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Traffic heat map of Jennings County, Indiana: 100 miles of roads shaded from blue (light) to red (heavy traffic), busiest on State Street and SR 7

Jennings County, Indiana Traffic Counts

How busy are the roads of Jennings County, Indiana? We measure 100 road miles, divided into 1,680 segments, with multi-sourced, cross-verified mobile and sensor data. Its busiest road, State Street, carries 17,254 vehicles a day, 3.1 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 Jennings County, Indiana

Traffic

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

vehicles per day5,572
Trucks

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

8.3%
Average travel time

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

34.8 min
Congestion ratio

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

16.8%
Drivers’ average age

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

46.7 yrs
Drivers’ average income

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

$68,996

A typical monitored road in Jennings County, Indiana sees 5,572 vehicles per day, while its 100 miles of monitored roads together handle 450,870 vehicle-miles traveled per day (≈165 million per year). Trucks are a smaller part of the mix than across Indiana: 8.3% against 12.1%.

Busier roads than 78% of counties in Indiana

At 5,572 vehicles per day, the average road in Jennings tracks closely with the state average of 5,704 vehicles per day. Across the whole network, that travel is about 0.3% of Indiana's statewide total. 78% of counties in Indiana see less traffic than Jennings's 5,572 vehicles per day.

At 34.8 minutes, the average travel time matches the state level closely. On travel time, Jennings runs longer than 64% of counties in Indiana.

The congestion ratio of 16.8% runs slightly higher than the state level (8% higher).

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Jennings County vs. Indiana Traffic Comparison

The truck share sets Jennings County apart: 32% below the Indiana average. The other measures stay close to the average.

MetricJennings CountyIndiana averageDifference
Traffic5,5725,704-2.3%
Truck % (Total Traffic)8.3%12.1%-31.6%
Avg. Travel Time34.8 min33.5 min+3.6%

How Jennings County compares

Jennings County moves the least traffic of its nearby counties

Against the 4 nearest areas, Jennings County moves 39.7% of the total daily travel; it has the second busiest roads of the five.

Jennings 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
Jennings County5,5728.3%450,87034.8 min16.8%
Jefferson County, Indiana4,6457.0%548,20231.9 min11.8%
Ripley County, Indiana3,69914.2%800,14434.3 min10.4%
Scott County, Indiana5,75416.5%700,73732.5 min16.7%
Bartholomew County, Indiana5,17212.5%2,494,10334.3 min14.1%
Indiana average5,70412.1%N/A33.5 min15.6%

Jennings County ranked within Indiana

Jennings County sits in the top quarter of the Indiana field on average daily traffic volume, at #21 of 92.

Jennings County ranked among 92 county-level areas in Indiana (1 = highest).
MeasureJennings CountyIndiana rank
Traffic volume (AADT)5,572#21 of 92
Average travel time34.8 min#34 of 92
Average driver income$68,996#61 of 92
Average driver age46.7 yrs#68 of 92

Busiest roads in Jennings County, Indiana

The three busiest roads in Jennings County average 12,911 vehicles a day, 2.3 times the county average of 5,572 across all its monitored roads.

State Street leads with 17,254 vehicles a day, 1,141 of them trucks (6.6%). No other road comes close: SR 7, in second place, carries 10,876. It also carries the most trucks.

US 50 carries longer journeys than most roads here, with a median trip of 45.8 minutes against 34.8 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1State StreetPrimary road · 17,254vehicles1,141trucks · 6.6%
Road class
Primary road
Congestion ratio
21.1%
Median trip time
30.1 min
Drivers’ median age
46.4 yrs
Drivers’ average income
$67,150

The busiest stretch of State Street carries 3.1 times the county average; trucks are 6.6% of it, below the county-wide 8.3%.

2SR 7Primary road · 10,876vehicles774trucks · 7.1%
Road class
Primary road
Congestion ratio
26.6%
Median trip time
35.9 min
Drivers’ median age
46.0 yrs
Drivers’ average income
$67,192

Delays build on SR 7: its congestion ratio of 27% over free-flow time is well above the county's 17%.

3US 50Primary road · 10,604vehicles985trucks · 9.3%
Road class
Primary road
Congestion ratio
22.6%
Median trip time
45.8 min
Drivers’ median age
47.1 yrs
Drivers’ average income
$75,327

US 50 carries 90% more than the county average at its busiest, 985 of them trucks (9.3%, above the county-wide 8.3%).

4SR 3Primary road · 9,021vehicles638trucks · 7.1%
Road class
Primary road
Congestion ratio
21.7%
Median trip time
34.7 min
Drivers’ median age
47.7 yrs
Drivers’ average income
$67,968

SR 3 carries 62% more than the county average on its busiest stretch, where the median trip lasts 34.7 minutes.

5State Roads 3 & 7Primary road · 8,522vehicles572trucks · 6.7%
Road class
Primary road
Congestion ratio
35.4%
Median trip time
32.7 min
Drivers’ median age
47.3 yrs
Drivers’ average income
$68,800

Travel on State Roads 3 & 7's busiest stretch runs 35% over free-flow time, against 17% across the county, so expect slower peak hours.

Ranked by trucks per day

Cars and light vehiclesTrucks
1State StreetPrimary road · #1 by traffic17,254vehicles1,141trucks · 6.6%
2US 50Primary road · #3 by traffic10,604vehicles985trucks · 9.3%
3SR 7Primary road · #2 by traffic10,876vehicles774trucks · 7.1%
4SR 3Primary road · #4 by traffic9,021vehicles638trucks · 7.1%
5State Roads 3 & 7Primary road · #5 by traffic8,522vehicles572trucks · 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

JenningsDepartment 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 Jennings County

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

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