This page delivers traffic analytics for Decatur County, Iowa. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Decatur County, Iowa among 204 road miles divided in 1,654 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 651 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.
The average number of vehicles that travel each day over any road in the road network.
1,480
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
22.2%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
30.1 min
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
48.2 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$60,953
Our data indicates an estimated average traffic volume of 1,480 vehicles per day in Decatur County, Iowa that results in 518,787 vehicle-miles traveled per day (≈189 million per year). The traffic stream is comprised of an average of 1 truck for every 4 vehicles. Typical time spent behind the wheel per trip is 30.1 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Iowa state averages: Decatur's average daily traffic volume is 51% lower than the state average - 1,480 vehicles per day against 3,042 - suggesting less traffic load per road, a critical factor for logistics and site planning. Network-wide, Decatur accounts for about 0.6% of Iowa's statewide total, at 518,787 vehicle-miles traveled per day (≈189 million per year). The average trip takes 30.1 minutes, 9% lower than the state level. By volume, Decatur's 1,480 vehicles per day outpaces 41% of counties in Iowa. On travel time, Decatur runs longer than 7% of counties in Iowa.
Highway vs. Non-Highway Traffic Analysis
Highway Traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
6,996
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
26.9%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
63.0 min
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
47.5 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$63,565
A significant volume of traffic in Decatur County, Iowa utilizes the highway network. The average highway carries 6,996 vehicles per day, 433% more than the average non-highway road in the same area, which carries 1,312 vehicles per day. That average covers 49 highway road miles divided in 49 segments (average segment length 5,235 ft), together carrying 380,024 vehicle-miles traveled per day (≈139 million per year). By highway travel volume, Decatur outranks 61% of counties in Iowa. Trucks constitute 26.9% of highway traffic.
Analytical insight
Highway truck concentration here runs 67% higher than the state average, at 26.9% - positioning Decatur as a significant freight corridor. For logistics operators, this validates the importance of highway access. Decatur's highway truck share (26.9%) is higher than 97% of counties in Iowa. 88% of counties in Iowa see fewer highway trucks per day than Decatur's roughly 1,883.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
1,312
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
9.4%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
29.1 min
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
48.7 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$59,474
The non-highway road network in Decatur County, Iowa supports a substantial volume of traffic. The average non-highway road carries 1,312 vehicles per day, 81% less than the average highway in the same area, which carries 6,996 vehicles per day. That average covers 155 non-highway road miles divided in 1,605 segments (average segment length 511 ft), together carrying 138,763 vehicle-miles traveled per day (≈50.6 million per year). Trucks constitute 9.4% of non-highway traffic.
Analytical insight
Compared to highways, non-highway routes see 65% fewer trucks by share. Overall, average travel time here is longer than 7% of counties in Iowa. 2% of counties in Iowa see lower average driver income among trip origins than Decatur. The driver population here skews older than 31% of counties in Iowa.
Time-of-Day & Seasonal Patterns
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 78% higher than the daily average.
Weekend traffic:
Weekend volumes run about 7% below weekday levels.
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +9% versus the annual average.
Lowest month:
January is the quietest month, with volumes -18% versus the annual average.
Analytical insight
In Decatur County, Iowa, the peak hour concentrates about 7% of the day's traffic, and seasonal swing is mild at +9% in high season.
Traffic Flow Profile Comparison
Metric
Decatur
Iowa
Average
Difference
Traffic
1,480
3,042
-51.3%
Truck % (Total Traffic)
22.2%
11.0%
+102.1%
Truck % (Highway)
26.9%
16.1%
+67.2%
Avg. Travel Time
30.1 min
33.0 min
-8.6%
Frequently Asked Questions
The average daily traffic volume is calculated at 1,480 vehicles per day, providing a baseline for daily operations and site assessment.
Trip origins in Decatur have higher average income than 2% of counties in Iowa.
Traffic volumes are typically 9% higher during May–July. Volumes drop to their lowest levels in January, averaging 1,215 vehicles per day - a 18% decrease from the annual average.
The average travel time for drivers is 30.1 minutes, offering a standard metric for commute and delivery route planning.
Drivers on Decatur roads have a median age of 48 years, and the median household income of the neighborhoods trips originate from averages $60,953 - useful context for retail siting and customer profiling.
Trucks account for approximately 22.2% of the total traffic mix across all road types, with a significantly higher concentration of 26.9% on highways.
Approximately 58% of highway traffic and 10% of non-highway traffic consists of vehicles whose trip originates outside Decatur County, Iowa. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
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)
