
Total Traffic Volume & Performance in Nassau County, Florida
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day5,904 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 11.4% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 30.7 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. | 17.2% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.9 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $88,177 |
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The average monitored road in Nassau County, Florida carries 5,904 vehicles per day. Across its 414 miles of monitored roads, that adds up to 3,099,670 vehicle-miles traveled per day (≈1.1 billion per year). At 11.4%, the truck share runs above the 8.6% across Florida: about 1 in 9 vehicles.
Shorter trips than 88% of counties in Florida
Nassau sees 40% lower average daily traffic volume than the state average (5,904 vehicles per day against 9,922), suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. Across the whole network, that travel is about 0.6% of Florida's statewide total. By volume, Nassau's 5,904 vehicles per day trails 61% of counties in Florida.
The average trip takes 30.7 minutes, 8% lower than the state level. On travel time, Nassau runs shorter than 88% of counties in Florida.
Congestion runs 28% lower than the state level, at a ratio of 17.2%, which means smoother traffic flow - fewer delays make delivery windows more reliable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Nassau County, Florida
| Traffic | vehicles per day12,162 |
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| Trucks | 13.4% |
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| Average travel time | 33.5 min |
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| Congestion ratio | 31.6% |
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| Drivers’ average age | 47.0 yrs |
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| Drivers’ average income | $86,693 |
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A little more than half of the driving in Nassau County, Florida happens on highways: 66% of all vehicle-miles. The average highway carries 12,162 vehicles per day, 170% more than the average non-highway road in the same area, which carries 4,513 vehicles per day.
Highways make up 36% of the monitored road miles (150 miles, 1,380 segments), so they carry more than their share: 2,059,729 vehicle-miles traveled per day (≈752 million per year).
By highway travel volume, Nassau outranks 51% of counties in Florida.
Fewer highway trucks than 76% of counties in Florida
The concentration of trucks on highways (13.4%) is 19% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.
By truck concentration, highways here trail 54% of counties in Florida. Nassau's highway truck count is lower than 76% of counties in Florida, at roughly 1,633 trucks per day.

Non-highway Traffic in Nassau County, Florida
| Traffic | vehicles per day4,513 |
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| Trucks | 7.3% |
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| Average travel time | 30.0 min |
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| Congestion ratio | 13.9% |
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| Drivers’ average age | 50.1 yrs |
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| Drivers’ average income | $90,080 |
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Local roads carry a significant share of travel in Nassau County, Florida: 34% of all vehicle-miles. The average non-highway road carries 4,513 vehicles per day.
Spread over 264 miles and 6,207 segments, 64% of the road network, local roads carry a lighter load per mile: 1,039,942 vehicle-miles traveled per day (≈380 million per year). Trucks make up 7.3% of non-highway traffic, about 1 in 14 vehicles.
Drivers from higher-income areas than 76% of counties in Florida
Compared to highways, non-highway routes see 46% fewer trucks by share.
The non-highway congestion ratio of 13.9% is 38% lower than the state level, suggesting more efficient local mobility than the state average.
Nassau's average driver income is higher than 76% of counties in Florida. The driver population here skews younger than 61% of counties in Florida.