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Marshall County, Iowa Traffic Counts

This page delivers traffic analytics for Marshall County, Iowa. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Marshall County, Iowa among 377 road miles divided in 4,505 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 442 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

2,446

Trucks

9.3%

Average travel time

35.7 min

Congestion ratio

9.3%

Drivers’ average age

47.9 yrs

Drivers’ average income

$79,543

Our data indicates an estimated average traffic volume of 2,446 vehicles per day in Marshall County, Iowa that results in 943,012 vehicle-miles traveled per day (≈344 million per year). The traffic stream is comprised of an average of 1 truck for every 11 vehicles. Typical time spent behind the wheel per trip is 35.7 minutes, which already accounts for delays at signals, intersections, and congestion.

Analytical insight

When compared to the Iowa state averages: At 2,446 vehicles per day, the average monitored road in Marshall carries 20% less traffic than the state average of 3,042 vehicles per day - a critical factor for logistics and site planning. In total volume terms, its road network carries 943,012 vehicle-miles traveled per day (≈344 million per year), about 1.1% of Iowa's statewide total. The average trip takes 35.7 minutes, 8% higher than the state level. Congestion runs 19% lower than the state level, at a ratio of 9.3% - smoother traffic flow - crucial for traffic control improvement and logistics planning. 78% of counties in Iowa see less traffic than Marshall's 2,446 vehicles per day. Its average travel time of 35.7 minutes is longer than 77% of counties in Iowa.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic

Traffic

5,598

Trucks

11.3%

Average travel time

46.6 min

Congestion ratio

12.3%

Drivers’ average age

46.7 yrs

Drivers’ average income

$83,533

A significant volume of traffic in Marshall County, Iowa utilizes the highway network. The average highway carries 5,598 vehicles per day, 142% more than the average non-highway road in the same area, which carries 2,310 vehicles per day. That average covers 80 highway road miles divided in 187 segments (average segment length 2,255 ft), together carrying 438,743 vehicle-miles traveled per day (≈160 million per year). By highway travel volume, Marshall outranks 68% of counties in Iowa. Trucks constitute 11.3% of highway traffic.

Analytical insight

At 11.3%, highway truck share is 30% lower than the state average, marking Marshall as a primarily local traffic hub - underscoring the importance of local access for logistics operators. 16% of counties in Iowa see a lower highway truck share than Marshall's 11.3%. Marshall's highway truck count is higher than 43% of counties in Iowa, at roughly 632 trucks per day.
non-highway traffic icon

Non-highway traffic

Traffic

2,310

Trucks

7.7%

Average travel time

35.2 min

Congestion ratio

9.2%

Drivers’ average age

48.2 yrs

Drivers’ average income

$77,830

The non-highway road network in Marshall County, Iowa supports a substantial volume of traffic. The average non-highway road carries 2,310 vehicles per day, 59% less than the average highway in the same area, which carries 5,598 vehicles per day. That average covers 298 non-highway road miles divided in 4,318 segments (average segment length 364 ft), together carrying 504,269 vehicle-miles traveled per day (≈184 million per year). Trucks constitute 7.7% of non-highway traffic.

Analytical insight

Compared to highways, non-highway routes see 32% fewer trucks by share. At 18% lower than the state level, the non-highway congestion ratio of 9.2% signals easier movement on local roads. Marshall's overall average travel time exceeds 77% of counties in Iowa. 74% of counties in Iowa see lower average driver income among trip origins than Marshall. The driver population here skews older than 24% of counties in Iowa.

Time-of-Day & Seasonal Patterns

Analytical insight

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

Traffic Flow Profile Comparison

Metric

Marshall

Iowa
Average

Difference

Traffic

2,446

3,042

-19.6%

Truck % (Total Traffic)

9.3%

11.0%

-15.1%

Truck % (Highway)

11.3%

16.1%

-29.9%

Avg. Travel Time

35.7 min

33.0 min

+8.2%

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

IowaDepartment 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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