
Total Traffic Volume & Performance in Union County, Ohio
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,376 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 10.6% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 30.3 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. | 10.4% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 45.1 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $107,419 |
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Our data shows 3,376 vehicles per day on the average road in Union County, Ohio, and 1,998,335 vehicle-miles traveled per day (≈729 million per year) across its 450 miles of monitored roads. Trucks are 10.6% of traffic, close to the 9.9% across Ohio.
Shorter trips than 90% of counties in Ohio
Union sees 42% lower average daily traffic volume than the state average (3,376 vehicles per day against 5,773), suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. Across the whole network, that travel is about 0.8% of Ohio's statewide total. By volume, Union's 3,376 vehicles per day outpaces 56% of counties in Ohio.
Journey times run 8% lower than the state level, at 30.3 minutes on average. Its average travel time of 30.3 minutes is shorter than 90% of counties in Ohio.
At 37% lower than the state level, the 10.4% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Union County, Ohio
| Traffic | vehicles per day9,353 |
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| Trucks | 13.5% |
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| Average travel time | 38.2 min |
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| Congestion ratio | 20.8% |
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| Drivers’ average age | 44.9 yrs |
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| Drivers’ average income | $107,204 |
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Highways carry more than half of all travel in Union County, Ohio (56% of vehicle-miles). The average highway carries 9,353 vehicles per day, 223% more than the average non-highway road in the same area, which carries 2,898 vehicles per day.
Yet highways are only 18% of the road network, 79 miles in 587 segments, so each mile of them is 3.2 times as busy as the average road mile.
That is more highway travel volume than 57% of counties in Ohio.
Lower highway truck share than 65% of counties in Ohio
Highway truck concentration here runs 9% lower than the state average, at 13.5%. The highway traffic mix is typical for Ohio: neither freight- nor commuter-dominated.
By truck concentration, highways here trail 65% of counties in Ohio. Union's highway truck count is lower than 51% of counties in Ohio, at roughly 1,265 trucks per day.

Non-highway Traffic in Union County, Ohio
| Traffic | vehicles per day2,898 |
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| Trucks | 6.9% |
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| Average travel time | 29.7 min |
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| Congestion ratio | 9.5% |
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| Drivers’ average age | 45.3 yrs |
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| Drivers’ average income | $107,619 |
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A significant share of driving in Union County, Ohio, 44% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 2,898 vehicles per day.
Spread over 371 miles and 7,339 segments, 82% of the road network, local roads carry a lighter load per mile: 887,237 vehicle-miles traveled per day (≈324 million per year). About 1 in 15 vehicles on non-highway roads is a truck (6.9%).
Drivers from higher-income areas than 98% of counties in Ohio
Non-highway roads carry a truck concentration that's 49% lower than the highway network.
At 40% lower than the state level, the non-highway congestion ratio of 9.5% signals easier movement on local roads.
Union's average driver income is higher than 98% of counties in Ohio. The driver population here skews younger than 95% of counties in Ohio.