
Total Traffic Volume & Performance in McNairy County, Tennessee
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,811 |
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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. | 31.5 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. | 6.2% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 49.3 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $51,276 |
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Our data shows 2,811 vehicles per day on the average road in McNairy County, Tennessee, and 716,624 vehicle-miles traveled per day (≈262 million per year) across its 346 miles of monitored roads. About 1 in 9 vehicles is a truck, in line with Tennessee (11.3%).
Congestion 62% below the Tennessee average
At 2,811 vehicles per day, the average monitored road in McNairy carries 61% less traffic than the state average of 7,251, suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Across the whole network, that travel is about 0.4% of Tennessee's statewide total. McNairy carries less traffic than 80% of counties in Tennessee.
Journey times here (31.5 minutes on average) closely track the state level. On travel time, McNairy runs shorter than 73% of counties in Tennessee.
The congestion ratio of 6.2% is 62% lower, pointing to smoother traffic flow than the state level - delays are rare enough to plan travel times almost to the minute.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in McNairy County, Tennessee
| Traffic | vehicles per day7,122 |
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| Trucks | 12.0% |
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| Average travel time | 36.4 min |
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| Congestion ratio | 9.6% |
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| Drivers’ average age | 49.2 yrs |
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| Drivers’ average income | $51,267 |
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Highways carry more than half of all travel in McNairy County, Tennessee (61% of vehicle-miles). The average highway carries 7,122 vehicles per day, 392% more than the average non-highway road in the same area, which carries 1,449 vehicles per day.
Highways make up 26% of the monitored road miles (89 miles, 583 segments), so they carry more than their share: 438,018 vehicle-miles traveled per day (≈160 million per year).
Fewer highway trucks than 72% of counties in Tennessee
Highway truck concentration here runs 23% lower than the state average, at 12.0%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
By truck concentration, highways here trail 59% of counties in Tennessee. 72% of counties in Tennessee see more highway trucks per day than McNairy's roughly 857.

Non-highway Traffic in McNairy County, Tennessee
| Traffic | vehicles per day1,449 |
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| Trucks | 8.3% |
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| Average travel time | 29.9 min |
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| Congestion ratio | 5.1% |
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| Drivers’ average age | 50.2 yrs |
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| Drivers’ average income | $51,289 |
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A significant share of driving in McNairy County, Tennessee, 39% of vehicle-miles, happens on local roads. A typical local road sees 1,449 vehicles per day.
Spread over 257 miles and 1,846 segments, 74% of the road network, local roads carry a lighter load per mile: 278,606 vehicle-miles traveled per day (≈102 million per year). Trucks make up 8.3% of non-highway traffic, about 1 in 12 vehicles.
Drivers from lower-income areas than 88% of counties in Tennessee
Non-highway roads carry a truck concentration that's 31% lower than the highway network.
Non-highway congestion (5.1%) runs 67% lower than the state average, pointing to smoother local traffic flow.
88% of counties in Tennessee see higher average driver income among trip origins than McNairy. The driver population here skews older than 65% of counties in Tennessee.