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Granite County, Montana Traffic Counts

This page delivers traffic analytics for Granite County, Montana. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Granite County, Montana among 160 road miles divided in 551 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 1,535 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.
Data current as of:
Q3 2026
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Total Traffic Volume & Performance

Traffic

1,479

Trucks

19.0%

Average travel time

29.9 min

Congestion ratio

5.1%

Drivers’ average age

46.8 yrs

Drivers’ average income

$70,786

Our data indicates an estimated average traffic volume of 1,479 vehicles per day in Granite County, Montana that results in 486,499 vehicle-miles traveled per day (≈178 million per year). The traffic stream is comprised of an average of 1 truck for every 5 vehicles. Typical time spent behind the wheel per trip is 29.9 minutes, which already accounts for delays at signals, intersections, and congestion.

Analytical insight

When compared to the Montana state averages: At 1,479 vehicles per day, the average monitored road in Granite carries 65% less traffic than the state average of 4,202 vehicles per day - a critical factor for logistics and site planning. Network-wide, Granite accounts for about 1.7% of Montana's statewide total, at 486,499 vehicle-miles traveled per day (≈178 million per year). At 29.9 minutes, the average travel time is 17% lower than the state level. The congestion ratio of 5.1% is 58% lower, pointing to smoother traffic flow than the state level - crucial for traffic control improvement and logistics planning. Granite carries more traffic than 40% of counties in Montana. On travel time, Granite runs longer than 4% of counties in Montana.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic

Traffic

4,838

Trucks

20.6%

Average travel time

52.8 min

Congestion ratio

10.6%

Drivers’ average age

44.7 yrs

Drivers’ average income

$73,697

A significant volume of traffic in Granite County, Montana utilizes the highway network. The average highway carries 4,838 vehicles per day, 353% more than the average non-highway road in the same area, which carries 1,069 vehicles per day. That average covers 78 highway road miles divided in 60 segments (average segment length 6,874 ft), together carrying 421,744 vehicle-miles traveled per day (≈154 million per year). By highway travel volume, Granite outranks 65% of counties in Montana. Trucks constitute 20.6% of highway traffic.

Analytical insight

The concentration of trucks on highways (20.6%) is 38% higher than the state average for similar road classifications. This indicates Granite serves as a significant freight corridor. For logistics operators, this validates the importance of highway access. By truck concentration, highways here outrank 88% of counties in Montana. By raw truck volume, Granite carries more highway trucks than 91% of counties in Montana.
non-highway traffic icon

Non-highway traffic

Traffic

1,069

Trucks

8.6%

Average travel time

27.1 min

Congestion ratio

4.5%

Drivers’ average age

58.1 yrs

Drivers’ average income

$58,100

The non-highway road network in Granite County, Montana supports a substantial volume of traffic. The average non-highway road carries 1,069 vehicles per day, 78% less than the average highway in the same area, which carries 4,838 vehicles per day. That average covers 82 non-highway road miles divided in 491 segments (average segment length 882 ft), together carrying 64,755 vehicle-miles traveled per day (≈23.6 million per year). Trucks constitute 8.6% of non-highway traffic.

Analytical insight

The concentration of trucks on non-highway roads is 58% lower than on highways. At 63% lower than the state level, the non-highway congestion ratio of 4.5% signals easier movement on local roads. Granite's overall average travel time exceeds 4% of counties in Montana. Trip origins here have higher average income than 67% of counties in Montana. Granite's median driver age is higher than 18% of counties in Montana.

Time-of-Day & Seasonal Patterns

Analytical insight

In Granite County, Montana, the peak hour concentrates about 8% of the day's traffic.

Traffic Flow Profile Comparison

Metric

Granite

Montana
Average

Difference

Traffic

1,479

4,202

-64.8%

Truck % (Total Traffic)

19.0%

11.7%

+63.2%

Truck % (Highway)

20.6%

15.0%

+37.9%

Avg. Travel Time

29.9 min

36.2 min

-17.4%

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

MontanaDepartment of Transportation

Historical traffic pattern databases

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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