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Carter County, Montana Traffic Counts

This page delivers traffic analytics for Carter County, Montana. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Carter County, Montana among 98 road miles divided in 185 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 2,807 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

895

Trucks

16.4%

Average travel time

51.4 min

Congestion ratio

4.4%

Drivers’ average age

54.4 yrs

Drivers’ average income

$70,241

Our data indicates an estimated average traffic volume of 895 vehicles per day in Carter County, Montana that results in 117,940 vehicle-miles traveled per day (≈43.0 million per year). The traffic stream is comprised of an average of 1 truck for every 6 vehicles. Typical time spent behind the wheel per trip is 51.4 minutes, which already accounts for delays at signals, intersections, and congestion.

Analytical insight

When compared to the Montana state averages: Carter's average daily traffic volume is 79% lower than the state average - 895 vehicles per day against 4,202 - suggesting less traffic load per road, a critical factor for logistics and site planning. Network-wide, Carter accounts for about 0.4% of Montana's statewide total, at 117,940 vehicle-miles traveled per day (≈43.0 million per year). At 51.4 minutes, the average travel time is 42% higher than the state level. Congestion runs 64% lower than the state level, at a ratio of 4.4% - smoother traffic flow - crucial for traffic control improvement and logistics planning. Carter carries more traffic than 13% of counties in Montana. On travel time, Carter runs longer than 89% of counties in Montana.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic

Traffic

2,048

Trucks

15.9%

Average travel time

58.6 min

Congestion ratio

4.4%

Drivers’ average age

54.0 yrs

Drivers’ average income

$72,296

A significant volume of traffic in Carter County, Montana utilizes the highway network. The average highway carries 2,048 vehicles per day, 420% more than the average non-highway road in the same area, which carries 394 vehicles per day. That average covers 41 highway road miles divided in 56 segments (average segment length 3,824 ft), together carrying 96,295 vehicle-miles traveled per day (≈35.1 million per year). Trucks constitute 15.9% of highway traffic.

Analytical insight

At 15.9%, highway truck share is 6% higher than the state average, marking Carter as a significant freight corridor - underscoring the importance of highway access for logistics operators. Carter's highway truck share (15.9%) is higher than 57% of counties in Montana. By raw truck volume, Carter carries more highway trucks than 50% of counties in Montana.
non-highway traffic icon

Non-highway traffic

Traffic

394

Trucks

18.6%

Average travel time

48.2 min

Drivers’ average age

60.2 yrs

Drivers’ average income

$50,789

The non-highway road network in Carter County, Montana supports a substantial volume of traffic. The average non-highway road carries 394 vehicles per day, 81% less than the average highway in the same area, which carries 2,048 vehicles per day. That average covers 58 non-highway road miles divided in 129 segments (average segment length 2,366 ft), together carrying 21,646 vehicle-miles traveled per day (≈7.9 million per year). Trucks constitute 18.6% of non-highway traffic.

Analytical insight

The concentration of trucks on non-highway roads is 17% higher than on highways. Overall, average travel time here is longer than 89% of counties in Montana. Carter's average driver income exceeds 64% of counties in Montana. Carter's median driver age is higher than 76% of counties in Montana.

Time-of-Day & Seasonal Patterns

Analytical insight

In Carter County, Montana, the peak hour concentrates about 7% of the day's traffic.

Traffic Flow Profile Comparison

Metric

Carter

Montana
Average

Difference

Traffic

895

4,202

-78.7%

Truck % (Total Traffic)

16.4%

11.7%

+40.7%

Truck % (Highway)

15.9%

15.0%

+6.3%

Avg. Travel Time

51.4 min

36.2 min

+42.0%

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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