
Total Traffic Volume & Performance in Johnson County, Missouri
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,526 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 8.1% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 31.7 min |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 41.3 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $72,131 |
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The average monitored road in Johnson County, Missouri carries 2,526 vehicles per day. Across its 439 miles of monitored roads, that adds up to 1,147,606 vehicle-miles traveled per day (≈419 million per year). Trucks are a smaller part of the mix than across Missouri: 8.1% against 9.8%.
Traffic 55% below the Missouri average
Johnson's average daily traffic volume is 55% lower than the state average - 2,526 vehicles per day against 5,631 - 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 Missouri's statewide total of vehicle-miles. 59% of counties in Missouri see less traffic than Johnson's 2,526 vehicles per day.
The average trip takes 31.7 minutes, on par with the state level. Its average travel time of 31.7 minutes is shorter than 59% of counties in Missouri.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Johnson County, Missouri
| Traffic | vehicles per day6,171 |
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| Trucks | 9.3% |
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| Average travel time | 44.3 min |
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| Drivers’ average age | 43.2 yrs |
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| Drivers’ average income | $74,487 |
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A little more than half of the driving in Johnson County, Missouri happens on highways: 60% of all vehicle-miles. The average highway carries 6,171 vehicles per day, 181% more than the average non-highway road in the same area, which carries 2,192 vehicles per day.
Highways make up 24% of the monitored road miles (104 miles, 535 segments), so they carry more than their share: 688,432 vehicle-miles traveled per day (≈251 million per year).
That is more highway travel volume than 68% of counties in Missouri.
Lower highway truck share than 93% of counties in Missouri
At 9.3%, highway truck share is 31% lower than the state average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
93% of counties in Missouri see a higher highway truck share than Johnson's 9.3%. Johnson's highway truck count is lower than 77% of counties in Missouri, at roughly 576 trucks per day.

Non-highway Traffic in Johnson County, Missouri
| Traffic | vehicles per day2,192 |
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| Trucks | 6.2% |
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| Average travel time | 30.6 min |
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| Drivers’ average age | 39.4 yrs |
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| Drivers’ average income | $69,785 |
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A significant share of driving in Johnson County, Missouri, 40% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 2,192 vehicles per day.
Spread over 335 miles and 5,841 segments, 76% of the road network, local roads carry a lighter load per mile: 459,174 vehicle-miles traveled per day (≈168 million per year). The truck share on non-highway roads is 6.2%.
Younger drivers than 98% of counties in Missouri
The concentration of trucks on non-highway roads is 34% lower than on highways.
83% of counties in Missouri see lower average driver income among trip origins than Johnson. Johnson's median driver age is lower than 98% of counties in Missouri.