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Traffic heat map of Louisa County, Iowa: 193 miles of roads shaded from blue (light) to red (heavy traffic), busiest on US 61 and James L Hodges Avenue

Louisa County, Iowa Traffic Counts

Traffic analytics for Louisa County, Iowa, calculated from real-world mobile and sensor networks on 1,999 road segments (193 road miles, about 511 ft each). Its busiest road, US 61, carries 7,675 vehicles a day, 6.5 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 Louisa County, Iowa

Traffic

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

vehicles per day1,180
Trucks

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

10.7%
Average travel time

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

38.6 min
Congestion ratio

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

5.3%
Drivers’ average age

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

50.6 yrs
Drivers’ average income

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

$76,735

Our data shows 1,180 vehicles per day on the average road in Louisa County, Iowa, and 238,874 vehicle-miles traveled per day (≈87.2 million per year) across its 193 miles of monitored roads. About 1 in 9 vehicles is a truck, in line with Iowa (11.0%).

Longer trips than 90% of counties in Iowa

At 1,180 vehicles per day, the average monitored road in Louisa carries 61% less traffic than the state average of 3,042, suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Network-wide, Louisa accounts for about 0.3% of Iowa's statewide total of vehicle-miles. By volume, Louisa's 1,180 vehicles per day trails 85% of counties in Iowa.

Journey times run 17% higher than the state level, at 38.6 minutes on average. Its average travel time of 38.6 minutes is longer than 90% of counties in Iowa.

At 54% lower than the state level, the 5.3% congestion ratio signals smoother traffic flow - free-flowing roads make scheduled deliveries highly predictable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Louisa County, Iowa

Trafficvehicles per day4,568
Trucks12.2%
Average travel time44.9 min
Congestion ratio11.9%
Drivers’ average age51.2 yrs
Drivers’ average income$72,418

Highways carry a significant share of travel in Louisa County, Iowa: 41% of all vehicle-miles. The average highway carries 4,568 vehicles per day, 415% more than the average non-highway road in the same area, which carries 888 vehicles per day.

That comes from just 13% of the monitored road miles: 24 miles in 159 segments, carrying 98,993 vehicle-miles traveled per day (≈36.1 million per year).

Lower highway truck share than 78% 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.

By truck concentration, highways here trail 78% of counties in Iowa. 78% of counties in Iowa see more highway trucks per day than Louisa's roughly 555.

non-highway traffic icon

Non-highway Traffic in Louisa County, Iowa

Trafficvehicles per day888
Trucks9.7%
Average travel time38.1 min
Congestion ratio4.7%
Drivers’ average age49.9 yrs
Drivers’ average income$79,376

Local roads carry more than half of all travel in Louisa County, Iowa (59% of vehicle-miles). The average non-highway road carries 888 vehicles per day.

Local roads make up 87% of the monitored road miles (169 miles in 1,840 segments) but carry less than their share of travel: 139,881 vehicle-miles traveled per day (≈51.1 million per year). About 1 in 10 vehicles on non-highway roads is a truck (9.7%).

Local congestion 57% below the Iowa average

The concentration of trucks on non-highway roads is 20% lower than on highways.

Non-highway congestion (4.7%) runs 57% lower than the state average, pointing to smoother local traffic flow.

63% of counties in Iowa see lower average driver income among trip origins than Louisa. Louisa's median driver age is higher than 54% of counties in Iowa.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Louisa County, Iowa, the peak hour concentrates about 8% of the day's traffic.

Louisa County vs. Iowa Traffic Comparison

Of the four measures, average daily traffic per road differs most: Louisa County runs 61% below the Iowa average. Its highway truck share is also 25% below.

MetricLouisa CountyIowa averageDifference
Traffic1,1803,042-61.2%
Truck % (Total Traffic)10.7%11.0%-2.6%
Truck % (Highway)12.2%16.1%-24.5%
Avg. Travel Time38.6 min33.0 min+17.0%

How Louisa County compares

Louisa County moves the least traffic of its nearby counties

Against the 4 nearest areas, Louisa County carries 47.5% less traffic on a typical road and moves 36.4% of the total daily travel; it has the quietest roads of the five. Trips here run longer without running slower: distance, not congestion, is what drivers spend their time on.

Louisa 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
Louisa County1,18010.7%238,87438.6 min5.3%
Henry County, Iowa1,77812.3%590,23232.1 min6.1%
Washington County, Iowa1,82610.4%648,07232.0 min7.7%
Muscatine County, Iowa2,4998.7%746,54833.6 min8.4%
Des Moines County, Iowa2,8978.0%639,86030.8 min8.1%
Iowa average3,04211.0%N/A33.0 min11.4%

Louisa County ranked within Iowa

Average travel time places Louisa County #11 of 99 in Iowa - the top quarter of the state.

Louisa County ranked among 99 county-level areas in Iowa (1 = highest); measures without data in every county rank a smaller field, down to 70.
MeasureLouisa CountyIowa rank
Traffic volume (AADT)1,180#84 of 99
Highway vehicle-miles per day98,993#61 of 70
Truck share on highways12.2%#54 of 70
Highway trucks per day555#55 of 70
Average travel time38.6 min#11 of 99
Average driver income$76,735#37 of 99
Average driver age50.6 yrs#46 of 99

The two ends of this table sit far apart: #11 of 99 on average travel time, against #61 of 70 on highway travel volume.

Busiest roads in Louisa County, Iowa

Traffic concentrates on a few corridors: the three busiest roads average 6,203 vehicles a day, against 1,180 on the average road in Louisa County.

US 61 is the busiest road, at 7,675 vehicles a day, 926 of them trucks (12.1%). It tops the truck ranking too, with the most trucks.

Oak Street carries longer journeys than most roads here, with a median trip of 59.5 minutes against 38.6 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1US 61Motorway · 7,675vehicles926trucks · 12.1%
Road class
Motorway
Median trip time
45.8 min
Drivers’ median age
50.3 yrs
Drivers’ average income
$71,462

US 61 carries 6.5 times the county average at its busiest, 926 of them trucks (12.1%, above the county-wide 10.7%).

2James L Hodges AvenueTrunk road · 5,657vehicles786trucks · 13.9%
Road class
Trunk road
Congestion ratio
13.4%
Median trip time
44.9 min
Drivers’ median age
51.8 yrs
Drivers’ average income
$69,699

The busiest stretch of James L Hodges Avenue carries 4.8 times the county average; trucks are 13.9% of it, above the county-wide 10.7%.

3Baxter StreetTrunk road · 5,277vehicles798trucks · 15.1%
Road class
Trunk road
Congestion ratio
12.8%
Median trip time
48.6 min
Drivers’ median age
52.6 yrs
Drivers’ average income
$71,308

On its busiest stretch, Baxter Street carries 4.5 times the county average; trucks are 15.1% of it, above the county-wide 10.7%.

4IA 92Primary road · 3,806vehicles417trucks · 11.0%
Road class
Primary road
Congestion ratio
9.2%
Median trip time
45.4 min
Drivers’ median age
49.0 yrs
Drivers’ average income
$80,539

IA 92 peaks at 3,806 vehicles a day, 3.2 times the county average; trucks are 11.0% of it, in line with the county-wide 10.7%.

5Oak StreetPrimary road · 3,232vehicles358trucks · 11.1%
Road class
Primary road
Congestion ratio
7.5%
Median trip time
59.5 min
Drivers’ median age
47.7 yrs
Drivers’ average income
$77,724

Oak Street carries 2.7 times the county average at its busiest, 358 of them trucks (11.1%, in line with the county-wide 10.7%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 61Motorway · #1 by traffic7,675vehicles926trucks · 12.1%
2Baxter StreetTrunk road · #3 by traffic5,277vehicles798trucks · 15.1%
3James L Hodges AvenueTrunk road · #2 by traffic5,657vehicles786trucks · 13.9%
4IA 92Primary road · #4 by traffic3,806vehicles417trucks · 11.0%
5Oak StreetPrimary road · #5 by traffic3,232vehicles358trucks · 11.1%
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

LouisaDepartment 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 Louisa County

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

Need segment-level traffic data?

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