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Traffic heat map of Putnam County, Indiana: 209 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 70 and Dwight D Eisenhower Highway

Putnam County, Indiana Traffic Counts

TrafficZoom tracks traffic on 209 road miles in Putnam County, Indiana, divided into 2,168 segments averaging 508 ft. About 1 in 5 vehicles here is a truck, against 1 in 8 across Indiana. Built from cross-verified mobile and road-sensor data, these counts help you size up a retail site, plan logistics routes or assess infrastructure needs.
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 Putnam County, Indiana

Traffic

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

vehicles per day4,678
Trucks

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

20.0%
Average travel time

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

37.1 min
Congestion ratio

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

13.0%
Drivers’ average age

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

47.1 yrs
Drivers’ average income

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

$78,033

Our data shows 4,678 vehicles per day on the average road in Putnam County, Indiana, and 1,321,639 vehicle-miles traveled per day (≈482 million per year) across its 209 miles of monitored roads. Freight weighs heavily here: trucks are 20.0% of traffic, against 12.1% across Indiana.

Longer trips than 87% of counties in Indiana

At 4,678 vehicles per day, the average monitored road in Putnam carries 18% less traffic than the state average of 5,704, suggesting less demand on each road - a factor worth weighing in site selection and logistics planning. Across the whole network, that travel is about 0.8% of Indiana's statewide total. Putnam carries more traffic than 67% of counties in Indiana.

Journey times run 11% higher than the state level, at 37.1 minutes on average. On travel time, Putnam runs longer than 87% of counties in Indiana.

At 16% lower than the state level, the 13.0% congestion ratio signals smoother traffic flow - relevant for traffic control and delivery planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Putnam County, Indiana

Trafficvehicles per day16,223
Trucks28.7%
Average travel time61.8 min
Congestion ratio34.8%
Drivers’ average age45.6 yrs
Drivers’ average income$77,754

Highways carry more than half of all travel in Putnam County, Indiana (57% of vehicle-miles). The average highway carries 16,223 vehicles per day, 277% more than the average non-highway road in the same area, which carries 4,304 vehicles per day.

With 21% of the road miles (44 miles in 68 segments), highways punch above their length, carrying 758,471 vehicle-miles traveled per day (≈277 million per year).

That is more highway travel volume than 58% of counties in Indiana.

More highway trucks than 88% of counties in Indiana

At 28.7%, highway truck share is 46% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.

85% of counties in Indiana see a lower highway truck share than Putnam's 28.7%. 88% of counties in Indiana see fewer highway trucks per day than Putnam's roughly 4,649.

non-highway traffic icon

Non-highway Traffic in Putnam County, Indiana

Trafficvehicles per day4,304
Trucks8.4%
Average travel time36.3 min
Congestion ratio12.3%
Drivers’ average age47.8 yrs
Drivers’ average income$78,134

Local roads carry a significant share of travel in Putnam County, Indiana: 43% of all vehicle-miles. The average non-highway road carries 4,304 vehicles per day.

Local roads make up 79% of the monitored road miles (164 miles in 2,100 segments) but carry less than their share of travel: 563,168 vehicle-miles traveled per day (≈206 million per year). The truck share on non-highway roads is 8.4%.

Drivers from higher-income areas than 70% of counties in Indiana

Compared to highways, non-highway routes see 71% fewer trucks by share.

The non-highway congestion ratio of 12.3% is 19% lower than the state level, suggesting more efficient local mobility than the state average.

70% of counties in Indiana see lower average driver income among trip origins than Putnam. The driver population here skews younger than 67% of counties in Indiana.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Putnam County vs. Indiana Traffic Comparison

Putnam County's biggest difference from the Indiana average is its truck share, 65% above it. Its highway truck share is also 46% above.

MetricPutnam CountyIndiana averageDifference
Traffic4,6785,704-18.0%
Truck % (Total Traffic)20.0%12.1%+65.5%
Truck % (Highway)28.7%19.6%+46.4%
Avg. Travel Time37.1 min33.5 min+10.6%

How Putnam County compares

Putnam County has a higher truck share than any nearby county

Against the 4 nearest areas, Putnam County runs 7.7 percentage points more truck traffic; it has the second busiest roads of the five. Traffic volume here matches the areas around it, but more of that traffic is trucks - a difference in what routes through, not in how much.

Putnam 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
Putnam County4,67820.0%1,321,63937.1 min13.0%
Parke County, Indiana2,1828.4%271,93335.7 min9.2%
Hendricks County, Indiana6,88410.6%3,649,73432.7 min17.5%
Montgomery County, Indiana3,99517.0%1,037,19335.4 min10.3%
Morgan County, Indiana3,37913.2%1,947,28635.7 min10.2%
Indiana average5,70412.1%N/A33.5 min15.6%

Putnam County ranked within Indiana

Putnam County sits in the top quarter of the Indiana field on highway truck volume, at #10 of 79.

Putnam County ranked among 92 county-level areas in Indiana (1 = highest); measures without data in every county rank a smaller field, down to 79.
MeasurePutnam CountyIndiana rank
Traffic volume (AADT)4,678#31 of 92
Highway vehicle-miles per day758,471#34 of 79
Truck share on highways28.7%#13 of 79
Highway trucks per day4,649#10 of 79
Average travel time37.1 min#13 of 92
Average driver income$78,033#28 of 92
Average driver age47.1 yrs#61 of 92

Busiest roads in Putnam County, Indiana

On their busiest stretches, the three busiest roads in Putnam County carry 16,153 vehicles a day on average, 3.5 times the typical road in the county (4,678).

I 70 leads with 19,628 vehicles a day, 5,873 of them trucks (29.9%). It tops the truck ranking too, with the most trucks.

Trips using Dwight D Eisenhower Highway are long: a median of 67.0 minutes against 37.1 county-wide, the mark of a through route.

Few trucks use S Main St: 6.0% of its traffic, under half the county's 20.0%.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 70Motorway · 19,628vehicles5,873trucks · 29.9%
Road class
Motorway
Congestion ratio
43.4%
Median trip time
57.9 min
Drivers’ median age
46.2 yrs
Drivers’ average income
$73,948

Delays build on I 70: its congestion ratio of 43% over free-flow time is well above the county's 13%.

2Dwight D Eisenhower HighwayMotorway · 15,439vehicles4,206trucks · 27.2%
Road class
Motorway
Congestion ratio
30.0%
Median trip time
67.0 min
Drivers’ median age
44.8 yrs
Drivers’ average income
$84,431

Travel on Dwight D Eisenhower Highway's busiest stretch runs 30% over free-flow time, against 13% across the county, so expect slower peak hours.

3S Main StPrimary road · 13,391vehicles806trucks · 6.0%
Road class
Primary road
Median trip time
34.4 min
Drivers’ median age
51.2 yrs
Drivers’ average income
$64,615

At 2.9 times the county average, S Main St draws drivers from neighborhoods averaging $64,615 in household income.

4Main StreetPrimary road · 10,621vehicles697trucks · 6.6%
Road class
Primary road
Congestion ratio
26.4%
Median trip time
36.2 min
Drivers’ median age
49.3 yrs
Drivers’ average income
$69,372

The busiest stretch of Main Street carries 2.3 times the county average; trucks are 6.6% of it, below the county-wide 20.0%.

5Bloomington StreetPrimary road · 9,359vehicles573trucks · 6.1%
Road class
Primary road
Congestion ratio
22.2%
Median trip time
35.6 min
Drivers’ median age
47.9 yrs
Drivers’ average income
$76,351

On its busiest stretch, Bloomington Street carries 2.0 times the county average; trucks are 6.1% of it, below the county-wide 20.0%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 70Motorway · #1 by traffic19,628vehicles5,873trucks · 29.9%
2Dwight D Eisenhower HighwayMotorway · #2 by traffic15,439vehicles4,206trucks · 27.2%
3S Main StPrimary road · #3 by traffic13,391vehicles806trucks · 6.0%
4US 231Primary road · 8,594vehicles713trucks · 8.3%
Road class
Primary road
Congestion ratio
18.8%
Median trip time
38.9 min
Drivers’ median age
47.5 yrs
Drivers’ average income
$77,692

US 231 is busy by local standards, at 84% more than the county average on its busiest stretch; trucks are 8.3% of it, below the county-wide 20.0%.

5Main StreetPrimary road · #4 by traffic10,621vehicles697trucks · 6.6%
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

PutnamDepartment 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 Putnam County

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

Need segment-level traffic data?

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