoother traffic flow than the state level - delays are rare enough to plan travel times almost to the minute.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Big Horn County, Montana

Trafficvehicles per day2,443
Trucks20.0%
Average travel time57.2 min
Congestion ratio6.7%
Drivers’ average age45.7 yrs
Drivers’ average income$58,641

The vast majority of driving in Big Horn County, Montana happens on highways: 87% of all vehicle-miles. The average highway carries 2,443 vehicles per day, 133% more than the average non-highway road in the same area, which carries 1,050 vehicles per day.

Highways make up 60% of the monitored road miles (241 miles, 402 segments), so they carry more than their share: 700,102 vehicle-miles traveled per day (≈256 million per year).

By highway travel volume, Big Horn outranks 85% of counties in Montana.

Higher highway truck share than 80% of counties in Montana

Highway truck concentration here runs 33% higher than the state average, at 20.0%. Highways here lean toward freight, so highway access is a real asset for logistics operators.

Big Horn's highway truck share (20.0%) is higher than 80% of counties in Montana. Big Horn's highway truck count is higher than 70% of counties in Montana, at roughly 488 trucks per day.

non-highway traffic icon

Non-highway Traffic in Big Horn County, Montana

Trafficvehicles per day1,050
Trucks8.5%
Average travel time37.2 min
Congestion ratio4.6%
Drivers’ average age42.8 yrs
Drivers’ average income$53,029

Local roads carry only a small share of the traffic in Big Horn County, Montana, 13% of all vehicle-miles. A typical local road sees 1,050 vehicles per day.

Local roads make up 40% of the monitored road miles (157 miles in 970 segments) but carry less than their share of travel: 103,575 vehicle-miles traveled per day (≈37.8 million per year). About 1 in 12 vehicles on non-highway roads is a truck (8.5%).

Younger drivers than 93% of counties in Montana

Compared to highways, non-highway routes see 58% fewer trucks by share.

Non-highway congestion (4.6%) runs 62% lower than the state average, pointing to smoother local traffic flow.

85% of counties in Montana see higher average driver income among trip origins than Big Horn. Big Horn's median driver age is lower than 93% of counties in Montana.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 9:00 AM–12:00 PM and PM peak 3:00 PM–6:00 PM, with volumes reaching approximately 66% higher than the daily average.
Weekend traffic:
Weekend traffic is about as busy as on weekdays (-4%): leisure and through trips largely replace the commute.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +29% versus the annual average.
Lowest month:
February is the quietest month, with volumes -26% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Big Horn County, Montana, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +29% in high season.

Big Horn County vs. Montana Traffic Comparison

Of the four measures, average daily traffic per road differs most: Big Horn County runs 65% below the Montana average. Its truck share, by contrast, is 59% above.

MetricBig Horn CountyMontana averageDifference
Traffic1,4584,202-65.3%
Truck % (Total Traffic)18.5%11.7%+58.6%
Truck % (Highway)20.0%15.0%+33.4%
Avg. Travel Time43.0 min36.2 min+19.0%

How Big Horn County compares

Big Horn County against nearby counties

Compared with its 4 closest neighbours, Big Horn County carries 56.3% less traffic on a typical road; it has the fourth busiest roads of the five. Quiet roads and long journeys - a rural pattern, where the distance between destinations rather than the traffic on the way is what takes the time.

Big Horn County and the 4 nearest county-level areas by centroid distance, with the Montana average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Big Horn County1,45818.5%803,67743.0 min5.2%
Treasure County, Montana80619.7%155,87641.1 min5.7%
Rosebud County, Montana1,52418.4%345,80743.1 min4.6%
Yellowstone County, Montana6,4718.5%3,250,72434.2 min16.0%
Sheridan County, Wyoming4,54210.4%654,08231.5 minN/A
Montana average4,20211.7%N/A36.2 min12.3%

Big Horn County ranked within Montana

Big Horn County sits in the bottom quarter of the Montana field on average driver age, at #52 of 56.

Big Horn County ranked among 56 county-level areas in Montana (1 = highest); measures without data in every county rank a smaller field, down to 47.
MeasureBig Horn CountyMontana rank
Traffic volume (AADT)1,458#36 of 56
Highway vehicle-miles per day700,102#8 of 47
Truck share on highways20.0%#10 of 47
Highway trucks per day488#15 of 47
Average travel time43.0 min#18 of 56
Average driver income$57,632#48 of 56
Average driver age44.5 yrs#52 of 56

Big Horn County ranks #8 of 47 on highway travel volume but #52 of 56 on average driver age - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Big Horn County, Montana

On their busiest stretches, the three busiest roads in Big Horn County carry 6,150 vehicles a day on average, 4.2 times the typical road in the county (1,458).

I 90 is the busiest road, at 8,326 vehicles a day, 1,666 of them trucks (20.0%). No other road comes close: Crawford Avenue, in second place, carries 5,436. It tops the truck ranking too, with the most trucks.

Few trucks use Frontage Road: 5.7% of its traffic, under half the county's 18.5%.

Mitchell Avenue is a local road at heart: the median trip using it lasts 26.8 minutes, against 43.0 for the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 90Motorway · 8,326vehicles1,666trucks · 20.0%
Road class
Motorway
Congestion ratio
8.7%
Median trip time
46.6 min
Drivers’ median age
45.4 yrs
Drivers’ average income
$58,673

I 90 is a trunk route for the county, carrying 5.7 times the county average on its busiest stretch; trucks are 20.0% of it, above the county-wide 18.5%.

2Crawford AvenueSecondary road · 5,436vehicles339trucks · 6.2%
Road class
Secondary road
Congestion ratio
12.3%
Median trip time
37.2 min
Drivers’ median age
43.0 yrs
Drivers’ average income
$51,897

The busiest stretch of Crawford Avenue carries 3.7 times the county average; trucks are 6.2% of it, below the county-wide 18.5%.

3Frontage RoadSecondary road · 4,686vehicles265trucks · 5.7%
Road class
Secondary road
Median trip time
41.8 min
Drivers’ median age
43.0 yrs
Drivers’ average income
$53,869

On its busiest stretch, Frontage Road carries 3.2 times the county average; trucks are 5.7% of it, below the county-wide 18.5%.

4MT 384Secondary road · 4,260vehicles235trucks · 5.5%
Road class
Secondary road
Median trip time
41.1 min
Drivers’ median age
42.9 yrs
Drivers’ average income
$53,187

MT 384 peaks at 4,260 vehicles a day, 2.9 times the county average; trucks are 5.5% of it, below the county-wide 18.5%.

5Mitchell AvenueSecondary road · 3,980vehicles248trucks · 6.2%
Road class
Secondary road
Congestion ratio
11.0%
Median trip time
26.8 min
Drivers’ median age
43.1 yrs
Drivers’ average income
$52,142

Mitchell Avenue carries 2.7 times the county average at its busiest, 248 of them trucks (6.2%, below the county-wide 18.5%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 90Motorway · #1 by traffic8,326vehicles1,666trucks · 20.0%
2Crawford AvenueSecondary road · #2 by traffic5,436vehicles339trucks · 6.2%
3Frontage RoadSecondary road · #3 by traffic4,686vehicles265trucks · 5.7%
4Mitchell AvenueSecondary road · #5 by traffic3,980vehicles248trucks · 6.2%
5MT 384Secondary road · #4 by traffic4,260vehicles235trucks · 5.5%
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

Big HornDepartment 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 Big Horn County

The same traffic breakdown for the areas closest to Big Horn County, Montana.

Need segment-level traffic data?

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