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Traffic heat map of Woodbury County, Iowa: 650 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 29 and Gordon Drive

Woodbury County, Iowa Traffic Counts

Our Woodbury County, Iowa traffic data covers 9,327 road segments over 650 road miles, with an average segment of just 368 ft. Its busiest road, I 29, carries 24,280 vehicles a day, 7.0 times the average road. Whether you are evaluating a new retail location, planning routes or assessing infrastructure, these numbers replace guesswork.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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Total Traffic Volume & Performance in Woodbury County, Iowa

Traffic

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

vehicles per day3,467
Trucks

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

9.5%
Average travel time

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

31.6 min
Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.

12.6%
Drivers’ average age

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

45.2 yrs
Drivers’ average income

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

$79,280

A typical monitored road in Woodbury County, Iowa sees 3,467 vehicles per day, while its 650 miles of monitored roads together handle 1,970,566 vehicle-miles traveled per day (≈719 million per year). Trucks are 9.5% of traffic, close to the 11.0% across Iowa.

Busier roads than 90% of counties in Iowa

Woodbury's average daily traffic volume is 14% higher than the state average - 3,467 vehicles per day against 3,042 - a critical factor for logistics and site planning. Across the whole network, that travel is about 2.4% of Iowa's statewide total. By volume, Woodbury's 3,467 vehicles per day outpaces 90% of counties in Iowa.

At 31.6 minutes, the average travel time matches the state level closely. Its average travel time of 31.6 minutes is shorter than 77% of counties in Iowa.

The congestion ratio of 12.6% runs slightly higher than the state level (10% higher) - relevant for traffic control and delivery planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Woodbury County, Iowa

Trafficvehicles per day5,980
Trucks14.2%
Average travel time35.6 min
Congestion ratio12.3%
Drivers’ average age46.3 yrs
Drivers’ average income$83,094

Highways carry a significant share of travel in Woodbury County, Iowa: 44% of all vehicle-miles. The average highway carries 5,980 vehicles per day, 79% more than the average non-highway road in the same area, which carries 3,332 vehicles per day.

With 22% of the road miles (143 miles in 476 segments), highways punch above their length, carrying 875,792 vehicle-miles traveled per day (≈320 million per year).

83% of counties in Iowa move less traffic on their highways.

A typical mix of freight and passenger traffic

Highway truck concentration here runs 11% lower than the state average, at 14.2%. The highway traffic mix is typical for Iowa: neither freight- nor commuter-dominated.

51% of counties in Iowa see a higher highway truck share than Woodbury's 14.2%. By raw truck volume, Woodbury carries more highway trucks than 59% of counties in Iowa.

non-highway traffic icon

Non-highway Traffic in Woodbury County, Iowa

Trafficvehicles per day3,332
Trucks5.7%
Average travel time31.4 min
Congestion ratio12.6%
Drivers’ average age45.0 yrs
Drivers’ average income$77,357

A little more than half of the driving in Woodbury County, Iowa happens on local roads: 56% of all vehicle-miles. A typical local road sees 3,332 vehicles per day.

Local roads make up 78% of the monitored road miles (507 miles in 8,851 segments) but carry less than their share of travel: 1,094,774 vehicle-miles traveled per day (≈400 million per year). About 1 in 18 vehicles on non-highway roads is a truck (5.7%).

Younger drivers than 92% of counties in Iowa

Compared to highways, non-highway routes see 60% fewer trucks by share.

Non-highway congestion (12.6%) runs slightly higher than the state level (14% higher).

Trip origins here have higher average income than 72% of counties in Iowa. 92% of counties in Iowa have an older driver population than Woodbury.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 63% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 23% below weekday levels, the signature of a commute-driven road network.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +7% versus the annual average.
Lowest month:
January is the quietest month, with volumes -15% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Woodbury County, Iowa, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +7% in high season.

Woodbury County vs. Iowa Traffic Comparison

Woodbury County stays close to the Iowa average; the largest gap is its average daily traffic per road, 14% above.

MetricWoodbury CountyIowa averageDifference
Traffic3,4673,042+14.0%
Truck % (Total Traffic)9.5%11.0%-13.8%
Truck % (Highway)14.2%16.1%-11.5%
Avg. Travel Time31.6 min33.0 min-4.2%

How Woodbury County compares

Woodbury County moves more traffic than any nearby county

Compared with its 4 closest neighbours, Woodbury County moves 4.0 times the total daily travel and carries 87.2% more traffic on a typical road; it has the busiest roads of the five. Bigger and busier at once: more road than the areas around it and heavier traffic on it, which makes it the centre of gravity for travel in this part of the map.

Woodbury 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
Woodbury County3,4679.5%1,970,56631.6 min12.6%
Monona County, Iowa1,35817.4%580,32034.0 min11.1%
Dakota County, Nebraska2,78810.3%357,47128.9 minN/A
Ida County, Iowa1,33011.6%213,21628.4 min5.8%
Plymouth County, Iowa1,9349.3%804,17734.5 min8.3%
Iowa average3,04211.0%N/A33.0 min11.4%

Woodbury County ranked within Iowa

Average driver age places Woodbury County #91 of 99 in Iowa - the bottom quarter of the state.

Woodbury County ranked among 99 county-level areas in Iowa (1 = highest); measures without data in every county rank a smaller field, down to 70.
MeasureWoodbury CountyIowa rank
Traffic volume (AADT)3,467#11 of 99
Highway vehicle-miles per day875,792#13 of 70
Truck share on highways14.2%#36 of 70
Highway trucks per day852#29 of 70
Average travel time31.6 min#76 of 99
Average driver income$79,280#28 of 99
Average driver age45.2 yrs#91 of 99

The two ends of this table sit far apart: #11 of 99 on average daily traffic volume, against #91 of 99 on average driver age.

Busiest roads in Woodbury County, Iowa

On their busiest stretches, the three busiest roads in Woodbury County carry 20,181 vehicles a day on average, 5.8 times the typical road in the county (3,467).

I 29 is the busiest road, at 24,280 vehicles a day, 2,967 of them trucks (12.2%). It tops the truck ranking too, with the most trucks.

Few trucks use Hamilton Boulevard: 4.5% of its traffic, under half the county's 9.5%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 29Motorway · 24,280vehicles2,967trucks · 12.2%
Road class
Motorway
Congestion ratio
18.1%
Median trip time
29.9 min
Drivers’ median age
46.1 yrs
Drivers’ average income
$81,887

I 29 carries 7.0 times the county average at its busiest, 2,967 of them trucks (12.2%, above the county-wide 9.5%).

2Gordon DrivePrimary road · 19,879vehicles1,235trucks · 6.2%
Road class
Primary road
Congestion ratio
23.5%
Median trip time
30.7 min
Drivers’ median age
45.2 yrs
Drivers’ average income
$69,976

Delays build on Gordon Drive: its congestion ratio of 24% over free-flow time is well above the county's 13%.

3Hamilton BoulevardPrimary road · 16,385vehicles745trucks · 4.5%
Road class
Primary road
Congestion ratio
26.0%
Median trip time
30.0 min
Drivers’ median age
44.9 yrs
Drivers’ average income
$81,751

Travel on Hamilton Boulevard's busiest stretch runs 26% over free-flow time, against 13% across the county, so expect slower peak hours.

4US 20Motorway · 15,664vehicles1,507trucks · 9.6%
Road class
Motorway
Congestion ratio
18.1%
Median trip time
36.5 min
Drivers’ median age
46.4 yrs
Drivers’ average income
$87,149

US 20 carries 4.5 times the county average at its busiest, 1,507 of them trucks (9.6%, in line with the county-wide 9.5%).

5Singing Hills BoulevardPrimary road · 14,422vehicles1,202trucks · 8.3%
Road class
Primary road
Congestion ratio
16.3%
Median trip time
34.7 min
Drivers’ median age
46.3 yrs
Drivers’ average income
$77,767

Singing Hills Boulevard carries 4.2 times the county average on its busiest stretch, where the median trip lasts 34.7 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 29Motorway · #1 by traffic24,280vehicles2,967trucks · 12.2%
2US 20Motorway · #4 by traffic15,664vehicles1,507trucks · 9.6%
3US 75Motorway · 11,834vehicles1,438trucks · 12.2%
Road class
Motorway
Congestion ratio
12.2%
Median trip time
39.0 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$86,979

At 3.4 times the county average, US 75 draws drivers from neighborhoods averaging $86,979 in household income.

4Gordon DrivePrimary road · #2 by traffic19,879vehicles1,235trucks · 6.2%
5Singing Hills BoulevardPrimary road · #5 by traffic14,422vehicles1,202trucks · 8.3%
How to read these road counts
  • The first number is AADT, annual average daily traffic: the vehicles passing a point on an average day, both directions combined and trucks included. On a divided highway both carriageways are added together.
  • Traffic changes along a road, with more near interchanges and towns and less in open country. Every figure for a road describes its busiest stretch in the county, so the two rankings show the same numbers for the same road.
  • The second number is the trucks on that stretch, a part of its AADT. The bar splits the AADT into cars and light vehicles (blue) and trucks (amber).
  • See segment-level AADT for any road on TrafficZoom.

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

WoodburyDepartment of Transportation

Demographic Baseline for O-D Modeling

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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Counties near Woodbury County

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

Need segment-level traffic data?

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