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Shelby County, Iowa Traffic Counts

This page delivers traffic analytics for Shelby County, Iowa. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Shelby County, Iowa among 221 road miles divided in 2,254 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 517 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

Traffic

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

1,380

Trucks

Trucks

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

9.2%

Average travel time

Average travel time

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

32.9 min

Drivers’ average age

Drivers’ average age

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

52.6 yrs

Drivers’ average income

Drivers’ average income

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

$71,120

Our data indicates an estimated average traffic volume of 1,380 vehicles per day in Shelby County, Iowa that results in 250,651 vehicle-miles traveled per day (≈91.5 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 32.9 minutes, which already accounts for delays at signals, intersections, and congestion.

Analytical insight

When compared to the Iowa state averages: Shelby sees 55% lower average daily traffic volume than the state average (1,380 vehicles per day against 3,042), suggesting less demand on each road - a critical factor for logistics and site planning. Network-wide, Shelby accounts for about 0.3% of Iowa's statewide total, at 250,651 vehicle-miles traveled per day (≈91.5 million per year). At 32.9 minutes, the average travel time matches the state level closely. By volume, Shelby's 1,380 vehicles per day outpaces 34% of counties in Iowa. 43% of counties in Iowa have a shorter average travel time than Shelby's 32.9 minutes.

Highway vs. Non-Highway Traffic Analysis

Analytical insight

N/A
non-highway traffic icon

Non-highway traffic

Traffic

Traffic

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

1,380

Trucks

Trucks

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

9.2%

Average travel time

Average travel time

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

32.9 min

Drivers’ average age

Drivers’ average age

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

52.6 yrs

Drivers’ average income

Drivers’ average income

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

$71,120

The non-highway road network in Shelby County, Iowa supports a substantial volume of traffic. The average non-highway road carries 1,380 vehicles per day. That average covers 221 non-highway road miles divided in 2,254 segments (average segment length 517 ft), together carrying 250,651 vehicle-miles traveled per day (≈91.5 million per year). Trucks constitute 9.2% of non-highway traffic.

Analytical insight

Overall, average travel time here is longer than 43% of counties in Iowa. 42% of counties in Iowa see lower average driver income among trip origins than Shelby. Shelby's median driver age is higher than 90% of counties in Iowa.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and PM peak 3:00 PM–7:00 PM, with volumes reaching approximately 73% higher than the daily average.
Weekend traffic:
Weekend volumes run about 18% below weekday levels.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
April–June is the high season, with volumes +5% versus the annual average.
Lowest month:
January is the quietest month, with volumes -12% versus the annual average.

Analytical insight

In Shelby County, Iowa, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is mild at +5% in high season.

Traffic Flow Profile Comparison

Metric

Shelby

Iowa
Average

Difference

Traffic

1,380

3,042

-54.6%

Truck % (Total Traffic)

9.2%

11.0%

-16.8%

Truck % (Highway)

16.1%

Avg. Travel Time

32.9 min

33.0 min

-0.5%

How Shelby County compares

Shelby County against nearby areas

Compared with its 4 closest neighbours, Shelby County moves 22.4% of the total daily travel and carries 36.8% less traffic on a typical road; it has the fourth busiest roads of the five. Quieter and more local than the areas around it on both counts: less traffic, and less of what there is arriving by truck.

Shelby County and the 4 nearest county-level areas by centroid distance, with the Iowa average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Shelby County1,3809.2%250,65132.9 minN/A
Audubon County, Iowa1,32212.2%150,31633.5 min4.6%
Crawford County, Iowa1,4229.9%368,22437.9 minN/A
Harrison County, Iowa2,05015.4%854,64935.6 minN/A
Pottawattamie County, Iowa3,94015.7%3,112,04032.1 minN/A
Iowa average3,04211.0%N/A33.0 min11.4%

Shelby County ranked within Iowa

Shelby County sits in the top quarter of the Iowa field on average driver age, at #11 of 99.

Where Shelby County sits among Iowa's county-level areas on each measure. Rank 1 is the highest value in the state, whether or not that is the outcome you want; the field size differs by measure because not every county carries highway data.
MeasureShelby CountyIowa rank
Traffic volume (AADT)1,380#66 of 99
Average travel time32.9 min#57 of 99
Average driver income$71,120#58 of 99
Average driver age52.6 yrs#11 of 99

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.
TrafficZoom methodology
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Data current as of:
Q3 2026

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Counties near Shelby County

The same traffic breakdown for the areas closest to Shelby County, Iowa.

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