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Traffic heat map of Davis County, Iowa: 149 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Washington Street and Weaver Road

Davis County, Iowa Traffic Counts

Traffic analytics for Davis County, Iowa, calculated from real-world mobile and sensor networks on 754 road segments (149 road miles, about 1,044 ft each). Its busiest road, Washington Street, carries 5,703 vehicles a day, 3.9 times the average road. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
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 Davis County, Iowa

Traffic

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

vehicles per day1,464
Trucks

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

10.6%
Average travel time

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

33.8 min
Congestion ratio

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

4.6%
Drivers’ average age

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

48.8 yrs
Drivers’ average income

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

$78,614

A typical monitored road in Davis County, Iowa sees 1,464 vehicles per day, while its 149 miles of monitored roads together handle 163,251 vehicle-miles traveled per day (≈59.6 million per year). About 1 in 9 vehicles is a truck, in line with Iowa (11.0%).

Congestion 60% below the Iowa average

Davis's average daily traffic volume is 52% lower than the state average - 1,464 vehicles per day against 3,042 - suggesting less traffic load per road - quiet roads that suit freight movement more than drive-by retail. In total volume terms, its road network carries about 0.2% of Iowa's statewide total of vehicle-miles. 61% of counties in Iowa see more traffic than Davis's 1,464 vehicles per day.

The average trip takes 33.8 minutes, on par with the state level. Its average travel time of 33.8 minutes is longer than 56% of counties in Iowa.

The congestion ratio of 4.6% is 60% lower, pointing to smoother traffic flow than the state level - free-flowing roads make scheduled deliveries highly predictable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Davis County, Iowa

Trafficvehicles per day3,670
Trucks12.2%
Average travel time35.3 min
Congestion ratio8.1%
Drivers’ average age48.8 yrs
Drivers’ average income$79,485

Travel in Davis County, Iowa splits roughly evenly, with about half of it (52% of vehicle-miles) on highways. The average highway carries 3,670 vehicles per day, 378% more than the average non-highway road in the same area, which carries 768 vehicles per day.

Highways make up 20% of the monitored road miles (29 miles, 181 segments), so they carry more than their share: 84,626 vehicle-miles traveled per day (≈30.9 million per year).

Fewer highway trucks than 96% of counties in Iowa

The concentration of trucks on highways (12.2%) is 25% lower than the state average for similar road classifications. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

Davis's highway truck share (12.2%) is lower than 78% of counties in Iowa. 96% of counties in Iowa see more highway trucks per day than Davis's roughly 446.

non-highway traffic icon

Non-highway Traffic in Davis County, Iowa

Trafficvehicles per day768
Trucks9.0%
Average travel time33.3 min
Congestion ratio3.5%
Drivers’ average age49.1 yrs
Drivers’ average income$77,745

Travel in Davis County, Iowa splits roughly evenly, with about half of it (48% of vehicle-miles) on local roads. On the average non-highway road, that comes to 768 vehicles per day.

Spread over 120 miles and 573 segments, 80% of the road network, local roads carry a lighter load per mile: 78,625 vehicle-miles traveled per day (≈28.7 million per year). The truck share on non-highway roads is 9.0%.

Local congestion 69% below the Iowa average

Non-highway roads carry a truck concentration that's 26% lower than the highway network.

At 69% lower than the state level, the non-highway congestion ratio of 3.5% signals easier movement on local roads.

Davis's average driver income is higher than 71% of counties in Iowa. The driver population here skews younger than 61% 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–6:00 PM, with volumes reaching approximately 78% higher than the daily average.
Weekend traffic:
Weekends are much quieter: volumes run about 24% 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 +14% versus the annual average.
Lowest month:
January is the quietest month, with volumes -19% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Davis County, Iowa, the peak hour concentrates about 7% of the day's traffic, and there is a strong seasonal swing of +14% in high season.

Davis County vs. Iowa Traffic Comparison

Of the four measures, average daily traffic per road differs most: Davis County runs 52% below the Iowa average. Its highway truck share is also 25% below.

MetricDavis CountyIowa averageDifference
Traffic1,4643,042-51.9%
Truck % (Total Traffic)10.6%11.0%-3.4%
Truck % (Highway)12.2%16.1%-24.5%
Avg. Travel Time33.8 min33.0 min+2.4%

How Davis County compares

Davis County against nearby counties

Davis County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the third busiest roads of the five. The same kind of road, just less of it: traffic per road matches the areas around it while the network itself is smaller.

Davis 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
Davis County1,46410.6%163,25133.8 min4.6%
Schuyler County, Missouri1,39911.5%133,33146.5 minN/A
Wapello County, Iowa2,37010.4%699,12534.5 min7.3%
Scotland County, Missouri1,07610.6%87,30733.9 minN/A
Appanoose County, Iowa1,6869.1%205,57528.3 min8.3%
Iowa average3,04211.0%N/A33.0 min11.4%

Davis County ranked within Iowa

Davis County sits in the bottom quarter of the Iowa field on highway truck volume, at #67 of 70.

Davis County ranked among 99 county-level areas in Iowa (1 = highest); measures without data in every county rank a smaller field, down to 70.
MeasureDavis CountyIowa rank
Traffic volume (AADT)1,464#61 of 99
Highway vehicle-miles per day84,626#64 of 70
Truck share on highways12.2%#54 of 70
Highway trucks per day446#67 of 70
Average travel time33.8 min#44 of 99
Average driver income$78,614#29 of 99
Average driver age48.8 yrs#61 of 99

The two ends of this table sit far apart: #29 of 99 on average driver income, against #67 of 70 on highway truck volume.

Busiest roads in Davis County, Iowa

On their busiest stretches, the three busiest roads in Davis County carry 5,052 vehicles a day on average, 3.5 times the typical road in the county (1,464).

Washington Street is the busiest road, at 5,703 vehicles a day, 562 of them trucks (9.9%). It tops the truck ranking too, with the most trucks.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Washington StreetTrunk road · 5,703vehicles562trucks · 9.9%
Road class
Trunk road
Congestion ratio
6.8%
Median trip time
36.9 min
Drivers’ median age
48.2 yrs
Drivers’ average income
$81,941

Washington Street carries 3.9 times the county average on its busiest stretch, where the median trip lasts 36.9 minutes.

2Weaver RoadTrunk road · 4,980vehicles490trucks · 9.8%
Road class
Trunk road
Congestion ratio
8.6%
Median trip time
33.1 min
Drivers’ median age
48.4 yrs
Drivers’ average income
$82,839

At 3.4 times the county average, Weaver Road draws drivers from neighborhoods averaging $82,839 in household income.

3US 63Trunk road · 4,474vehicles490trucks · 11.0%
Road class
Trunk road
Congestion ratio
10.0%
Median trip time
36.5 min
Drivers’ median age
48.5 yrs
Drivers’ average income
$80,807

The busiest stretch of US 63 carries 3.1 times the county average; trucks are 11.0% of it, in line with the county-wide 10.6%.

4Smith StreetTrunk road · 4,336vehicles464trucks · 10.7%
Road class
Trunk road
Median trip time
29.1 min
Drivers’ median age
49.3 yrs
Drivers’ average income
$76,833

On its busiest stretch, Smith Street carries 3.0 times the county average; trucks are 10.7% of it, in line with the county-wide 10.6%.

5IA 2Primary road · 1,822vehicles178trucks · 9.8%
Road class
Primary road
Congestion ratio
4.2%
Median trip time
32.4 min
Drivers’ median age
48.1 yrs
Drivers’ average income
$71,042

IA 2 peaks at 1,822 vehicles a day, 24% more than the county average; trucks are 9.8% of it, below the county-wide 10.6%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Washington StreetTrunk road · #1 by traffic5,703vehicles562trucks · 9.9%
2Weaver RoadTrunk road · #2 by traffic4,980vehicles490trucks · 9.8%
3US 63Trunk road · #3 by traffic4,474vehicles490trucks · 11.0%
4Smith StreetTrunk road · #4 by traffic4,336vehicles464trucks · 10.7%
5IA 2Primary road · #5 by traffic1,822vehicles178trucks · 9.8%
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

DavisDepartment 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 Davis County

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

Need segment-level traffic data?

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