
Total Traffic Volume & Performance in Iron County, Michigan
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,292 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 11.2% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 34.5 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. | 7.9% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 58.2 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $51,568 |
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The average monitored road in Iron County, Michigan carries 2,292 vehicles per day. Across its 118 miles of monitored roads, that adds up to 189,450 vehicle-miles traveled per day (≈69.1 million per year). At 11.2%, the truck share runs above the 7.7% across Michigan: about 1 in 9 vehicles.
Quieter roads than 88% of counties in Michigan
Iron's average daily traffic volume is 70% lower than the state average - 2,292 vehicles per day against 7,697 - suggesting less traffic load per road - very light roads: easy truck access, but little passing trade for roadside retail. Across the whole network, that travel is less than 0.1% of Michigan's statewide total. By volume, Iron's 2,292 vehicles per day trails 88% of counties in Michigan.
The average trip takes 34.5 minutes, on par with the state level. On travel time, Iron runs longer than 67% of counties in Michigan.
At 57% lower than the state level, the 7.9% congestion ratio signals smoother traffic flow - free-flowing roads make scheduled deliveries highly predictable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Iron County, Michigan
| Traffic | vehicles per day2,974 |
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| Trucks | 12.0% |
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| Average travel time | 35.3 min |
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| Congestion ratio | 8.4% |
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| Drivers’ average age | 58.4 yrs |
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| Drivers’ average income | $51,248 |
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Highways carry most of the traffic in Iron County, Michigan: 77% of all vehicle-miles. The average highway carries 2,974 vehicles per day, 106% more than the average non-highway road in the same area, which carries 1,443 vehicles per day.
Highways make up 60% of the monitored road miles (70 miles, 576 segments), so they carry more than their share: 145,395 vehicle-miles traveled per day (≈53.1 million per year).
Fewer highway trucks than 93% of counties in Michigan
At 12.0%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Michigan: neither freight- nor commuter-dominated.
By truck concentration, highways here outrank 68% of counties in Michigan. Iron's highway truck count is lower than 93% of counties in Michigan, at roughly 356 trucks per day.

Non-highway Traffic in Iron County, Michigan
| Traffic | vehicles per day1,443 |
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| Trucks | 8.6% |
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| Average travel time | 33.4 min |
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| Congestion ratio | 7.4% |
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| Drivers’ average age | 57.6 yrs |
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| Drivers’ average income | $52,297 |
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At 23% of vehicle-miles, local roads carry a smaller share of the traffic in Iron County, Michigan than highways. A typical local road sees 1,443 vehicles per day.
Spread over 47 miles and 463 segments, 40% of the road network, local roads carry a lighter load per mile: 44,055 vehicle-miles traveled per day (≈16.1 million per year). The truck share on non-highway roads is 8.6%.
Drivers from lower-income areas than 93% of counties in Michigan
The concentration of trucks on non-highway roads is 28% lower than on highways.
The non-highway congestion ratio of 7.4% is 60% lower than the state level, suggesting more efficient local mobility than the state average.
Iron's average driver income is lower than 93% of counties in Michigan. The driver population here skews older than 93% of counties in Michigan.