
Total Traffic Volume & Performance in Lake County, Indiana
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day9,031 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 10.7% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 34.8 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. | 18.8% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.5 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $85,128 |
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Our data shows 9,031 vehicles per day on the average road in Lake County, Indiana, and 10,261,244 vehicle-miles traveled per day (≈3.7 billion per year) across its 897 miles of monitored roads. About 1 in 9 vehicles is a truck, in line with Indiana (12.1%).
Busier roads than 99% of counties in Indiana
Lake sees 58% higher average daily traffic volume than the state average (9,031 vehicles per day against 5,704), suggesting more demand on each road - heavy exposure for roadside retail, and tight road space for deliveries. Across the whole network, that travel is about 6.4% of Indiana's statewide total. By volume, Lake's 9,031 vehicles per day outpaces 99% of counties in Indiana.
At 34.8 minutes, the average travel time matches the state level closely. Its average travel time of 34.8 minutes is longer than 68% of counties in Indiana.
The congestion ratio of 18.8% is 21% higher, pointing to more pronounced congestion than the state level - crucial for traffic control improvement and logistics planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Lake County, Indiana
| Traffic | vehicles per day23,451 |
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| Trucks | 15.8% |
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| Average travel time | 45.0 min |
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| Congestion ratio | 40.8% |
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| Drivers’ average age | 47.6 yrs |
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| Drivers’ average income | $85,977 |
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Travel in Lake County, Indiana splits roughly evenly, with about half of it (52% of vehicle-miles) on highways. The average highway carries 23,451 vehicles per day, 189% more than the average non-highway road in the same area, which carries 8,107 vehicles per day.
Highways make up 23% of the monitored road miles (208 miles, 1,664 segments), so they carry more than their share: 5,381,983 vehicle-miles traveled per day (≈2.0 billion per year).
That puts Lake among the top 3 counties in Indiana for highway travel volume.
More highway trucks than 77% of counties in Indiana
Highway truck concentration here runs 19% lower than the state average, at 15.8%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
Lake's highway truck share (15.8%) is lower than 76% of counties in Indiana. Lake's highway truck count is higher than 77% of counties in Indiana, at roughly 3,698 trucks per day.

Non-highway Traffic in Lake County, Indiana
| Traffic | vehicles per day8,107 |
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| Trucks | 5.1% |
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| Average travel time | 34.1 min |
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| Congestion ratio | 17.4% |
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| Drivers’ average age | 47.4 yrs |
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| Drivers’ average income | $84,712 |
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Travel in Lake County, Indiana splits roughly evenly, with about half of it (48% of vehicle-miles) on local roads. A typical local road sees 8,107 vehicles per day.
Spread over 689 miles and 25,965 segments, 77% of the road network, local roads carry a lighter load per mile: 4,879,261 vehicle-miles traveled per day (≈1.8 billion per year). Trucks make up 5.1% of non-highway traffic, about 1 in 20 vehicles.
Drivers from higher-income areas than 90% of counties in Indiana
The concentration of trucks on non-highway roads is 68% lower than on highways.
At 15% higher than the state level, the non-highway congestion ratio of 17.4% signals more friction on local roads.
Lake's average driver income is higher than 90% of counties in Indiana. 60% of counties in Indiana have an older driver population than Lake.