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Traffic heat map of Lee County, Iowa: 403 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Main Street and US 61

Lee County, Iowa Traffic Counts

How busy are the roads of Lee County, Iowa? We measure 403 road miles, divided into 3,037 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, Main Street, carries 9,976 vehicles a day, 4.8 times the average road. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
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 Lee County, Iowa

Traffic

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

vehicles per day2,066
Trucks

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

11.2%
Average travel time

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

36.1 min
Congestion ratio

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

6.0%
Drivers’ average age

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

51.5 yrs
Drivers’ average income

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

$64,041

The average monitored road in Lee County, Iowa carries 2,066 vehicles per day. Across its 403 miles of monitored roads, that adds up to 764,760 vehicle-miles traveled per day (≈279 million per year). About 1 in 9 vehicles is a truck, in line with Iowa (11.0%).

Longer trips than 78% of counties in Iowa

At 2,066 vehicles per day, the average monitored road in Lee carries 32% less traffic than the state average of 3,042, suggesting less demand on each road - lighter roads for freight, but less passing trade for roadside retail. Across the whole network, that travel is about 0.9% of Iowa's statewide total. 69% of counties in Iowa see less traffic than Lee's 2,066 vehicles per day.

At 36.1 minutes, the average travel time is 10% higher than the state level. 78% of counties in Iowa have a shorter average travel time than Lee's 36.1 minutes.

The congestion ratio of 6.0% is 47% lower, pointing to smoother traffic flow than the state level - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Lee County, Iowa

Trafficvehicles per day3,413
Trucks14.8%
Average travel time39.8 min
Congestion ratio7.7%
Drivers’ average age51.4 yrs
Drivers’ average income$63,019

Travel in Lee County, Iowa splits roughly evenly, with about half of it (50% of vehicle-miles) on highways. The average highway carries 3,413 vehicles per day, 76% more than the average non-highway road in the same area, which carries 1,941 vehicles per day.

Highways make up 27% of the monitored road miles (109 miles, 259 segments), so they carry more than their share: 378,914 vehicle-miles traveled per day (≈138 million per year).

59% of counties in Iowa move less traffic on their highways.

Fewer highway trucks than 71% of counties in Iowa

The concentration of trucks on highways (14.8%) is 8% lower than the state average for similar road classifications. The highway traffic mix is typical for Iowa: neither freight- nor commuter-dominated.

55% of counties in Iowa see a lower highway truck share than Lee's 14.8%. By raw truck volume, Lee carries fewer highway trucks than 71% of counties in Iowa.

non-highway traffic icon

Non-highway Traffic in Lee County, Iowa

Trafficvehicles per day1,941
Trucks7.6%
Average travel time35.8 min
Congestion ratio5.9%
Drivers’ average age51.5 yrs
Drivers’ average income$64,483

Travel in Lee County, Iowa splits roughly evenly, with about half of it (50% of vehicle-miles) on local roads. On the average non-highway road, that comes to 1,941 vehicles per day.

Local roads make up 73% of the monitored road miles (294 miles in 2,778 segments) but carry less than their share of travel: 385,845 vehicle-miles traveled per day (≈141 million per year). Trucks make up 7.6% of non-highway traffic, about 1 in 13 vehicles.

Drivers from lower-income areas than 91% of counties in Iowa

The concentration of trucks on non-highway roads is 49% lower than on highways.

Non-highway congestion (5.9%) runs 47% lower than the state average, pointing to smoother local traffic flow.

91% of counties in Iowa see higher average driver income among trip origins than Lee. Lee's median driver age is higher than 73% of counties in Iowa.

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 20% 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 +8% 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 Lee 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.

Lee County vs. Iowa Traffic Comparison

The average daily traffic per road sets Lee County apart: 32% below the Iowa average.

MetricLee CountyIowa averageDifference
Traffic2,0663,042-32.1%
Truck % (Total Traffic)11.2%11.0%+1.5%
Truck % (Highway)14.8%16.1%-8.1%
Avg. Travel Time36.1 min33.0 min+9.5%

How Lee County compares

Lee County moves more traffic than any nearby county

Against the 4 nearest areas, Lee County moves 2.1 times the total daily travel; it has the second busiest roads of the five.

Lee 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
Lee County2,06611.2%764,76036.1 min6.0%
Clark County, Missouri1,52011.3%253,09931.9 minN/A
Van Buren County, Iowa92010.0%148,47834.1 min4.3%
Hancock County, Illinois1,6929.6%402,26732.6 min5.6%
Des Moines County, Iowa2,8978.0%639,86030.8 min8.1%
Iowa average3,04211.0%N/A33.0 min11.4%

Lee County ranked within Iowa

Average driver income places Lee County #90 of 99 in Iowa - the bottom quarter of the state.

Lee County ranked among 99 county-level areas in Iowa (1 = highest); measures without data in every county rank a smaller field, down to 70.
MeasureLee CountyIowa rank
Traffic volume (AADT)2,066#31 of 99
Highway vehicle-miles per day378,914#29 of 70
Truck share on highways14.8%#32 of 70
Highway trucks per day505#50 of 70
Average travel time36.1 min#23 of 99
Average driver income$64,041#90 of 99
Average driver age51.5 yrs#27 of 99

Lee County ranks #23 of 99 on average travel time but #90 of 99 on average driver income - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Lee County, Iowa

On their busiest stretches, the three busiest roads in Lee County carry 9,111 vehicles a day on average, 4.4 times the typical road in the county (2,066).

Main Street is the busiest road, at 9,976 vehicles a day, 599 of them trucks (6.0%). Avenue of the Saints carries the most trucks, 1,556 a day (18.1% of its traffic), although it ranks #3 for all traffic.

Trucks make up 18.1% of traffic on Avenue of the Saints, against 11.2% across all roads in the county.

Avenue of the Saints carries longer journeys than most roads here, with a median trip of 48.7 minutes against 36.1 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Main StreetPrimary road · 9,976vehicles599trucks · 6.0%
Road class
Primary road
Congestion ratio
12.3%
Median trip time
37.4 min
Drivers’ median age
52.2 yrs
Drivers’ average income
$52,478

At 4.8 times the county average, Main Street draws drivers from neighborhoods averaging $52,478 in household income.

2US 61Trunk road · 8,738vehicles852trucks · 9.8%
Road class
Trunk road
Congestion ratio
10.2%
Median trip time
30.7 min
Drivers’ median age
51.8 yrs
Drivers’ average income
$59,553

The busiest stretch of US 61 carries 4.2 times the county average; trucks are 9.8% of it, below the county-wide 11.2%.

3Avenue of the SaintsTrunk road · 8,619vehicles1,556trucks · 18.1%
Road class
Trunk road
Congestion ratio
9.2%
Median trip time
48.7 min
Drivers’ median age
49.9 yrs
Drivers’ average income
$73,836

On its busiest stretch, Avenue of the Saints carries 4.2 times the county average; trucks are 18.1% of it, above the county-wide 11.2%.

4Avenue LPrimary road · 7,517vehicles506trucks · 6.7%
Road class
Primary road
Congestion ratio
9.8%
Median trip time
33.8 min
Drivers’ median age
51.8 yrs
Drivers’ average income
$56,693

Avenue L peaks at 7,517 vehicles a day, 3.6 times the county average; trucks are 6.7% of it, below the county-wide 11.2%.

5Old Highway 61Primary road · 6,117vehicles442trucks · 7.2%
Road class
Primary road
Congestion ratio
7.3%
Median trip time
33.2 min
Drivers’ median age
52.0 yrs
Drivers’ average income
$54,248

Old Highway 61 carries 3.0 times the county average at its busiest, 442 of them trucks (7.2%, below the county-wide 11.2%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1Avenue of the SaintsTrunk road · #3 by traffic8,619vehicles1,556trucks · 18.1%
2US 61Trunk road · #2 by traffic8,738vehicles852trucks · 9.8%
3Main StreetPrimary road · #1 by traffic9,976vehicles599trucks · 6.0%
4354th AvenueTrunk road · 4,602vehicles510trucks · 11.1%
Road class
Trunk road
Median trip time
42.8 min
Drivers’ median age
51.9 yrs
Drivers’ average income
$65,619

354th Avenue carries 2.2 times the county average on its busiest stretch, where the median trip lasts 42.8 minutes.

5Avenue LPrimary road · #4 by traffic7,517vehicles506trucks · 6.7%
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

LeeDepartment 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 Lee County

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

Need segment-level traffic data?

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