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Traffic heat map of Benton County, Iowa: 356 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Avenue of the Saints and Lincoln Highway

Benton County, Iowa Traffic Counts

Its busiest road, Avenue of the Saints, carries 16,865 vehicles a day, 9.0 times the average road. This page breaks down traffic in Benton County, Iowa across 356 miles of monitored roads split into 3,843 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 Benton County, Iowa

Traffic

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

vehicles per day1,881
Trucks

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

10.4%
Average travel time

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

31.4 min
Congestion ratio

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

6.9%
Drivers’ average age

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

48.4 yrs
Drivers’ average income

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

$88,612

The average monitored road in Benton County, Iowa carries 1,881 vehicles per day. Across its 356 miles of monitored roads, that adds up to 853,928 vehicle-miles traveled per day (≈312 million per year). About 1 in 10 vehicles is a truck, in line with Iowa (11.0%).

Shorter trips than 80% of counties in Iowa

At 1,881 vehicles per day, the average monitored road in Benton carries 38% 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 1.0% of Iowa's statewide total of vehicle-miles. By volume, Benton's 1,881 vehicles per day outpaces 60% of counties in Iowa.

The average trip takes 31.4 minutes, on par with the state level. Its average travel time of 31.4 minutes is shorter than 80% of counties in Iowa.

Congestion runs 39% lower than the state level, at a ratio of 6.9%, which means smoother traffic flow - travel times are easy to plan around for scheduled deliveries.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Benton County, Iowa

Trafficvehicles per day6,991
Trucks13.2%
Average travel time46.6 min
Congestion ratio16.8%
Drivers’ average age47.1 yrs
Drivers’ average income$86,047

Travel in Benton County, Iowa splits roughly evenly, with about half of it (50% of vehicle-miles) on highways. The average highway carries 6,991 vehicles per day, 330% more than the average non-highway road in the same area, which carries 1,624 vehicles per day.

Highways make up 17% of the monitored road miles (59 miles, 184 segments), so they carry more than their share: 423,407 vehicle-miles traveled per day (≈155 million per year).

By highway travel volume, Benton outranks 67% of counties in Iowa.

Lower highway truck share than 68% of counties in Iowa

At 13.2%, highway truck share is 18% lower than the state average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

Benton's highway truck share (13.2%) is lower than 68% of counties in Iowa. 61% of counties in Iowa see fewer highway trucks per day than Benton's roughly 926.

non-highway traffic icon

Non-highway Traffic in Benton County, Iowa

Trafficvehicles per day1,624
Trucks7.5%
Average travel time30.7 min
Congestion ratio6.4%
Drivers’ average age49.8 yrs
Drivers’ average income$90,134

Travel in Benton County, Iowa splits roughly evenly, with about half of it (50% of vehicle-miles) on local roads. The average non-highway road carries 1,624 vehicles per day.

Spread over 297 miles and 3,659 segments, 83% of the road network, local roads carry a lighter load per mile: 430,520 vehicle-miles traveled per day (≈157 million per year). About 1 in 13 vehicles on non-highway roads is a truck (7.5%).

Drivers from higher-income areas than 93% of counties in Iowa

Compared to highways, non-highway routes see 43% fewer trucks by share.

Non-highway congestion (6.4%) runs 42% lower than the state average, pointing to smoother local traffic flow.

Trip origins here have higher average income than 93% of counties in Iowa. 66% of counties in Iowa have an older driver population than Benton.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 75% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 17% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +8% versus the annual average.
Lowest month:
January is the quietest month, with volumes -17% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Benton County, Iowa, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +8% in high season.

Benton County vs. Iowa Traffic Comparison

Benton County's biggest difference from the Iowa average is its average daily traffic per road, 38% below it. Its highway truck share is also 18% below.

MetricBenton CountyIowa averageDifference
Traffic1,8813,042-38.2%
Truck % (Total Traffic)10.4%11.0%-5.7%
Truck % (Highway)13.2%16.1%-17.7%
Avg. Travel Time31.4 min33.0 min-4.7%

How Benton County compares

Benton County against nearby counties

Set against the average of the 4 areas nearest to it, Benton County moves 40.6% of the total daily travel and carries 36.1% less traffic on a typical road; it has the third busiest roads of the five. Less traffic and more room for it - the roads here run both quieter and freer than the areas around them.

Benton 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
Benton County1,88110.4%853,92831.4 min6.9%
Linn County, Iowa5,1077.5%4,350,19234.6 min14.5%
Tama County, Iowa1,38211.0%485,32542.3 min5.6%
Iowa County, Iowa1,72817.9%954,05733.7 min6.5%
Black Hawk County, Iowa3,5619.1%2,621,51633.8 min10.6%
Iowa average3,04211.0%N/A33.0 min11.4%

Benton County ranked within Iowa

Benton County sits in the top quarter of the Iowa field on average driver income, at #8 of 99.

Benton County ranked among 99 county-level areas in Iowa (1 = highest); measures without data in every county rank a smaller field, down to 70.
MeasureBenton CountyIowa rank
Traffic volume (AADT)1,881#40 of 99
Highway vehicle-miles per day423,407#24 of 70
Truck share on highways13.2%#48 of 70
Highway trucks per day926#28 of 70
Average travel time31.4 min#79 of 99
Average driver income$88,612#8 of 99
Average driver age48.4 yrs#66 of 99

Benton County ranks #8 of 99 on average driver income but #79 of 99 on average travel time - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Benton County, Iowa

On their busiest stretches, the three busiest roads in Benton County carry 11,177 vehicles a day on average, 5.9 times the typical road in the county (1,881).

Avenue of the Saints is the busiest road, at 16,865 vehicles a day, 2,618 of them trucks (15.5%). No other road comes close: Lincoln Highway, in second place, carries 8,415. It tops the truck ranking too, with the most trucks.

Trips using Lincoln Highway are long: a median of 51.5 minutes against 31.4 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Avenue of the SaintsMotorway · 16,865vehicles2,618trucks · 15.5%
Road class
Motorway
Congestion ratio
16.8%
Median trip time
49.4 min
Drivers’ median age
45.4 yrs
Drivers’ average income
$89,371

Avenue of the Saints carries through traffic: the median trip using it lasts 49.4 minutes, against 31.4 for the county.

2Lincoln HighwayTrunk road · 8,415vehicles1,097trucks · 13.0%
Road class
Trunk road
Congestion ratio
17.7%
Median trip time
51.5 min
Drivers’ median age
47.8 yrs
Drivers’ average income
$79,317

Delays build on Lincoln Highway: its congestion ratio of 18% over free-flow time is well above the county's 7%.

316th Avenue SouthwestTrunk road · 8,251vehicles785trucks · 9.5%
Road class
Trunk road
Congestion ratio
18.8%
Median trip time
42.3 min
Drivers’ median age
46.2 yrs
Drivers’ average income
$88,033

Travel on 16th Avenue Southwest's busiest stretch runs 19% over free-flow time, against 7% across the county, so expect slower peak hours.

4US 30Trunk road · 7,294vehicles723trucks · 9.9%
Road class
Trunk road
Congestion ratio
15.9%
Median trip time
43.2 min
Drivers’ median age
46.2 yrs
Drivers’ average income
$87,209

Drivers on US 30 are on long journeys, a median 43.2 minutes against 31.4 county-wide: a through route more than a local street.

5US 151Primary road · 7,034vehicles572trucks · 8.1%
Road class
Primary road
Congestion ratio
15.9%
Median trip time
36.3 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$92,619

On its busiest stretch, US 151 carries 3.7 times the county average; trucks are 8.1% of it, below the county-wide 10.4%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Avenue of the SaintsMotorway · #1 by traffic16,865vehicles2,618trucks · 15.5%
2Lincoln HighwayTrunk road · #2 by traffic8,415vehicles1,097trucks · 13.0%
316th Avenue SouthwestTrunk road · #3 by traffic8,251vehicles785trucks · 9.5%
4US 30Trunk road · #4 by traffic7,294vehicles723trucks · 9.9%
573rd StreetTrunk road · 6,317vehicles622trucks · 9.8%
Road class
Trunk road
Congestion ratio
14.5%
Median trip time
38.8 min
Drivers’ median age
49.9 yrs
Drivers’ average income
$85,866

73rd Street peaks at 6,317 vehicles a day, 3.4 times the county average; trucks are 9.8% of it, below the county-wide 10.4%.

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

BentonDepartment 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 Benton County

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

Need segment-level traffic data?

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