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TrafficThe average number of vehicles that travel each day over any road in the road network. | vehicles per day2,400 |
|---|---|
TrucksThe percentage of the total traffic volume composed of heavy vehicles. | 16.6% |
Average travel timeThe average time of travel averaged among all vehicles traveling on the road network. | 38.1 min |
Congestion ratioThe rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 10.4% |
Drivers’ average ageAverage age of residents in the geographic areas where the vehicle trips originated. | 48.3 yrs |
Drivers’ average incomeAverage income of residents in the geographic areas where the vehicle trips originated. | $78,092 |
Our data shows 2,400 vehicles per day on the average road in Decatur County, Indiana, and 1,118,907 vehicle-miles traveled per day (≈408 million per year) across its 338 miles of monitored roads. At 16.6%, the truck share runs above the 12.1% across Indiana: about 1 in 6 vehicles.
Decatur's average daily traffic volume is 58% lower than the state average - 2,400 vehicles per day against 5,704 - suggesting less traffic load per road - quiet roads that suit freight movement more than drive-by retail. In total volume terms, its road network carries about 0.7% of Indiana's statewide total of vehicle-miles. By volume, Decatur's 2,400 vehicles per day trails 85% of counties in Indiana.
The average trip takes 38.1 minutes, 14% higher than the state level. 93% of counties in Indiana have a shorter average travel time than Decatur's 38.1 minutes.
Congestion runs 33% lower than the state level, at a ratio of 10.4%, which means smoother traffic flow - fewer delays make delivery windows more reliable.
| Traffic | vehicles per day11,438 |
|---|---|
| Trucks | 25.2% |
| Average travel time | 68.2 min |
| Congestion ratio | 24.0% |
| Drivers’ average age | 47.7 yrs |
| Drivers’ average income | $80,469 |
Travel in Decatur County, Indiana splits roughly evenly, with about half of it (52% of vehicle-miles) on highways. The average highway carries 11,438 vehicles per day, 405% more than the average non-highway road in the same area, which carries 2,263 vehicles per day.
That comes from just 14% of the monitored road miles: 46 miles in 58 segments, carrying 576,600 vehicle-miles traveled per day (≈210 million per year).
50% of counties in Indiana move less traffic on their highways.
At 25.2%, highway truck share is 29% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.
73% of counties in Indiana see a lower highway truck share than Decatur's 25.2%. By raw truck volume, Decatur carries more highway trucks than 64% of counties in Indiana.
| Traffic | vehicles per day2,263 |
|---|---|
| Trucks | 7.6% |
| Average travel time | 37.7 min |
| Congestion ratio | 10.2% |
| Drivers’ average age | 48.5 yrs |
| Drivers’ average income | $77,434 |
Travel in Decatur County, Indiana splits roughly evenly, with about half of it (48% of vehicle-miles) on local roads. A typical local road sees 2,263 vehicles per day.
Spread over 292 miles and 3,811 segments, 86% of the road network, local roads carry a lighter load per mile: 542,307 vehicle-miles traveled per day (≈198 million per year). About 1 in 13 vehicles on non-highway roads is a truck (7.6%).
The concentration of trucks on non-highway roads is 70% lower than on highways.
Non-highway congestion (10.2%) runs 33% lower than the state average, pointing to smoother local traffic flow.
Trip origins here have higher average income than 71% of counties in Indiana. The driver population here skews older than 54% of counties in Indiana.
Of the four measures, average daily traffic per road differs most: Decatur County runs 58% below the Indiana average. Its truck share, by contrast, is 38% above.
| Metric | Decatur County | Indiana average | Difference |
|---|---|---|---|
| Traffic | 2,400 | 5,704 | -57.9% |
| Truck % (Total Traffic) | 16.6% | 12.1% | +37.6% |
| Truck % (Highway) | 25.2% | 19.6% | +28.7% |
| Avg. Travel Time | 38.1 min | 33.5 min | +13.7% |
Against the 4 nearest areas, Decatur County carries 36.8% less traffic on a typical road; it has the quietest roads of the five.
| Area | Average daily traffic | Truck share | Daily vehicle-miles | Average travel time | Congestion ratio |
|---|---|---|---|---|---|
| Decatur County | 2,400 | 16.6% | 1,118,907 | 38.1 min | 10.4% |
| Ripley County, Indiana | 3,699 | 14.2% | 800,144 | 34.3 min | 10.4% |
| Rush County, Indiana | 2,789 | 10.4% | 376,242 | 39.4 min | 10.1% |
| Bartholomew County, Indiana | 5,172 | 12.5% | 2,494,103 | 34.3 min | 14.1% |
| Shelby County, Indiana | 3,531 | 18.7% | 1,573,513 | 34.1 min | 10.8% |
| Indiana average | 5,704 | 12.1% | N/A | 33.5 min | 15.6% |
Decatur County sits in the top quarter of the Indiana field on average travel time, at #7 of 92.
| Measure | Decatur County | Indiana rank |
|---|---|---|
| Traffic volume (AADT) | 2,400 | #78 of 92 |
| Highway vehicle-miles per day | 576,600 | #40 of 79 |
| Truck share on highways | 25.2% | #22 of 79 |
| Highway trucks per day | 2,882 | #29 of 79 |
| Average travel time | 38.1 min | #7 of 92 |
| Average driver income | $78,092 | #27 of 92 |
| Average driver age | 48.3 yrs | #43 of 92 |
The two ends of this table sit far apart: #7 of 92 on average travel time, against #78 of 92 on average daily traffic volume.
Traffic concentrates on a few corridors: the three busiest roads average 16,030 vehicles a day, against 2,400 on the average road in Decatur County.
I 74 is the busiest road, at 25,422 vehicles a day, 6,866 of them trucks (27.0%). No other road comes close: Lincoln Street, in second place, carries 12,079. It also carries the most trucks.
I 74 carries longer journeys than most roads here, with a median trip of 67.2 minutes against 38.1 county-wide.
Few trucks use Lincoln Street: 3.3% of its traffic, under half the county's 16.6%.
Freight stands out on I 74: trucks are 27.0% of the traffic there, against 16.6% county-wide.
Travel on I 74's busiest stretch runs 26% over free-flow time, against 10% across the county, so expect slower peak hours.
Lincoln Street is one of the more congested roads here: trips take 26% longer than at free-flow speed, against 10% county-wide.
The busiest stretch of Main Street carries 4.4 times the county average; trucks are 8.7% of it, below the county-wide 16.6%.
On its busiest stretch, US 421 carries 3.7 times the county average; trucks are 11.3% of it, below the county-wide 16.6%.
SR 3 peaks at 8,742 vehicles a day, 3.6 times the county average; trucks are 8.4% of it, below the county-wide 16.6%.
Michigan Ave carries 3.1 times the county average at its busiest, 738 of them trucks (9.8%, below the county-wide 16.6%).
The average monitored road in Decatur carries 2,400 vehicles per day, 58% less than the Indiana average of 5,704.
Decatur carries less traffic than 85% of counties in Indiana, averaging 2,400 vehicles per day.
Approximately 53% of highway traffic and 13% of non-highway traffic consists of vehicles whose trip originates outside Decatur County, Indiana. A sizeable share of highway traffic comes from outside, mixed with local trips on the same roads.
Drivers on Decatur roads have a median age of 48 years, older than the Indiana average of 46, and the median household income of the neighborhoods trips originate from averages $78,092, in line with the Indiana average.
Trucks make up about 16.6% of all traffic in Decatur County, Indiana, rising to 25.2% on highways, where long-haul freight concentrates.
The average trip in Decatur takes 38.1 minutes, 14% longer than the Indiana average of 33.5 minutes, delays at signals and congestion included.
Weekday traffic has two busy windows: AM peak 7:00 AM–8:00 AM and PM peak 3:00 PM–6:00 PM - about 73% above the daily average.
I 74 carries the most, 25,422 vehicles per day on its busiest stretch, followed by Lincoln Street (12,079), Main Street (10,589), US 421 (8,792), SR 3 (8,742). Figures are AADT, both directions combined.
I 74, with about 6,866 trucks per day on its busiest stretch, 27.0% of its 25,422 vehicles.
About 25,422 vehicles per day in both directions on its busiest stretch, including 6,866 trucks (27.0%). Traffic is lower on its quieter stretches; TrafficZoom shows the count for every segment.

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Historical traffic pattern databases
The same traffic breakdown for the areas closest to Decatur County, Indiana.
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