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Traffic heat map of Adair County, Iowa: 190 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 80 and Division Street

Adair County, Iowa Traffic Counts

Its highways carry the highest truck share of any county in Iowa, 30.7%. This page breaks down traffic in Adair County, Iowa across 190 miles of monitored roads split into 1,553 segments, using multi-sourced mobile and sensor data. It goes beyond raw counts to truck flow, congestion and who is driving, so site selection and route planning rest on evidence.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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total traffic icon

Total Traffic Volume & Performance in Adair County, Iowa

Traffic

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

vehicles per day1,810
Trucks

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

24.8%
Average travel time

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

35.6 min
Drivers’ average age

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

47.9 yrs
Drivers’ average income

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

$75,986

The average monitored road in Adair County, Iowa carries 1,810 vehicles per day. Across its 190 miles of monitored roads, that adds up to 694,620 vehicle-miles traveled per day (≈254 million per year). About 1 in 4 vehicles is a truck, well above the 11.0% across Iowa - a freight-heavy mix.

Longer trips than 74% of counties in Iowa

At 1,810 vehicles per day, the average monitored road in Adair carries 40% less traffic than the state average of 3,042, suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. In total volume terms, its road network carries about 0.8% of Iowa's statewide total of vehicle-miles. 55% of counties in Iowa see less traffic than Adair's 1,810 vehicles per day.

At 35.6 minutes, the average travel time is 8% higher than the state level. On travel time, Adair runs longer than 74% of counties in Iowa.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Adair County, Iowa

Trafficvehicles per day9,247
Trucks30.7%
Average travel time64.0 min
Drivers’ average age46.5 yrs
Drivers’ average income$83,934

Most travel in Adair County, Iowa happens on highways, 74% of all vehicle-miles. The average highway carries 9,247 vehicles per day, 494% more than the average non-highway road in the same area, which carries 1,557 vehicles per day.

With 27% of the road miles (51 miles in 51 segments), highways punch above their length, carrying 512,539 vehicle-miles traveled per day (≈187 million per year).

That is more highway travel volume than 74% of counties in Iowa.

The highest highway truck share of any county in Iowa

Highway truck concentration here runs 90% higher than the state average, at 30.7%. That marks Adair as a major freight corridor, where highway access is what logistics operators compete on.

By share, Adair has the highest highway truck concentration in Iowa, at 30.7%. At roughly 3,093 trucks per day, Adair carries the highest volume of highway trucks in Iowa.

non-highway traffic icon

Non-highway Traffic in Adair County, Iowa

Trafficvehicles per day1,557
Trucks8.3%
Average travel time34.6 min
Drivers’ average age51.3 yrs
Drivers’ average income$69,114

At 26% of vehicle-miles, local roads carry a smaller share of the traffic in Adair County, Iowa than highways. On the average non-highway road, that comes to 1,557 vehicles per day.

Local roads make up 73% of the monitored road miles (140 miles in 1,502 segments) but carry less than their share of travel: 182,081 vehicle-miles traveled per day (≈66.5 million per year). About 1 in 12 vehicles on non-highway roads is a truck (8.3%).

Younger drivers than 73% of counties in Iowa

The concentration of trucks on non-highway roads is 73% lower than on highways.

Adair's average driver income is higher than 62% of counties in Iowa. The driver population here skews younger than 73% of counties in Iowa.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Adair County vs. Iowa Traffic Comparison

The truck share sets Adair County apart: 125% above the Iowa average. Its highway truck share is also 90% above.

MetricAdair CountyIowa averageDifference
Traffic1,8103,042-40.5%
Truck % (Total Traffic)24.8%11.0%+125.2%
Truck % (Highway)30.7%16.1%+90.5%
Avg. Travel Time35.6 min33.0 min+7.8%

How Adair County compares

Adair County has a higher truck share than any nearby county

Set against the average of the 4 areas nearest to it, Adair County runs 13.0 percentage points more truck traffic; it has the fourth busiest roads of the five. Traffic volume here matches the areas around it, but more of that traffic is trucks - a difference in what routes through, not in how much.

Adair 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
Adair County1,81024.8%694,62035.6 minN/A
Madison County, Iowa2,5178.9%480,48228.7 min10.1%
Cass County, Iowa2,32021.3%915,50940.1 minN/A
Adams County, Iowa9829.5%108,62938.9 minN/A
Union County, Iowa2,5287.6%249,51531.5 min4.8%
Iowa average3,04211.0%N/A33.0 min11.4%

Adair County ranked within Iowa

Adair County records the state's highest truck share on highways and highway truck volume - 2 first places in one county.

Adair County ranked among 99 county-level areas in Iowa (1 = highest); measures without data in every county rank a smaller field, down to 70.
MeasureAdair CountyIowa rank
Traffic volume (AADT)1,810#45 of 99
Highway vehicle-miles per day512,539#19 of 70
Truck share on highways30.7%#1 of 70
Highway trucks per day2,836#1 of 70
Average travel time35.6 min#26 of 99
Average driver income$75,986#38 of 99
Average driver age47.9 yrs#73 of 99

Busiest roads in Adair County, Iowa

The three busiest roads in Adair County average 9,712 vehicles a day, 5.4 times the county average of 1,810 across all its monitored roads.

I 80 leads with 20,166 vehicles a day, 6,184 of them trucks (30.7%). That is 3.8 times the next road, Division Street (5,248). It also carries the most trucks.

I 80 carries longer journeys than most roads here, with a median trip of 64.0 minutes against 35.6 county-wide.

Division Street is busy with cars rather than freight: only 5.3% of its traffic is trucks, against 24.8% county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 80Motorway · 20,166vehicles6,184trucks · 30.7%
Road class
Motorway
Median trip time
64.0 min
Drivers’ median age
46.5 yrs
Drivers’ average income
$83,934

I 80 carries 11.1 times the county average on its busiest stretch, where the median trip lasts 64.0 minutes.

2Division StreetSecondary road · 5,248vehicles280trucks · 5.3%
Road class
Secondary road
Median trip time
31.8 min
Drivers’ median age
49.6 yrs
Drivers’ average income
$76,285

The busiest stretch of Division Street carries 2.9 times the county average; trucks are 5.3% of it, below the county-wide 24.8%.

3Southwest Kent StreetPrimary road · 3,722vehicles260trucks · 7.0%
Road class
Primary road
Median trip time
32.5 min
Drivers’ median age
53.5 yrs
Drivers’ average income
$60,830

On its busiest stretch, Southwest Kent Street carries 2.1 times the county average; trucks are 7.0% of it, below the county-wide 24.8%.

4Southeast Kent StreetPrimary road · 3,384vehicles245trucks · 7.2%
Road class
Primary road
Median trip time
33.6 min
Drivers’ median age
52.5 yrs
Drivers’ average income
$61,652

Southeast Kent Street carries 87% more than the county average on its busiest stretch, where the median trip lasts 33.6 minutes.

55th StreetSecondary road · 3,342vehicles327trucks · 9.8%
Road class
Secondary road
Median trip time
36.9 min
Drivers’ median age
52.7 yrs
Drivers’ average income
$68,606

At 85% more than the county average, 5th Street draws drivers from neighborhoods averaging $68,606 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 80Motorway · #1 by traffic20,166vehicles6,184trucks · 30.7%
25th StreetSecondary road · #5 by traffic3,342vehicles327trucks · 9.8%
3Division StreetSecondary road · #2 by traffic5,248vehicles280trucks · 5.3%
4Northeast 6th StreetPrimary road · 3,145vehicles264trucks · 8.4%
Road class
Primary road
Median trip time
31.3 min
Drivers’ median age
52.7 yrs
Drivers’ average income
$61,960

Northeast 6th Street is busy by local standards, at 74% more than the county average on its busiest stretch; trucks are 8.4% of it, below the county-wide 24.8%.

5Southwest Kent StreetPrimary road · #3 by traffic3,722vehicles260trucks · 7.0%
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

AdairDepartment 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 Adair County

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

Need segment-level traffic data?

Identify traffic patterns street by street and analyze the exact corridors that matter to your project.