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Traffic heat map of Knox County, Indiana: 277 miles of roads shaded from blue (light) to red (heavy traffic), busiest on US 41 and Hart Street

Knox County, Indiana Traffic Counts

How busy are the roads of Knox County, Indiana? We measure 277 road miles, divided into 3,436 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, US 41, carries 14,994 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 Volume & Performance in Knox County, Indiana

Traffic

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

vehicles per day3,097
Trucks

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

11.1%
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.

8.8%
Drivers’ average age

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

47.8 yrs
Drivers’ average income

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

$72,437

A typical monitored road in Knox County, Indiana sees 3,097 vehicles per day, while its 277 miles of monitored roads together handle 859,637 vehicle-miles traveled per day (≈314 million per year). About 1 in 9 vehicles is a truck, in line with Indiana (12.1%).

Shorter trips than 86% of counties in Indiana

Knox's average daily traffic volume is 46% lower than the state average - 3,097 vehicles per day against 5,704 - suggesting less traffic load per road - lighter roads for freight, but less passing trade for roadside retail. In total volume terms, its road network carries about 0.5% of Indiana's statewide total of vehicle-miles. By volume, Knox's 3,097 vehicles per day trails 67% of counties in Indiana.

The average trip takes 31.4 minutes, 6% lower than the state level. On travel time, Knox runs shorter than 86% of counties in Indiana.

Congestion runs 44% lower than the state level, at a ratio of 8.8%, 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 Knox County, Indiana

Trafficvehicles per day5,062
Trucks14.2%
Average travel time43.3 min
Congestion ratio11.3%
Drivers’ average age48.0 yrs
Drivers’ average income$73,881

Highways carry more than half of all travel in Knox County, Indiana (57% of vehicle-miles). The average highway carries 5,062 vehicles per day, 73% more than the average non-highway road in the same area, which carries 2,923 vehicles per day.

With 36% of the road miles (100 miles in 280 segments), highways punch above their length, carrying 490,099 vehicle-miles traveled per day (≈179 million per year).

Fewer highway trucks than 88% of counties in Indiana

At 14.2%, highway truck share is 27% lower than the state average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.

Knox's highway truck share (14.2%) is lower than 81% of counties in Indiana. By raw truck volume, Knox carries fewer highway trucks than 88% of counties in Indiana.

non-highway traffic icon

Non-highway Traffic in Knox County, Indiana

Trafficvehicles per day2,923
Trucks6.8%
Average travel time30.4 min
Congestion ratio8.6%
Drivers’ average age47.7 yrs
Drivers’ average income$71,333

A significant share of driving in Knox County, Indiana, 43% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 2,923 vehicles per day.

Spread over 178 miles and 3,156 segments, 64% of the road network, local roads carry a lighter load per mile: 369,539 vehicle-miles traveled per day (≈135 million per year). The truck share on non-highway roads is 6.8%.

Local congestion 43% below the Indiana average

Compared to highways, non-highway routes see 52% fewer trucks by share.

Non-highway congestion (8.6%) runs 43% lower than the state average, pointing to smoother local traffic flow.

Trip origins here have lower average income than 56% of counties in Indiana. 51% of counties in Indiana have an older driver population than Knox.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Knox County vs. Indiana Traffic Comparison

Knox County's biggest difference from the Indiana average is its average daily traffic per road, 46% below it. Its highway truck share is also 27% below.

MetricKnox CountyIndiana averageDifference
Traffic3,0975,704-45.7%
Truck % (Total Traffic)11.1%12.1%-8.7%
Truck % (Highway)14.2%19.6%-27.2%
Avg. Travel Time31.4 min33.5 min-6.3%

How Knox County compares

Knox County against nearby counties

Nothing in this table sets Knox County sharply apart from the 4 areas nearest to it, though it has the second busiest roads of the five. The same kind of road, simply more of it: traffic per road matches the areas around it while the network itself is larger.

Knox County and the 4 nearest county-level areas by centroid distance, with the Indiana average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Knox County3,09711.1%859,63731.4 min8.8%
Lawrence County, Illinois2,48910.0%284,13531.6 min8.1%
Daviess County, Indiana2,70614.1%699,40736.6 min9.6%
Pike County, Indiana2,09612.3%359,33436.3 min7.1%
Gibson County, Indiana3,79914.2%1,189,65730.7 min10.4%
Indiana average5,70412.1%N/A33.5 min15.6%

Knox County ranked within Indiana

Highway truck volume places Knox County #70 of 79 in Indiana - the bottom quarter of the state.

Knox County ranked among 92 county-level areas in Indiana (1 = highest); measures without data in every county rank a smaller field, down to 79.
MeasureKnox CountyIndiana rank
Traffic volume (AADT)3,097#62 of 92
Highway vehicle-miles per day490,099#42 of 79
Truck share on highways14.2%#64 of 79
Highway trucks per day721#70 of 79
Average travel time31.4 min#79 of 92
Average driver income$72,437#52 of 92
Average driver age47.8 yrs#47 of 92

Busiest roads in Knox County, Indiana

On their busiest stretches, the three busiest roads in Knox County carry 12,385 vehicles a day on average, 4.0 times the typical road in the county (3,097).

US 41 leads with 14,994 vehicles a day, 1,942 of them trucks (12.9%). It also carries the most trucks.

Few trucks use Hart Street: 3.5% of its traffic, under half the county's 11.1%.

Traffic and freight follow different roads here: only 2 of the five busiest roads also make the top 5 for trucks.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1US 41Motorway · 14,994vehicles1,942trucks · 12.9%
Road class
Motorway
Congestion ratio
14.5%
Median trip time
39.7 min
Drivers’ median age
48.4 yrs
Drivers’ average income
$75,710

US 41 peaks at 14,994 vehicles a day, 4.8 times the county average; trucks are 12.9% of it, above the county-wide 11.1%.

2Hart StreetSecondary road · 11,318vehicles391trucks · 3.5%
Road class
Secondary road
Congestion ratio
25.5%
Median trip time
29.1 min
Drivers’ median age
47.6 yrs
Drivers’ average income
$66,772

Delays build on Hart Street: its congestion ratio of 25% over free-flow time is well above the county's 9%.

36th StreetSecondary road · 10,843vehicles404trucks · 3.7%
Road class
Secondary road
Congestion ratio
25.1%
Median trip time
31.4 min
Drivers’ median age
47.5 yrs
Drivers’ average income
$65,998

Travel on 6th Street's busiest stretch runs 25% over free-flow time, against 9% across the county, so expect slower peak hours.

4SR 441Secondary road · 8,883vehicles510trucks · 5.7%
Road class
Secondary road
Congestion ratio
19.1%
Median trip time
30.4 min
Drivers’ median age
48.0 yrs
Drivers’ average income
$67,765

SR 441 carries 2.9 times the county average at its busiest, 510 of them trucks (5.7%, below the county-wide 11.1%).

5Willow StreetSecondary road · 8,752vehicles379trucks · 4.3%
Road class
Secondary road
Congestion ratio
19.7%
Median trip time
31.5 min
Drivers’ median age
47.5 yrs
Drivers’ average income
$64,087

Willow Street carries 2.8 times the county average on its busiest stretch, where the median trip lasts 31.5 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1US 41Motorway · #1 by traffic14,994vehicles1,942trucks · 12.9%
2US 50Trunk road · 7,831vehicles772trucks · 9.9%
Road class
Trunk road
Congestion ratio
9.3%
Median trip time
36.6 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$78,602

At 2.5 times the county average, US 50 draws drivers from neighborhoods averaging $78,602 in household income.

3State Road 67Primary road · 7,478vehicles641trucks · 8.6%
Road class
Primary road
Congestion ratio
16.8%
Median trip time
32.3 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$65,416

The busiest stretch of State Road 67 carries 2.4 times the county average; trucks are 8.6% of it, below the county-wide 11.1%.

411th StPrimary road · 7,967vehicles588trucks · 7.4%
Road class
Primary road
Congestion ratio
18.8%
Median trip time
30.4 min
Drivers’ median age
48.2 yrs
Drivers’ average income
$64,271

On its busiest stretch, 11th St carries 2.6 times the county average; trucks are 7.4% of it, below the county-wide 11.1%.

5SR 441Secondary road · #4 by traffic8,883vehicles510trucks · 5.7%
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

KnoxDepartment 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 Knox County

The same traffic breakdown for the areas closest to Knox County, Indiana.

Need segment-level traffic data?

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