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Traffic heat map of Bartholomew County, Indiana: 403 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 65 and US 31

Bartholomew County, Indiana Traffic Counts

Its busiest road, I 65, carries 43,263 vehicles a day, 8.4 times the average road. This page breaks down traffic in Bartholomew County, Indiana across 403 miles of monitored roads split into 7,495 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 Volume & Performance in Bartholomew County, Indiana

Traffic

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

vehicles per day5,172
Trucks

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

12.5%
Average travel time

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

34.3 min
Congestion ratio

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

14.1%
Drivers’ average age

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

45.9 yrs
Drivers’ average income

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

$82,661

Our data shows 5,172 vehicles per day on the average road in Bartholomew County, Indiana, and 2,494,103 vehicle-miles traveled per day (≈910 million per year) across its 403 miles of monitored roads. About 1 in 8 vehicles is a truck, in line with Indiana (12.1%).

Busier roads than 76% of counties in Indiana

Bartholomew's average daily traffic volume is 9% lower than the state average - 5,172 vehicles per day against 5,704. Network-wide, Bartholomew accounts for about 1.6% of Indiana's statewide total of vehicle-miles. Bartholomew carries more traffic than 76% of counties in Indiana.

The average trip takes 34.3 minutes, on par with the state level. Its average travel time of 34.3 minutes is longer than 57% of counties in Indiana.

The congestion ratio of 14.1% runs slightly lower than the state level (9% lower).

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Bartholomew County, Indiana

Trafficvehicles per day20,250
Trucks23.3%
Average travel time61.9 min
Congestion ratio39.7%
Drivers’ average age45.5 yrs
Drivers’ average income$85,875

A significant share of driving in Bartholomew County, Indiana, 40% of vehicle-miles, happens on highways. The average highway carries 20,250 vehicles per day, 301% more than the average non-highway road in the same area, which carries 5,048 vehicles per day.

That comes from just 11% of the monitored road miles: 46 miles in 61 segments, carrying 990,498 vehicle-miles traveled per day (≈362 million per year).

74% of counties in Indiana move less traffic on their highways.

More highway trucks than 90% of counties in Indiana

At 23.3%, highway truck share is 19% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.

By truck concentration, highways here outrank 63% of counties in Indiana. Bartholomew's highway truck count is higher than 90% of counties in Indiana, at roughly 4,724 trucks per day.

non-highway traffic icon

Non-highway Traffic in Bartholomew County, Indiana

Trafficvehicles per day5,048
Trucks5.4%
Average travel time34.1 min
Congestion ratio13.9%
Drivers’ average age45.9 yrs
Drivers’ average income$82,054

A little more than half of the driving in Bartholomew County, Indiana happens on local roads: 60% of all vehicle-miles. The average non-highway road carries 5,048 vehicles per day.

Local roads make up 89% of the monitored road miles (357 miles in 7,434 segments) but carry less than their share of travel: 1,503,605 vehicle-miles traveled per day (≈549 million per year). About 1 in 19 vehicles on non-highway roads is a truck (5.4%).

Drivers from higher-income areas than 85% of counties in Indiana

The concentration of trucks on non-highway roads is 77% lower than on highways.

Non-highway congestion (13.9%) runs slightly lower than the state level (8% lower).

85% of counties in Indiana see lower average driver income among trip origins than Bartholomew. Bartholomew's median driver age is lower than 84% of counties in Indiana.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Bartholomew County vs. Indiana Traffic Comparison

Bartholomew County's biggest difference from the Indiana average is its highway truck share, 19% above it.

MetricBartholomew CountyIndiana averageDifference
Traffic5,1725,704-9.3%
Truck % (Total Traffic)12.5%12.1%+3.5%
Truck % (Highway)23.3%19.6%+19.2%
Avg. Travel Time34.3 min33.5 min+2.4%

How Bartholomew County compares

Bartholomew County against nearby counties

Nothing in this table sets Bartholomew County sharply apart from the 4 areas nearest to it, though it has the second busiest roads of the five. Bigger and busier at once: more road than the areas around it and heavier traffic on it, which makes it the centre of gravity for travel in this part of the map.

Bartholomew 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
Bartholomew County5,17212.5%2,494,10334.3 min14.1%
Brown County, Indiana2,1387.5%277,02042.0 min11.8%
Johnson County, Indiana6,93810.0%3,584,05631.1 min19.9%
Decatur County, Indiana2,40016.6%1,118,90738.1 min10.4%
Shelby County, Indiana3,53118.7%1,573,51334.1 min10.8%
Indiana average5,70412.1%N/A33.5 min15.6%

Bartholomew County ranked within Indiana

Highway truck volume places Bartholomew County #9 of 79 in Indiana - the top quarter of the state.

Bartholomew County ranked among 92 county-level areas in Indiana (1 = highest); measures without data in every county rank a smaller field, down to 79.
MeasureBartholomew CountyIndiana rank
Traffic volume (AADT)5,172#23 of 92
Highway vehicle-miles per day990,498#21 of 79
Truck share on highways23.3%#30 of 79
Highway trucks per day4,724#9 of 79
Average travel time34.3 min#40 of 92
Average driver income$82,661#15 of 92
Average driver age45.9 yrs#77 of 92

Bartholomew County ranks #9 of 79 on highway truck volume but #77 of 92 on average driver age - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Bartholomew County, Indiana

Traffic concentrates on a few corridors: the three busiest roads average 29,605 vehicles a day, against 5,172 on the average road in Bartholomew County.

I 65 is the busiest road, at 43,263 vehicles a day, 10,091 of them trucks (23.3%). No other road comes close: US 31, in second place, carries 22,876. It also carries the most trucks.

Trips using I 65 are long: a median of 61.9 minutes against 34.3 county-wide, the mark of a through route.

Trucks make up 23.3% of traffic on I 65, against 12.5% across all roads in the county.

Few trucks use National Road: 5.8% of its traffic, under half the county's 12.5%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 65Motorway · 43,263vehicles10,091trucks · 23.3%
Road class
Motorway
Congestion ratio
39.7%
Median trip time
61.9 min
Drivers’ median age
45.5 yrs
Drivers’ average income
$85,875

Delays build on I 65: its congestion ratio of 40% over free-flow time is well above the county's 14%.

2US 31Primary road · 22,876vehicles1,360trucks · 6.0%
Road class
Primary road
Congestion ratio
27.0%
Median trip time
34.8 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$75,934

At 4.4 times the county average, US 31 draws drivers from neighborhoods averaging $75,934 in household income.

3National RoadPrimary road · 22,676vehicles1,321trucks · 5.8%
Road class
Primary road
Congestion ratio
29.4%
Median trip time
30.4 min
Drivers’ median age
45.5 yrs
Drivers’ average income
$78,594

The busiest stretch of National Road carries 4.4 times the county average; trucks are 5.8% of it, below the county-wide 12.5%.

4SR 46Primary road · 22,539vehicles979trucks · 4.3%
Road class
Primary road
Congestion ratio
35.8%
Median trip time
32.8 min
Drivers’ median age
46.6 yrs
Drivers’ average income
$90,250

On its busiest stretch, SR 46 carries 4.4 times the county average; trucks are 4.3% of it, below the county-wide 12.5%.

5Central AvenuePrimary road · 18,280vehicles784trucks · 4.3%
Road class
Primary road
Congestion ratio
58.8%
Median trip time
36.1 min
Drivers’ median age
46.1 yrs
Drivers’ average income
$80,329

Travel on Central Avenue's busiest stretch runs 59% over free-flow time, against 14% across the county, so expect slower peak hours.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 65Motorway · #1 by traffic43,263vehicles10,091trucks · 23.3%
2US 31Primary road · #2 by traffic22,876vehicles1,360trucks · 6.0%
3National RoadPrimary road · #3 by traffic22,676vehicles1,321trucks · 5.8%
4SR 46Primary road · #4 by traffic22,539vehicles979trucks · 4.3%
5Jonathan Moore PikePrimary road · 16,451vehicles951trucks · 5.8%
Road class
Primary road
Congestion ratio
27.6%
Median trip time
38.0 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$89,253

Jonathan Moore Pike peaks at 16,451 vehicles a day, 3.2 times the county average; trucks are 5.8% of it, below the county-wide 12.5%.

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

BartholomewDepartment 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 Bartholomew County

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

Need segment-level traffic data?

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