
Total Traffic Volume & Performance in Polk County, Florida
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day8,456 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 9.1% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 35.1 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. | 21.7% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 45.5 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $70,333 |
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The average monitored road in Polk County, Florida carries 8,456 vehicles per day. Across its 1,993 miles of monitored roads, that adds up to 19,301,756 vehicle-miles traveled per day (≈7.0 billion per year). Trucks are 9.1% of traffic, close to the 8.6% across Florida.
Longer trips than 74% of counties in Florida
Polk's average daily traffic volume is 15% lower than the state average - 8,456 vehicles per day against 9,922 - a critical factor for logistics and site planning. Across the whole network, that travel is about 3.7% of Florida's statewide total. 62% of counties in Florida see less traffic than Polk's 8,456 vehicles per day.
At 35.1 minutes, the average travel time is 6% higher than the state level. On travel time, Polk runs longer than 74% of counties in Florida.
Congestion is somewhat lower than the state level, at a ratio of 21.7% (9% lower).
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Polk County, Florida
| Traffic | vehicles per day18,479 |
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| Trucks | 11.9% |
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| Average travel time | 42.5 min |
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| Congestion ratio | 34.4% |
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| Drivers’ average age | 44.6 yrs |
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| Drivers’ average income | $71,277 |
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Highways carry about half of all travel in Polk County, Florida, 46% of vehicle-miles. The average highway carries 18,479 vehicles per day, 150% more than the average non-highway road in the same area, which carries 7,398 vehicles per day.
With 21% of the road miles (424 miles in 3,642 segments), highways punch above their length, carrying 8,844,776 vehicle-miles traveled per day (≈3.2 billion per year).
90% of counties in Florida move less traffic on their highways.
A typical mix of freight and passenger traffic
At 11.9%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Florida: neither freight- nor commuter-dominated.
63% of counties in Florida see a higher highway truck share than Polk's 11.9%. By raw truck volume, Polk carries fewer highway trucks than 59% of counties in Florida.

Non-highway Traffic in Polk County, Florida
| Traffic | vehicles per day7,398 |
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| Trucks | 6.8% |
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| Average travel time | 34.4 min |
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| Congestion ratio | 20.4% |
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| Drivers’ average age | 46.0 yrs |
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| Drivers’ average income | $69,833 |
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Local roads carry about half of all travel in Polk County, Florida, 54% of vehicle-miles. A typical local road sees 7,398 vehicles per day.
Spread over 1,568 miles and 34,517 segments, 79% of the road network, local roads carry a lighter load per mile: 10,456,980 vehicle-miles traveled per day (≈3.8 billion per year). Trucks make up 6.8% of non-highway traffic, about 1 in 15 vehicles.
Younger drivers than 80% of counties in Florida
Non-highway roads carry a truck concentration that's 43% lower than the highway network.
Non-highway congestion (20.4%) runs slightly lower than the state level (10% lower).
Polk's average driver income is lower than 52% of counties in Florida. 80% of counties in Florida have an older driver population than Polk.