
Total Traffic Volume & Performance in Hamilton County, Indiana
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day7,392 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 6.0% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 29.9 min |
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Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 20.8% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 44.4 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $120,373 |
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The average monitored road in Hamilton County, Indiana carries 7,392 vehicles per day. Across its 842 miles of monitored roads, that adds up to 7,300,635 vehicle-miles traveled per day (≈2.7 billion per year). Traffic here is mostly passenger cars: only 6.0% trucks, against 12.1% across Indiana.
Busier roads than 97% of counties in Indiana
Hamilton's average daily traffic volume is 30% higher than the state average - 7,392 vehicles per day against 5,704 - suggesting more traffic load per road - more exposure for roadside businesses, and more competition for road space. Network-wide, Hamilton accounts for about 4.6% of Indiana's statewide total of vehicle-miles. By volume, Hamilton's 7,392 vehicles per day outpaces 97% of counties in Indiana.
At 29.9 minutes, the average travel time is 11% lower than the state level. Its average travel time of 29.9 minutes is shorter than 93% of counties in Indiana.
At 33% higher than the state level, the 20.8% congestion ratio signals more pronounced congestion - a factor for delivery windows and signal timing.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Hamilton County, Indiana
| Traffic | vehicles per day26,892 |
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| Trucks | 9.2% |
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| Average travel time | 38.2 min |
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| Congestion ratio | 47.6% |
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| Drivers’ average age | 44.4 yrs |
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| Drivers’ average income | $107,668 |
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Highways carry a significant share of travel in Hamilton County, Indiana: 41% of all vehicle-miles. The average highway carries 26,892 vehicles per day, 287% more than the average non-highway road in the same area, which carries 6,952 vehicles per day.
That comes from just 12% of the monitored road miles: 104 miles in 423 segments, carrying 2,997,032 vehicle-miles traveled per day (≈1.1 billion per year).
By highway travel volume, that ranks Hamilton in the top 3 counties in Indiana.
Lower highway truck share than 99% of counties in Indiana
Highway truck concentration here runs 53% lower than the state average, at 9.2%. Highways here carry mainly commuter and local trips, with little through freight.
By truck concentration, highways here trail 99% of counties in Indiana. 56% of counties in Indiana see fewer highway trucks per day than Hamilton's roughly 2,463.

Non-highway Traffic in Hamilton County, Indiana
| Traffic | vehicles per day6,952 |
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| Trucks | 3.8% |
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| Average travel time | 29.8 min |
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| Congestion ratio | 20.2% |
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| Drivers’ average age | 44.4 yrs |
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| Drivers’ average income | $125,841 |
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Local roads carry more than half of all travel in Hamilton County, Indiana (59% of vehicle-miles). On the average non-highway road, that comes to 6,952 vehicles per day.
Local roads make up 88% of the monitored road miles (738 miles in 18,736 segments) but carry less than their share of travel: 4,303,603 vehicle-miles traveled per day (≈1.6 billion per year). Trucks make up 3.8% of non-highway traffic, about 1 in 26 vehicles.
The highest driver income of any county in Indiana
Non-highway roads carry a truck concentration that's 58% lower than the highway network.
Non-highway congestion (20.2%) runs 33% higher than the state average, pointing to slower local traffic flow.
At $120,373, the average driver income for trips originating here is the highest in Indiana. The driver population here skews younger than 93% of counties in Indiana.